[Tables of Vertical and Horizontal Components of Distances of Pilot Balloons] [From the U.S. Government Publishing Office, www.gpo.gov] ——------- , ,, _ , Document 1x71.3 s: // - Reserve TM u_420 WAR DEPARTMENT TECHNICAL MANUAL & TABLES OF VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES OF PILOT BALLOONS August 7 1941 NON-CIRCULATING NTSU LIBRARY *TM 11-420 1-2 TECHNICAL MANUAL No. 11-420 WAR DEPARTMENT, Washington, August 7, 1941. TABLES OF VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES OF PILOT BALLOONS Prepared under direction of the Chief Signal Officer Paragraph Purpose____________________________________________________________________ 1 Vertical components of distances__________________________________________ 2 Horizontal components of distances_________________________________________ 3 1. Purpose.—These tables were prepared for the purpose of furnishing to the meteorological observer a simple method for determining the vertical and the horizontal components of the distance from the observing point to the pilot balloon at the end of each minute after the beginning of the ascension. The data contained in these tables are applicable only when one of the standard types of pilot balloons listed in paragraph 2e below is inflated in accord with the instructions given there. 2. Vertical components of distances.—a. The position of a pilot balloon in space, with reference to the starting point, at any instant after the ascension begins, may be described by stating the height of the balloon above the starting point and the direction and length of the horizontal component of the distance from the starting point to the balloon. b. When a pilot balloon ascends in the free atmosphere, it seldom rises vertically but nearly always, as it rises, is carried away from a vertical path by the horizontal component of the motion of the air. The position of a balloon in space at any instant after the beginning of an ascension is due almost entirely, therefore, to the two major forces that are acting on the balloon; first, the force acting upward because the inflated balloon weighs less than the atmosphere that it displaces, and second, the force acting horizontally because the balloon is floating in an atmosphere that is moving horizontally and carrying the balloon along with it. c. With a given force acting upward on a pilot balloon, the balloon will ascend faster in turbulent air than in still air. The air near the ground usually is more turbulent than the air at greater heights. Therefore, the rate of ascent of a pilot balloon nearly always is greatest •"This pamphlet supersedes Signal Corps Circular No. 8-14, April 15, 1936. 312956°—41 TM 11-420 2-3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES near the ground and this rate decreases gradually with increase in height until an altitude of about 1,100 yards above the ground is reached. Above this level the rate of ascent of the balloon is approximately constant. d. In order to simplify the computations involved in determining the position of a pilot balloon in space at the end of each minute after the beginning of an ascension, the pilot balloon is inflated with a sufficient amount of hydrogen gas to cause the balloon to ascend at the rate of 200 yards per minute after it is above the turbulent surfaceair layer. e. The standard types of rubber pilot balloons to which these tables apply are known as balloons ML-50, ML-51, ML-64, ML-155, and ML-156. These pilot balloons weigh approximately 1.06 ounces each, are about 6 inches in diameter when not inflated, and are capable of being inflated to a diameter of somewhat more than 30 inches before bursting. The standard practice is to inflate the balloon with a sufficient amount of hydrogen gas so . that the balloon will support in equilibrium in the atmosphere a weight of 4.66 ounces, in addition to the weight of the balloon. If a standard pilot balloon is inflated as described above, the weight then removed, and the balloon released in the free atmosphere, it will ascend, on the average, at the rates shown below: Yards During the first minute________________________________ 240 During the second minute_______________________________ 220 During the third minute________________________________ 220 During the fourth minute_______________________________ 210 During the fifth minute________________________________ 210 During each subsequent minute__________________________ 200 These rates of ascent are generally, but not always, correct to within 10 percent. 3. Horizontal components of distances.—a. The horizontal component of the distance from the observing point to the balloon is the distance that the balloon has moved in a horizontal direction while ascending to a particular height. As the balloon is free to move with the air, the horizontal movement of the balloon represents the average movement of the air layer between the observing point and the level of the balloon during the time the balloon was passing through this air layer. The horizontal component of the distance from the observing point to the balloon may be computed at any instant if the height of the balloon above the observing point and the elevation angle of the balloon as viewed through the theodolite are known. The height of the balloon may be determined from its rate of ascent as given in paragraph 2. The elevation angle of the 2 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 balloon as viewed through the theodolite is determined by reading the elevation angle of the theodolite. The horizontal component of the distance in yards from the observing point to the balloon may be determined by multiplying the height of the balloon in yards by the natural cotangent of the angle of elevation of the balloon. b. To avoid the necessity of performing this multiplication, the following tables have been included in this manual for determining the horizontal component of the distance from the observing point to the balloon during ascensions lasting for 30 minutes or less. In order to determine the horizontal component of the distance from the observing point to the balloon with these tables, it is merely necessary to turn to the page with the height of the balloon given at the top of the page and select the figure that is set under the angle of elevation of the balloon. For example, suppose it is desired to find the horizontal component of the distance from the observing point to the balloon at the end of the seventh minute, when the angle of elevation of the balloon is 37.8°. At the end of the seventh minute the balloon is 1,500 yards high. On page 16 of this manual under the elevation angle of 37.8° there will be found the figure 1,930. The horizontal component of the distance from the observing point to the balloon is therefore 1,930 yards. c. To find the horizontal component of the distance from the observing point to the balloon when an ascension continues for more than 30 minutes, it will be necessary to multiply the elevation of the balloon in yards by the cotangent of the elevation angle. Suppose, for example, it is desired to determine the horizontal component of the distance from the observing point to the balloon at the end of the thirty-fifth minute when the angle of elevation of the balloon is 37.8°. The balloon is 7,100 yards high at the end of the thirty-fifth minute of the ascension. It will be necessary to multiply 7,100 by the cotangent of the angle of elevation of the balloon. A table of natural cotangents is included in this manual on pages 64 and 65. The natural cotangent of 37.8° is 1.2892. 7100X1.2892 = 9153.3. The horizontal component of the distance from the observing point to the balloon is therefore 9,153.3 yards, which is recorded as 9,150 yards. The data are recorded only to the nearest 10 yards. 3 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon 1 minute after release of balloon; altitude of balloon, 2^0 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 2, 740 2, 690 2, 640 2, 590 2, 540 2, 490 2, 450 2, 400 2, 360 2, 320 6 2, 280 2, 250 2, 210 2, 170 2, 140 2, 110 2, 070 2, 040 2, 010 1, 980 7 1, 950 1, 930 1, 900 1, 870 1, 850 1, 820 1, 800 1, 780 1, 750 1, 730 8 1, 710 1, 690 1, 670 1, 650 1, 630 1, 610 1, 590 1, 570 1, 550 1, 530 9 1, 520 1, 500 1, 480 1, 470 1, 450 1, 430 1, 420 1, 400 1, 390 1, 380 10 1, 360 1, 350 1, 330 1, 320 1, 310 1, 290 1, 280 1, 270 1, 260 1, 250 11 1, 230 1, 220 1, 210 1, 200 1, 190 1, 180 1, 170 1, 160 1, 150 1, 140 12 1, 130 1, 120 1, 110 1, 100 1, 090 1, 080 1, 070 1, 060 1, 060 1, 050 13 1, 040 1, 030 1, 020 1, 020 1, 010 1, 000 990 980 980 970 14 960 960 950 940 930 930 920 910 910 900 15 900 890 880 880 870 870 860 850 850 840 16 840 830 830 820 820 810 810 800 790 790 17 790 780 780 770 770 760 760 750 750 740 18 740 730 730 730 720 720 710 710 700 700 19 700 690 690 690 680 680 670 670 670 660 20 660 660 650 650 650 640 640 640 630 630 21 630 620 620 620 610 610 610 600 600 600 22 590 590 590 590 580 580 580 570 570 570 23 570 560 560 560 550 550 550 550 540 540 24 540 540 530 530 530 530 520 520 520 520 25 510 510 510 510 510 500 500 500 500 490 26 490 490 490 490 480 480 480 480 480 470 27 470 470 470 460 460 460 460 460 460 450 28 450 450 450 450 440 440 440 440 440 430 29 430 430 430 430 430 420 420 420 420 420 30 420 410 410 410 410 410 410 400 400 400 31 400 400 400 390 390 390 390 390 390 390 32 380 380 380 380 380 380 380 370 370 370 33 370 370 370 370 360 360 360 360 360 360 34 360 350 350 350 350 350 350 350 350 340 35 340 340 340 340 340 340 340 330 330 330 36 330 330 330 330 330 320 320 320 320 320 37 320 320 320 320 310 310 310 310 310 310 38 310 310 300 300 300 300 300 300 300 300 39 300 '300 290 290 290 290 290 290 290 290 40 290 280 280 280 280 280 280 280 280 280 41 280 280 270 270 270 270 270 270 270 270 42 270 270 260 260 260 260 260 260 260 260 43 260 260 260 250 250 250 250 250 250 250 44 250 250 250 250 250 240 240 240 240 240 45 240 240 240 240 240 240 240 230 230 230 46 230 230 230 230 230 230 230 230 230 220 47 220 220 220 220 220 220 220 220 220 220 4 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—-Continued 1 minute after release of balloon; altitude of balloon, 2^0 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees _ 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48_ _ 220 220 210 210 210 210 210 210 210 210 49_ _ 210 210 210 210 210 200 200 200 200 200 50 200 200 200 200 200 200 200 200 200 200 51 190 190 190 190 190 190 190 190 190 190 52 190 190 190 190 180 180 180 180 180 180 53_ 180 180 180 180 180 180 180 180 180 180 54 170 170 170 170 170 170 170 170 170 170 55 170 170 170 170 170 160 160 160 160 160 56 160 160 160 160 160 160 160 160 160 160 57 160 160 150 150 150 150 150 150 150 150 58_ 150 150 150 150 150 150 150 150 150 140 59 140 140 140 140 140 140 140 140 140 140 60 140 140 140 140 140 140 140 130 130 130 61 130 130 130 130 130 130 130 130 130 130 62 130 130 130 130 130 120 120 120 120 120 63 120 120 120 120 120 120 120 120 120 120 64 120 120 120 120 110 110 110 110 110 110 65 110 110 110 110 110 110 110 110 110 110 66 110 110 110 110 100 100 100 100 100 100 67 100 100 100 100 100 100 100 100 100 100 68 100 100 100 100 100 90 90 90 90 90 69 90 90 90 90 90 90 90 90 90 90 70 90 90 90 90 90 80 80 80 80 80 71_ __ 80 80 80 80 80 80 80 80 80 80 72 80 80 80 80 80 80 80 70 70 70 73 70 70 70 70 70 70 70 70 70 70 74 70 70 70 70 70 70 70 70 70 60 75 60 60 60 60 60 60 60 60 60 60 76 60 60 60 60 60 60 60 60 60 60 77 60 50 50 50 50 50 50 50 50 50 78 50 50 50 50 50 50 50 50 50 50 79_ _ 50 50 50 50 40 40 40 40 40 40 80 40 40 40 40 40 40 40 40 40 40 81 40 40 40 40 40 40 40 40 30 30 82 __ 30 30 30 30 30 30 30 30 30 30 83 30 30 30 30 30 30 30 30 30 30 84 30 20 20 20 20 20 20 20 20 20 85 20 20 20 20 20 20 20 20 20 20 86 20 20 20 20 20 10 10 10 10 10 87 10 10 10 10 10 10 10 10 10 10 88 10 10 10 10 10 10 10 10 10 10 89 0 0 0 0 0| 0 0 0 0 0 5 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 2 minutes after release of balloon; altitude of balloon, f60 yards Elevation angle of balloon in degrees and tenths of a degree Degrees._ 0.0 O.1 0.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 5, 260 4, 380 3, 750 3, 270 2, 900 2, 610 5, 150 4, 300 3, 690 3, 230 2, 870 2, 580 5, 060 4, 230 4, 960 4, 870 4, 780 4, 690 4, 610 4, 530 3, 860 4, 450 6 4, 170 4, 100 4, 040 3, 980 3, 920 3, 800 7 3, 640 3, 190 3, 590 3, 540 3, 490 3, 450 3, 400 3, 360 3, 320 2, 940 8 3, 150 3, 120 3, 080 3, 040 3, 010 2, 970 9___ 2, 840 2, 560 2, 810 2, 780 2, 750 2, 720 2, 690 2, 660 2, 640 10 2, 530 2, 510 2, 480 2, 460 2, 430 2, 410 2, 390 11 2, 370 2, 340 2, 320 2, 300 2, 280 2, 260 2, 240 2, 220 2, 200 2, 180 12 2, 160 2, 150 2, 130 2, 110 2, 090 2, 070 2, 060 2, 040 2, 020 2, 010 13 1, 990 1, 980 1, 960 1, 950 1, 930 1, 920 1, 900 1, 890 1, 870 1, 860 14 1, 840 1, 830 1, 820 1, 800 1, 790 1, 780 1, 770 1, 750 1, 740 1, 730 15 1, 720 1, 700 1, 690 1, 680 1, 670 1, 660 1, 650 1, 640 1, 630 1, 610 16 1, 600 1, 590 1, 580 1, 570 1, 560 1, 550 1, 540 1, 530 1, 520 1, 510 17 1, 500 1, 500 1, 490 1, 480 1, 470 1, 460 1, 450 1, 440 1, 430 1, 420 18 1, 420 1, 410 1, 400 1, 390 1, 380 1, 370 1, 370 1, 360 1, 350 1, 340 19 1, 340 1, 330 1, 320 1, 310 1, 310 1, 300 1, 290 1, 280 1, 280 1, 270 20 1, 260 1, 260 1, 250 1, 240 1, 240 1, 230 1, 220 1, 220 1, 210 1, 200 21 1, 200 1, 190 1, 190 1, 180 1, 170 1, 170 1, 160 1, 160 1, 150 1, 140 22 1, 140 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 1, 100 1, 090 1, 090 23 1, 080 1, 080 1, 070 1, 070 1, 060 1, 060 1, 050 1, 050 1, 040 1, 040 24 1, 030 1, 030 1, 020 1, 020 1, 010 1, 010 1, 000 1, 000 1, 000 990 25 990 980 980 970 970 960 960 960 950 950 26 940 940 930 930 930 920 920 910 910 910 27 900 900 900 890 890 880 880 880 870 870 28 870 860 860 850 850 850 840 840 840 830 29 830 830 820 820 820 810 810 810 800 800 30 800 790 790 790 780 780 780 770 770 770 31 770 760 760 760 750 750 750 740 740 740 32 740 730 730 730 720 720 720 720 710 710 33 710 710 700 700 700 690 690 690 690 680 34 680 680 680 670 670 670 670 660 660 660 35 660 650 650 650 650 640 640 640 640 640 36 630 630 630 630 620 620 620 620 610 610 37 610 610 610 600 600 600 600 600 590 590 38 590 590 580 580 580 580 580 570 570 570 39 570 570 560 560 560 560 560 550 550 550 40 550 550 540 540 540 540 540 530 530 530 41 530 530 530 520 520 520 520 520 510 510 42 510 510 510 510 500 500 500 500 500 500 43 490 490 490 490 490 480 480 480 480 480 44 480 470 470 470 470 470 470 460 460 460 45 460 460 460 460 450 450 450 450 450 450 46 440 440 440 440 440 440 440 430 430 430 47 430 430 430 420 420 420 420 420 420 420 6 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 2 minutes after release of balloon; altitude of balloon, 460 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.3 O.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 410 410 410 410 410 410 410 400 400 400 49 400 400 400 400 390 390 390 390 390 390 50 390 380 380 380 380 380 380 380 380 370 51 370 370 370 370 370 370 360 360 360 360 52 360 360 360 360 350 350 350 350 350 350 53 350 350 340 340 340 340 340 340 340 340 54 330 330 330 330 330 330 330 330 320 320 55 320 320 320 320 320 320 310 310 310 310 56 310 310 310 310 310 300 300 300 300 300 57 300 300 300 300 290 290 290 290 290 290 58 290 290 290 280 280 280 280 280 280 280 59 280 280 270 270 270 270 270 270 270 270 60 270 260 260 260 260 260 260 260 260 260 61 250 250 250 250 250 250 250 250 250 250 62 240 240 240 240 240 240 240 240 240 240 63 230 230 230 230 230 230 230 230 230 230 64 220 220 220 220 220 220 220 220 220 220 65 210 210 210 210 210 210 210 210 210 21'0 66 200 200 200 200 200 200 200 200 200 200 67 200 190 190 190 190 190 190 190 190 190 68 190 180 180 180 180 180 180 180 180 180 69 180 180 170 170 170 170 170 170 170 170 70 170 170 170 160 160 160 160 160 160 160 71 160 160 160 160 150 150 150 150 150 150 72 150 150 150 150 150 150 140 140 140 140 73 140 140 140 140 140 140 140 130 130 130 74 130 130 130 130 130 130 130 130 120 120 75 120 120 120 120 120 120 120 120 120 120 76 110 110 110 110 110 110 110 110 110 110 77 110 110 100 100 100 100 100 100 100 100 78 100 100 100 100 90 90 90 90 90 90 79 90 90 90 90 90 90 80 80 80 80 80 80 80 80 80 80 80 80 80 70 70 81 70 70 70 70 70 70 70 70 70 70 82 60 60 60 60 60 60 60 60 60 60 83 60 60 50 50 50 50 50 50 50 50 84 50 50 50 50 50 40 40 40 40 40 85 40 40 40 40 40 40 40 30 30 30 86 30 30 30 30 30 30 30 30 30 20 87 20 20 20 20 20 20 20 20 20 20 88 20 20 10 10 10 10 10 10 10 10 89 10 10 10 10 0 0 0 0 0 0 7 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 3 minutes after release of balloon; altitude of balloon, 680 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.2 O.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 7, 770 7, 620 7, 470 7, 330 7, 190 7, 070 6, 940 6, 810 6, 690 6, 580 6 6, 470 6, 360 6, 260 6, 160 6, 060 5, 970 5, 880 5, 790 5, 700 5. 620 7 5, 540 5, 460 5, 380 5, 310 5, 240 5, 170 5, 100 5, 030 4, 960 4, 900 8 4, 840 4, 780 4, 720 4, 660 4, 600 4, 550 4, 500 4, 440 4, 390 4, 340 9 4, 290 4, 250 4, 200 4, 150 4, 110 4, 060 4, 020 3, 980 3, 940 3, 900 10 3, 860 3, 820 3, 780 3, 740 3, 710 3, 670 3, 630 3, 600 3, 560 3, 530 11 3, 500 3, 470 3, 430 3, 400 3, 370 3, 340 3, 310 3, 280 3, 250 3, 230 12 3, 200 3, 170 3, 150 3, 120 3, 090 3, 070 3, 040 3, 020 2, 990 2, 970 13 2, 950 2, 920 2, 900 2, 880 2, 850 2, 830 2, 810 2, 790 2, 770 2, 750 14 2, 730 2, 710 2, 690 2, 670 2, 650 2, 630 2, 610 2, 590 2, 570 2, 560 15 2, 540 2, 520 2, 500 2, 490 2, 470 2, 450 2, 440 2, 420 2, 400 2, 390 16 2, 370 2, 360 2, 340 2, 330 2, 310 2, 300 2, 280 2, 270 2, 250 2, 240 17 2, 220 2, 210 2, 200 2, 180 2, 170 2, 160 2, 140 2, 130 2, 120 2, 110 18 2, 090 2, 080 2, 070 2, 060 2, 040 2, 030 2, 020 2, 010 2, 000 1, 990 19 1, 970 1, 960 1, 950 1, 940 1, 930 1, 920 1, 910 1, 900 1, 890 1, 880 20 1, 870 1, 860 1, 850 1, 840 1, 830 1, 820 1, 810 1, 800 1, 790 1, 780 21 1, 770 1, 760 1, 750 1, 740 1, 740 1, 730 1, 720 1, 710 1, 700 1, 690 22 1, 680 1, 670 1, 670 1, 660 1, 650 1, 640 1, 630 1, 630 1, 620 1, 610 23 1, 600 1, 590 1, 590 1, 580 1, 570 1, 560 1, 560 1, 550 1, 540 1, 530 24 1, 530 1, 520 1, 510 1, 510 1, 500 1, 490 1, 490 1, 480 1, 470 1, 460 25 1, 460 1, 450 1, 450 1, 440 1, 430 1, 430 1, 420 I, 410 1, 410 1, 400 26 1, 390 1, 390 1, 380 1, 380 1, 370 1, 360 1, 360 1. 350 1, 350 1, 340 27 1, 330 1, 330 1, 320 1, 320 1, 310 1, 310 1, 300 1, 300 1, 290 1, 280 28 1, 280 1, 270 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 29 1, 230 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 1, 190 1, 180 30 1, 180 1, 170 1, 170 1, 160 1, 160 1, 150 1, 150 1, 150 1, 140 1, 140 31 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 1, 110 1, 100 1, 100 1, 090 32 1, 090 . 1, 080 1, 080 1, 080 1, 070 1, 070 1, 060 1, 060 1, 060 1, 050 33 1, 050 1, 040 1, 040 1. 040 1, 030 1. 030 1, 020 1, 020 1, 020 1, 010 34 1, 010 1, 000 1, 000 1, 000 990 990 990 980 980 970 35 970 970 960 960 960 950 950 950 940 940 36 940 930 930 930 920 920 920 910 910 910 37 900 900 900 890 890 890 880 880 880 870 38 870 870 860 860 860 850 850 850 850 840 39 840 840 830 830 830 820 820 820 820 810 40 810 810 800 800 800 800 790 790 790 780 41 780 780 780 770 770 770 770 760 760 760 42 760 750 750 750 740 740 740 740 730 730 43 730 730 720 720 720 720 710 710 710 710 44 700 700 700 700 690 690 690 690 680 680 45 680 680 680 670 670 670 670 660 660 660 46 660 650 650 650 650 650 640 640 640 640 47 630 630 630 630 630 620 620 620 620 610 8 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued S minutes after release of balloon; altitude of balloon, 680 yards—-Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 610 610 610 610 600 600 600 600 600 590 49 590 590 590 580 580 580 580 580 570 570 50 570 570 570 560 560 560 560 560 550 550 51 550 550 550 540 540 540 540 540 540 530 52 530 530 530 530 520 520 520 520 520 510 53 510 510 510 510 510 500 500 500 500 500 54 490 490 490 490 490 490 480 480 480 480 55 480 470 470 470 470 470 470 460 460 460 56 460 460 460 450 450 450 450 450 440 440 57 440 440 440 440 430 430 430 430 430 430 58 420 420 420 420 420 420 420 410 410 410 59 410 410 410 400 400 400 400 400 400 390 60 390 390 390 390 390 380 380 380 380 380 61 380 380 370 370 370 370 370 370 360 360 62 360 360 360 360 360 350 350 350 350 350 63 350 340 340 340 340 340 340 340 330 330 64 330 330 330 330 330 320 320 320 320 320 65 320 320 310 310 310 310 310 310 310 300 66 300 300 300 300 300 300 290 290 290 290 67 290 290 290 280 280 280 280 280 280 280 68 270 270 270 270 270 270 270 270 260 260 69 260 260 260 260 260 250 250 250 250 250 70 250 250 240 240 240 240 240 240 240 240 71 230 230 230 230 230 230 230 220 220 220 72 220 220 220 220 220 210 210 210 210 210 73 210 210 210 200 200 200 200 200 200 200 74 190 190 190 190 190 190 190 190 180 180 75 180 180 180 180 180 180 170 170 170 170 76 170 170 170 170 160 160 160 160 160 160 77 160 160 150 150 150 150 150 150 150 150 78 140 140 140 140 140 140 140 140 130 130 79 130 130 130 130 130 130 120 120 120 120 80 120 120 120 120 110 110 110 110 110 110 81 110 110 100 100 100 100 100 100 100 100 82 100 90 90 90 90 90 90 90 90 80 83 80 80 80 80 80 80 80 80 70 70 84 70 70 70 70 70 70 60 60 60 60 85 60 60 60 60 50 50 50 50 50 50 86 50 50 50 40 40 40 40 40 40 40 87 40 30 30 30 30 30 30 30 30 20 88 20 20 20 20 20 20 20 20 10 10 89 10 10 10 10 10 10 0 0 0 0 312956°—41—-2 9 TM 11—420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 4 minutes after release of balloon; altitude of balloon, 890 yards Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 10, 170 9, 970 9, 780 9, 590 9, 420 9, 250 9, 080 8, 920 8, 760 8, 610 6 8, 470 8^ 330 8' 190 8^ 060 7, 930 7, 810 7', 690 7, 580 7, 460 7, 350 7 7, 250 7, 150 7, 050 6' 950 6, 850 6^ 760 6' 670 6' 580 6' 500 6' 410 8 6, 330 6, 250 6; 180 6, 100 6j 030 5, 960 5^ 880 5, 820 5, 750 5, 680 9 5, 620 5, 560 5, 500 5, 430 5, 380 5, 320 5, 260 5, 210 5, 150 5, 100 10 5, 050 5, 000 4, 950 4, 900 4, 850 4, 800 4, 760 4, 710 4, 670 4, 620 11 4, 580 4, 540 4, 490 4, 450 4, 410 4, 370 4, 340 4, 300 4, 260 4, 220 12 4, 190 4, 150 4, 120 4, 080 4, 050 4, 010 3, 980 3, 950 3, 920 3, 890 13 3, 860 3, 820 3, 790 3, 760 3, 740 3, 710 3, 680 3, 650 3, 620 3, 600 14 3, 570 3, 540 3, 520 3, 490 3, 470 3, 440 3, 420 3, 390 3, 370 3, 340 15 3, 320 3, 300 3, 280 3, 250 3, 230 3, 210 3, 190 3, 170 3, 150 3, 120 16 3, 100 3, 080 3, 060 3, 040 3, 020 3, 000 2, 990 2, 970 2, 950 2, 930 17 2, 910 2, 890 2, 880 2, 860 2, 840 2, 820 2, 810 2, 790 2, 770 2, 760 18 2, 740 2, 720 2, 710 2, 690 2, 680 2, 660 2, 640 2, 630 2, 610 2, 600 19 2, 580 2, 570 2, 560 2, 540 2, 530 2, 510 2, 500 2, 490 2, 470 2, 460 20 2, 450 2, 430 2, 420 2, 410 2, 390 2, 380 2, 370 2, 360 2, 340 2, 330 21 2, 320 2, 310 2, 290 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 2, 210 22 2, 200 2, 190 2, 180 2, 170 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 23 2, 100 2, 090 2, 080 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 24 2, 000 1, 990 1, 980 1, 970 1, 960 1, 950 1, 940 1, 940 1, 930 1, 920 25 1, 910 1, 900 1, 890 1, 880 1, 870 1, 870 1, 860 1, 850 1, 840 1, 830 26 1, 820 1, 820 1, 810 1, 800 1, 790 1, 790 1, 780 1, 770 1, 760 1, 750 27 1, 750 1, 740 1, 730 1, 720 1, 720 1, 710 1, 700 1, 700 1, 690 1, 680 28 1, 670 1, 670 1, 660 1, 650 1, 650 1, 640 1, 630 1, 630 1, 620 1, 610 29 1, 610 1, 600 1, 590 1, 590 1, 580 1, 570 1, 570 1, 560 1, 550 1, 550 30 1, 540 1, 540 1, 530 1, 520 1, 520 1, 510 1, 500 1, 500 1, 490 1, 490 31 1, 480 1, 480 1, 470 1, 460 1, 460 1, 450 1, 450 1, 440 1, 440 1, 430 32 1, 420 1, 420 1, 410 1, 410 1, 400 1, 400 1, 390 1, 390 1, 380 1, 380 33 1, 370 1, 370 1, 360 1, 350 1, 350 1, 340 1, 340 1, 330 1, 330 1, 320 34 1, 320 1, 310 1, 310 1, 300 1, 300 1, 290 1, 290 1, 290 1, 280 1, 280 35 1, 270 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 230 36 1, 220 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 1, 190 1, 190 37 1, 180 1, 180 1, 170 1, 170 1, 160 1, 160 1, 160 1, 150 1, 150 1, 140 38 1, 140 1, 140 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 1, 110 1, 100 39 1, 100 1, 100 1, 090 1, 090 1, 080 1, 080 1, 080 1, 070 1, 070 1, 060 40 1, 060 1, 060 1, 050 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 1, 030 41 1, 020 1, 020 1, 020 1, 010 1, 010 1, 010 1, 000 1, 000 1, 000 990 42 990 980 980 980 970 970 970 960 960 960 43 950 950 950 940 940 940 930 930 930 920 44 920 920 920 910 910 910 900 900 900 890 45 890 890 880 880 880 870 870 870 870 860 46 860 860 850 850 850 840 840 840 840 830 47 830 830 820 820 820 820 810 810 810 800 10 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 4 minutes after release of balloon; altitude of balloon, 890 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.3 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 800 800 800 790 790 790 780 780 780 780 49 770 770 770 770 760 760 760 750 750 750 50 750 740 740 740 740 730 730 730 730 720 51 720 720 720 710 710 710 710 700 700 700 52 700 690 690 690 690 680 680 680 680 670 53 670 670 670 660 660 660 660 650 650 650 54 650 640 640 640 640 630 630 630 630 630 55 620 620 620 620 610 610 610 610 600 600 56 600 600 600 590 590 590 590 580 580 580 57 580 580 570 570 570 570 560 560 560 560 58 560 550 550 550 550 550 540 540 540 540 59 530 530 530 530 530 520 520 520 520 520 60 510 510 510 510 510 500 500 500 500 500 61 490 490 490 490 490 480 480 480 480 480 62 470 470 470 470 470 460 460 460 460 460 63 450 450 450 450 450 440 440 440 440 440 64 430 430 430 430 430 420 420 420 420 420 65 420 410 410 410 410 410 400 400 400 400 66 400 390 390 390 390 390 390 380 380 380 67 380 380 370 370 370 370 370 360 360 360 68 360 360 360 350 350 350 350 350 350 340 69 340 340 340 340 330 330 330 330 330 330 70 320 320 320 320 320 320 310 310 310 310 71 310 300 300 300 300 300 300 290 290 290 72 290 290 290 280 280 280 280 280 280 270 73 270 270 270 270 270 260 260 260 260 260 74 260 250 250 250 250 250 250 240 240 240 75 240 240 240 230 230 230 230 230 230 220 76 220 220 220 220 220 210 210 210 210 210 77 210 200 200 200 200 200 200 190 190 190 78 190 190 190 180 180 180 180 180 180 170 79 170 170 170 170 170 160 160 160 160 160 80 160 160 150 150 150 150 150 150 140 140 81 140 140 140 140 130 130 130 130 130 130 82 130 120 120 120 120 120 120 110 110 110 83 110 110 110 100 100 100 100 100 100 100 84 90 90 90 90 90 90 80 80 80 80 85 80 80 70 70 70 70 70 70 70 60 86 60 60 60 60 60 50 50 50 50 50 87 50 50 40 40 40 40 40 40 30 30 88 30 30 30 30 20 20 20 20 20 20 89 20 10 10 10 10 10 10 0 0 0 11 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 5 minutes after release of balloon; altitude of balloon, 1,100 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 12, 570 12, 320 12, 090 11, 860 11, 640 11, 430 11, 220 11, 020 10, 830 10, 640 6 10, 470 10, 290 10, 130 9, 960 9, 810 9, 650 9, 510 9, 360 9, 220 9, 090 7 8, 960 8, 830 8, 710 8, 590 8, 470 8, 360 8, 240 8, 140 8, 030 7, 930 8 7, 830 7, 730 7, 630 7, 540 7, 450 7, 360 7, 270 7, 190 7, 110 7, 020 9 6, 950 6, 870 6, 790 6, 720 6, 640 6, 570 6, 500 6, 440 6, 370 6, 300 10 6, 240 6, 180 6, 110 6, 050 5, 990 5, 940 5, 880 5, 820 5, 770 5, 710 11 5, 660 5, 610 5, 560 5, 500 5, 460 5, 410 5, 360 5, 310 5, 270 5, 220 12 5, 180 5, 130 5, 090 5, 050 5, 000 4, 960 4, 920 4, 880 4, 840 4, 800 13 4, 760 4, 730 4, 690 4, 650 4, 620 4, 580 4, 550 4, 510 4, 480 4, 440 14 4, 410 4, 380 4, 350 4, 320 4, 280 4, 250 4, 220 4, 190 4, 160 4, 130 15— 4, 110 4, 080 4, 050 4, 020 3, 990 3, 970 3, 940 3, 910 3, 890 3, 860 16— 3, 840 3, 810 3, 790 3, 760 3, 740 3, 710 3, 690 3, 670 3, 640 3, 620 17 3, 600 3, 580 3, 550 3, 530 3, 510 3, 490 3, 470 3, 450 3, 430 3, 410 18 3, 390 3, 370 3, 350 3, 330 3, 310 3, 290 3, 270 3, 250 3, 230 3, 210 19 3, 190 3, 180 3, 160 3, 140 3, 120 3, 110 3, 090 3, 070 3, 060 3, 040 20 3, 020 3, 010 2, 990 2, 970 2, 960 2, 940 2, 930 2, 910 2, 900 2, 880 21 2, 870 2, 850 2, 840 2, 820 2, 810 2, 790 2, 780 2, 760 2, 750 2, 740 22 2, 720 2, 710 2, 700 2, 680 2, 670 2, 660 2, 640 2, 630 2, 620 2, 600 23 2, 590 2, 580 2, 570 2, 550 2, 540 2, 530 2, 520 2, 510 2, 490 2, 480 24_— 2, 470 2, 460 2, 450 2, 440 2, 420 2, 410 2, 400 2, 390 2, 380 2, 370 25 2, 360 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 2, 290 2, 280 2, 270 26 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 2, 190 2, 180 2, 170 27 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 2, 100 2, 100 2, 090 2, 080 28 2, 070 2, 060 2, 050 2, 040 2, 030 2, 030 2, 020 2, 010 2, 000 1, 990 29 1, 980 1, 980 1, 970 1, 960 1, 950 1, 940 1, 940 1, 930 1, 920 1, 910 30 1, 910 1, 900 1, 890 1, 880 1, 870 1, 870 1, 860 1, 850 1, 850 1, 840 31 1, 830 1, 820 1, 820 1, 810 1, 800 1, 800 1, 790 1, 780 1, 770 1, 770 32 1, 760 1, 750 1, 750 1, 740 1, 730 1, 730 1, 720 1, 710 1, 710 1, 700 33 1, 690 1, 690 1, 680 1, 670 1, 670 1, 660 1, 660 1, 650 1, 640 1, 640 34 1, 630 1, 620 1, 620 1, 610 1, 610 1, 600 1, 590 1, 590 1, 580 1, 580 35 1, 570 1, 570 1, 560 1, 550 1, 550 1, 540 1, 540 1, 530 1, 530 1, 520 36 1, 510 1, 510 1, 500 1, 500 1, 490 1, 490 1, 480 1, 480 1, 470 1, 470 37 1, 460 1, 450 1, 450 1, 440 1, 440 1, 430 1, 430 1, 420 1, 420 1, 410 38 1, 410 1, 400 1, 400 1, 390 1, 390 1, 380 1, 380 1, 370 1, 370 1, 360 39 1, 360 1, 350 1, 350 1, 340 1, 340 1, 330 1, 330 1, 320 1, 320 1, 320 40 1, 310 1, 310 1, 300 1, 300 1, 290 1, 290 1, 280 1, 280 1, 270 1, 270 41 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 230 1, 230 42 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 200 1, 190 1, 190 1, 180 43 1, 180 1, 180 1, 170 1, 170 1, 160 1, 160 1, 160 1, 150 1, 150 1, 140 44 1, 140 1, 140 1, 130 1, 130 1, 120 1, 120 1, 120 1, 110 1, 110 1, 100 45 1, 100 1, 100 1, 090 1, 090 1, 080 1, 080 1, 080 1, 070 1, 070 1, 030 1, 070 46 1, 060 1, 060 1, 050 1, 050 1, 050 1, 040 1, 040 1, 040 1, 030 47 1, 030 1, 020 1, 020 1, 020 1, 010 1, 010 1, 000 1, 000 1, 000 990 12 TM 11—420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 5 minutes after release of balloon; altitude of balloon, 1,100 yards—-Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 990 990 980 980 980 970 970 970 960 960 49 960 950 950 950 940 940 940 930 930 930 50 920 920 920 910 910 910 900 900 900 890 51 890 890 880 880 880 870 870 870 870 860 52 860 860 850 850 850 840 840 840 830 830 53 830 830 820 820 820 810 810 810 810 800 54 800 800 790 790 790 780 780 780 780 770 55 770 770 760 760 760 760 750 750 750 740 56 740 740 740 730 730 730 730 720 720 720 57 710 710 710 710 700 700 700 700 690 690 58 690 680 680 680 680 670 670 670 670 660 59 660 660 660 650 650 650 650 640 640 640 60 640 630 630 630 620 620 620 620 610 610 61 610 610 600 600 600 600 590 590 590 590 62 580 580 580 580 580 570 570 570 570 560 63 560 560 560 550 550 550 550 540 540 540 64 540 530 530 530 530 520 520 520 520 520 65 510 510 510 510 500 500 500 500 490 490 66 490 490 490 480 480 480 480 470 470 470 67 470 460 460 460 460 460 450 450 450 450 68 440 440 440 440 440 430 430 430 430 420 69 420 420 420 420 410 410 410 410 400 400 70 400 400 400 390 390 390 390 390 380 380 71 380 380 370 370 370 370 370 360 360 360 72 360 360 350 350 350 350 340 340 340 340 73 340 330 330 330 330 330 320 320 320 320 74 320 310 310 310 310 310 300 300 300 300 75 290 290 290 290 290 280 280 280 280 280 76 270 270 270 270 270 260 260 260 260 260 77 250 250 250 250 250 240 240 240 240 240 78 230 230 230 230 230 220 220 220 220 220 79 210 210 210 210 210 200 200 200 200 200 80 190 190 190 190 190 180 180 180 180 180 81 170 170 170 170 170 160 160 160 160 160 82 150 150 150 150 150 140 140 140 140 140 83 140 130 130 130 130 130 120 120 120 120 84 120 110 110 110 110 110 100 100 100 100 85 100 90 90 90 90 90 80 80 80 80 86 80 80 70 70 70 70 70 60 60 60 87 60 60 50 50 50 50 50 40 40 40 88 40 40 30 30 30 30 30 20 20 20 89 201 20 20 10 10 10 10 10 0 0 13 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 6 minutes after release of balloon; altitude of balloon, 1,300 yards Degrees -. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 14, 860 14, 560 14, 290 14, 010 13, 750 13, 510 13, 260 13, 030 12, 800 12, 580 6 12, 370 12, 160 11, 970 11, 780 11, 590 11, 410 11, 240 11, 070 10, 900 10, 740 7 10, 590 10, 440 10, 290 10, 150 10, 010 9, 870 9, 740 9, 620 9, 490 9, 370 8 9, 250 9, 130 9, 020 8, 910 8, 800 8, 700 8, 600 8, 500 8, 400 8, 300 9 8, 210 8, 120 8, 030 7, 940 7, 850 7, 770 7, 690 7, 610 7, 530 7, 450 10 7, 370 7, 300 7, 230 7, 150 7, 080 7, 010 6, 950 6, 880 6, 810 6, 750 11 6, 690 6, 630 6, 570 6, 510 6, 450 6, 390 6, 330 6, 280 6, 220 6, 170 12 6, 120 6, 060 6, 010 5, 960 5, 910 5, 860 5, 820 5, 770 5, 720 5, 680 13 5, 630 5, 590 5, 540 5, 500 5, 460 5, 410 5, 370 5, 330 5, 290 5, 250 14 5, 210 5, 180 5, 140 5, 100 5, 060 5, 030 4, 990 4, 960 4, 920 4, 890 15 4, 850 4, 820 4, 780 4, 750 4, 720 4, 690 4, 660 4, 620 4, 590 4, 560 16 4, 530 4, 500 4, 470 4, 450 4, 420 4, 390 4, 360 4, 330 4, 310 4, 280 17 4, 250 4, 230 4, 200 4, 170 4, 150 4, 120 4, 100 4, 070 4, 050 4, 020 18 4, 000 3, 980 3, 950 3, 930 3, 910 3, 890 3, 860 3, 840 3, 820 3, 800 19 3, 780 3, 750 3, 730 3, 710 3, 690 3, 670 3, 650 3, 630 3, 610 3, 590 20 3, 570 3, 550 3, 530 3, 510 3, 500 3, 480 3, 460 3, 440 3, 420 3, 400 21 3, 390 3, 370 3, 350 3, 330 3, 320 3, 300 3, 280 3, 270 3, 250 3, 230 22 3, 220 3, 200 3, 190 3, 170 3, 150 3, 140 3, 120 3, 110 3, 090 3, 080 23 3, 060 3, 050 3, 030 3, 020 3, 000 2, 990 2, 980 2, 960 2, 950 2, 930 24 2, 920 2, 910 2, 890 2, 880 2, 870 2, 850 2, 840 2, 830 2, 810 2, 800 25 2, 790 2, 780 2, 760 2, 750 2, 740 2, 730 2, 710 2, 700 2, 690 2, 680 26 2, 670 2, 650 2, 640 2, 630 2. 620 2, 610 2, 600 2, 580 2, 570 2, 560 27 2, 550 2, 540 2, 530 2, 520 2, 510 2, 500 2, 490 2, 480 2, 470 2, 460 28 2, 440 2, 430 2, 420 2, 410 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 29 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 2, 290 2, 280 2, 270 2, 260 30 2, 250 2, 240 2, 230 2, 220 2, 220 2, 210 2, 200 2, 190 2, 180 2, 170 31 2, 160 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 2, 100 2, 100 2, 090 32 2, 080 2, 070 2, 060 2, 060 2, 050 2, 040 2, 030 2, 030 2, 020 2, 010 33 2, 000 1, 990 1, 990 1, 980 1, 970 1, 960 1, 960 1, 950 1, 940 1, 930 34 1, 930 1, 920 1, 910 1, 910 1, 900 1, 890 1, 880 1, 880 1, 870 1, 860 35 1, 860 1, 850 1, 840 1, 840 1, 830 1, 820 1, 820 1, 810 1, 800 1, 800 36 1, 790 1, 780 1, 780 1, 770 1, 760 1, 760 1, 750 1, 740 1, 740 1, 730 37 1, 730 1, 720 1, 710 1, 710 1, 700 1, 690 1, 690 1, 680 1, 680 1, 670 38 1, 660 1, 660 1, 650 1, 650 1, 640 1, 630 1, 630 1, 620 1, 620 1, 610 39 1, 610 1, 600 1, 590 1, 590 1, 580 1, 580 1, 570 1, 570 1, 560 1, 550 40 1, 550 1, 540 1, 540 1, 530 1, 530 1, 520 1, 520 1, 510 1, 510 1, 500 41 1, 500 1, 490 1, 480 1, 480 1, 470 1, 470 1, 460 1, 460 1, 450 1, 450 42 1, 440 1, 440 1, 430 1, 430 1, 420 1, 420 1, 410 1, 410 1, 400 1, 400 43 1, 390 1, 390 1, 340 1, 380 1, 380 1, 370 1, 370 1, 370 1, 360 1, 360 1, 350 44 1, 350 1, 340 1, 330 1, 330 1, 320 1, 320 1, 310 1, 310 1, 300 45 1, 300 1, 300 1, 290 1, 290 1, 280 1, 280 1, 270 1, 270 1, 260 1, 260 46 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 230 1, 230 1, 220 1, 220 47 1, 210 1, 210 1, 200 1, 200 1, 200 1, 190 1, 190 1, 180 1, 180 1, 170 14 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 6 minutes after release of balloon; altitude of balloon, 1,300 yards—Continued Degrees. _ Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 1, 170 1, 170 1, 160 1, 160 1, 150 1, 150 1, 150 1, 140 1, 100 1, 140 1, 130 49 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 1, 110 1, 100 1, 090 50 1, 090 1, 090 1, 080 1, 080 1, 080 1, 070 1, 070 1, 060 1, 060 1, 060 51 1, 050 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 1, 030 1, 020 1, 020 52 1, 020 1, 010 1, 010 1, 000 1, 000 1, 000 990 990 990 980 53 980 980 970 970 970 960 960 950 950 950 54 940 940 940 930 930 930 920 920 920 910 55 910 910 900 900 900 890 890 890 880 880 56 880 870 870 870 860 860 860 850 850 850 57 840 840 840 830 830 830 820 820 820 820 58 810 810 810 800 800 800 790 790 790 780 59 780 780 770 770 770 770 760 760 760 750 60 750 750 740 740 740 740 730 730 730 720 61 720 720 710 710 710 710 700 700 700 690 62 690 690 690 680 680 680 670 670 670 670 63 660 660 660 650 650 650 650 640 640 640 64 630 630 630 630 620 620 620 610 610 610 65 610 600 600 600 600 590 590 590 580 580 66 580 580 570 570 570 570 560 560 560 550 67 550 550 550 540 540 540 540 530 530 530 68 530 520 520 520 510 510 510 510 500 500 69 500 500 490 490 490 490 480 480 480 480 70 470 470 470 470 460 460 460 460 450 450 71 450 450 440 440 440 430 430 430 430 420 72 420 420 420 410 410 410 410 400 400 400 73 400 390 390 390 390 390 380 380 380 380 74 370 370 370 370 360 360 360 360 350 350 75 350 350 340 340 340 340 330 330 330 330 76 320 320 320 320 310 310 310 310 300 300 77 300 300 300 290 290 290 290 280 280 280 78 280 270 270 270 270 260 260 260 260 260 79 250 250 250 250 240 240 240 240 230 230 80 230 230 220 220 220 220 220 210 210 210 81 210 200 200 200 200 190 190 190 190 180 82 180 180 180 180 170 170 170 170 160 160 83 160 160 150 150 150 150 150 140 140 140 84 140 130 130 130 130 130 120 120 120 120 85 110 110 110 110 100 100 100 100 100 90 86 90 90 90 80 80 80 80 80 70 70 87 70 70 60 60 60 60 50 50 50 50 88 50 40 40 40 40 30 30 30 30 20 89 20 20 20 20 10 10 10 10 0 0 15 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 7 minutes after release of balloon; altitude of balloon, 1,500 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.1 O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 17, 140 16, 800 16, 480 16, 170 15, 870 15, 580 15, 300 15, 030 14, 770 14, 520 6 14, 270 14, 040 13, 810 13, 590 13, 370 13, 170 12, 960 12, 770 12, 580 12, 400 7 12, 220 12, 040 11, 870 11, 710 11, 550 11, 390 11, 240 11, 090 10, 950 10, 810 8 10, 670 10, 540 10, 410 10, 280 10, 160 10, 040 9, 920 9, 800 9, 690 9, 580 9 9, 470 9, 360 9, 260 9, 160 9, 060 8, 960 8, 870 8, 780 8, 680 8, 590 10 8, 510 8, 420 8, 340 8, 250 8, 170 8, 090 8, 020 7, 940 7, 860 7, 790 11 7, 720 7, 650 7, 580 7, 510 7, 440 7, 370 7, 310 7, 240 7, 180 7, 120 12 7, 070 7, 000 6, 940 6, 880 6, 820 6, 770 6, 710 6, 660 6, 600 6, 550 13 6, 500 6, 450 6, 400 6, 350 6, 300 6, 250 6, 200 6, 150 6, 110 6, 060 14 6, 020 5, 970 5, 930 5, 880 5, 840 5, 800 5, 760 5, 720 5, 680 5, 640 15 5, 600 5, 560 5, 520 5, 480 5, 450 5, 410 5, 370 5, 340 5, 300 5, 270 16 5, 230 5, 200 5, 160 5, 130 5, 100 5, 060 5, 030 5, 000 4, 970 4, 940 17 4, 910 4, 880 4, 850 4, 820 4, 790 4, 760 4, 730 4, 700 4, 670 4, 640 18 4, 620 4, 590 4, 560 4, 540 4, 510 4, 480 4, 460 4, 430 4, 410 4, 380 19 4, 360 4, 330 4, 310 4, 280 4, 260 4, 240 4, 210 4, 190 4, 170 4, 140 20 4, 120 4, 100 4, 080 4, 060 4, 030 4, 010 3, 990 3, 970 3, 950 3, 930 21 3, 910 3, 890 3, 870 3, 850 3, 830 3, 810 3, 790 3, 770 3, 750 3, 730 22 3, 710 3, 690 3, 680 3, 660 3, 640 3, 620 3, 600 3, 590 3, 570 3, 550 23 3, 530 3, 520 3, 500 3, 480 3, 470 3, 450 3, 430 3, 420 3, 400 3, 380 24 3, 370 3, 350 3, 340 3, 320 3, 310 3, 290 3, 280 3, 260 3, 250 3, 230 25 3, 220 3, 200 3, 190 3, 170 3, 160 3, 140 3, 130 3, 120 3, 100 3, 090 26 3, 080 3, 060 3, 050 3, 030 3, 020 3, 010 3, 000 2, 980 2, 970 2, 960 27 2, 940 2, 930 2, 920 2, 910 2, 890 2, 880 2, 870 2, 860 2, 850 2, 830 28 2, 820 2, 810 2, 800 2, 790 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 29 2, 710 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 2, 610 30 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 31 2, 500 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 410 32 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 2, 350 2, 340 2, 330 2, 320 33 2, 310 2, 300 2, 290 2, 280 2, 270 2, 270 2, 260 2, 250 2, 240 2, 230 34 2, 220 2, 220 2, 210 2, 200 2, 190 2, 180 2, 170 2, 170 2, 160 2, 150 35 2, 140 2, 130 2, 130 2, 120 2, 110 2, 100 2, 100 2, 090 2, 080 2, 070 36 2, 060 2, 060 2, 050 2, 040 2, 030 2, 030 2, 020 2, 010 2, 010 2, 000 37 1, 990 1, 980 1, 980 1, 970 1, 960 1, 950 1, 950 1, 940 1, 930 1, 930 38 1, 920 1, 910 1, 910 1, 900 1, 890 1, 890 1, 880 1, 870 1, 870 1, 860 39 1, 850 1, 850 1, 840 1, 830 1, 830 1, 820 1, 810 1, 810 1, 800 1, 790 40 1, 790 1, 780 1, 770 1, 770 1, 760 1, 760 1, 750 1, 740 1, 740 1, 730 41 1, 730 1, 720 1, 710 1, 710 1, 700 1, 700 1, 690 1, 680 1, 680 1, 670 42 1, 670 1, 660 1, 650 1, 650 1, 640 1, 640 1, 630 1, 630 1, 620 1, 610 43 1, 610 1, 600 1, 600 1, 590 1, 590 1, 580 1, 580 1, 570 1, 560 1, 560 44 1, 550 1, 550 1, 540 1, 540 1, 530 1, 530 1, 520 1, 520 1, 510 1, 510 45 1, 500 1, 490 1, 490 1, 480 1, 480 1, 470 1, 470 1, 460 1, 460 1, 450 46 1, 450 1, 440 1, 440 1, 430 1, 430 1, 420 1, 420 1, 410 1, 410 1, 400 47.—J 1, 400 1, 390 1, 390 1, 380 1, 380 1, 370 1, 370 1, 360 1, 360 1, 360 16 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 7 minutes after release of balloon; altitude of balloon, 1,500 yards—Continued Degrees-. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.1 0.2 0.3 0.4 O.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 1, 350 1, 350 1, 340 1, 340 1, 330 1, 330 1, 320 1, 320 1, 310 1, 310 49 1, 300 1, 300 1, 290 1, 290 1, 290 1, 280 1, 280 1, 270 1, 270 1, 260 50 1, 260 1, 210 1, 250 1, 250 1, 250 1, 240 1, 240 1, 230 1, 230 1, 220 1, 220 51 1, 210 1, 210 1, 200 1, 200 1, 190 1, 190 1, 180 1. 180 1, 180 52 1, 170 1, 170 1, 160 1, 160 1, 160 1, 150 1, 150 1, 140 1, 140 1, 130 53 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 1, 110 1, 100 1, 100 1, 090 54 1, 090 1, 090 1, 080 1, 080 1, 070 1, 070 1, 070 1, 060 1, 060 1, 050 55 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 1, 030 1, 020 1,020 1, 020 56 1, 010 1, 010 1, 000 1, 000 1, 000 990 990 990 980 980 57 970 970 970 960 960 960 950 950 940 940 58 940 930 930 930 920 920 920 910 910 900 59 900 900 890 890 890 880 880 880 870 870 60 870 860 860 860 850 850 850 840 840 830 61 830 830 820 820 820 810 810 810 800 800 62 800 790 790 790 780 780 780 770 770 770 63 760 760 760 750 750 750 740 740 740 730 64 730 730 730 720 720 720 710 710 710 700 65 700 700 690 690 690 680 680 680 670 670 66 670 660 660 660 660 650 650 650 640 640 67 640 630 630 630 620 620 620 620 610 610 68 610 600 600 600 590 590 590 580 580 580 69 580 570 570 570 560 560 560 550 550 550 70 550 540 540 540 530 530 530 530 520 520 71 520 510 510 510 500 500 500 500 490 490 72 490 480 480 480 480 470 470 470 460 460 73 460 460 450 450 450 440 440 440 440 430 74 430 430 420 420 420 420 410 410 410 400 75 400 400 400 390 390 390 390 380 380 380 76 370 370 370 370 360 360 360 350 350 350 77 350 340 340 340 340 330 330 330 320 320 78 320 320 310 310 310 310 300 300 300 290 79 290 290 290 280 280 280 280 270 270 270 80 260 260 260 260 250 250 250 250 240 240 81 240 230 230 230 230 220 220 220 220 210 82 210 210 210 200 200 200 190 190 190 190 83 180 180 180 180 170 170 170 170 160 160 84 160 150 150 150 150 140 140 140 140 130 85 130 130 130 120 120 120 120 110 110 110 86 100 100 100 100 90 90 90 90 80 80 87 80 80 70 70 70 70 60 60 60 60 88 50 50 50 40 40 40 40 30 30 30 89 30 20 20 20 20 10 10 10 10 0 312956°—41---3 17 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 8 minutes after release of balloon; altitude of balloon, 1,700 yards Degrees. _ Elevation angle of balloon in degrees and tenths of a degree 0.0 O.1 O.3 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 19, 430 19, 040 18, 680 18, 330 17, 990 17, 660 17, 340 17, 030 16, 740 16, 450 6 16, 170 15, 910 15, 650 15, 400 15, 160 14, 920 14, 690 14, 470 14, 260 14, 050 7 13, 850 13, 650 13, 460 13, 270 13, 090 12, 910 12, 740 12, 570 12, 410 12, 250 8 12, 100 11, 940 11, 800 11, 650 11, 510 11, 380 11, 240 11, no 10, 980 10, 860 9 10, 730 10, 610 10, 500 10, 380 10, 270 10, 160 10, 050 9, 950 9, 840 9, 740 10 9, 640 9, 540 9, 450 9, 350 9, 260 9, 170 9, 080 9, 000 8, 910 8, 830 11 8, 750 8, 660 8, 590 8, 510 8, 430 8, 360 8, 280 8, 210 8, 140 8, 070 12 8, 000 7, 930 7, 860 7, 800 7, 730 7, 670 7, 610 7, 540 7, 480 7, 420 13 7, 360 7, 310 7, 250 7, 190 7, 140 7, 080 7, 030 6, 970 6, 920 6, 870 14 6, 820 6, 770 6, 720 6, 670 6, 620 6, 570 6, 530 6, 480 6, 430 6, 390 15 6, 340 6, 300 6, 260 6, 210 6, 170 6, 130 6, 090 6, 050 6, 010 5, 970 16 5, 930 5, 890 5, 850 5, 810 5, 780 5, 740 5, 700 5, 670 5, 630 5, 600 17 5, 560 5, 530 5, 490 5, 460 5, 420 5, 390 5, 360 5, 330 5, 290 5, 260 18 5, 230 5, 200 5, 170 5, 140 5, 110 5, 080 5, 050 5, 020 4, 990 4, 970 19 4, 940 4, 910 4, 880 4, 850 4, 830 4, 800 4, 770 4, 750 4, 720 4, 700 20 4, 670 4, 650 4, 620 4, 600 4, 570 4, 550 4, 520 4, 500 4, 480 4, 450 21 4, 430 4, 410 4, 380 4, 360 4, 340 4, 320 4, 290 4, 270 4, 250 4, 230 22 4, 210 4, 190 4, 170 4, 150 4, 120 4, 100 4, 080 4, 060 4, 040 4, 020 23 4, 010 3, 990 3, 970 3, 950 3, 930 3, 910 3, 890 3, 870 3, 850 3, 840 24 3, 820 3, 800 3, 780 3, 770 3, 750 3, 730 3, 710 3, 700 3, 680 3, 660 25 3, 650 3, 630 3, 610 3, 600 3, 580 3, 560 3, 550 3, 530 3, 520 3, 500 26 3, 490 3, 470 3, 450 3, 440 3, 420 3, 410 3, 390 3, 380 3, 370 3, 350 27 3, 340 3, 320 3, 310 3, 290 3, 280 3, 270 3, 250 3, 240 3, 220 3, 210 28 3, 200 3, 180 3, 170 3, 160 3, 140 3, 130 3, 120 3, 110 3, 090 3, 080 29 3, 070 3, 050 3, 040 3, 030 3, 020 3, 000 2, 990 2, 980 2, 970 2, 960 30 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 870 2, 860 2, 850 2, 840 31 2, 830 2, 820 2, 810 2, 800 2, 790 2, 770 2, 760 2, 750 2, 740 2, 730 32 2, 720 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 33 2, 620 2, 610 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 34 2, 520 2, 510 2, 500 2, 490 2, 480 2, 470 2, 460 2, 460 2, 450 2, 440 35 2, 430 2, 420 2, 410 2, 400 2, 390 2, 380 2, 370 2, 370 2, 360 2, 350 36 2, 340 2, 330 2, 320 2, 310 2, 310 2, 300 2, 290 2, 280 2, 270 2, 260 37 2, 260 2, 250 2, 240 2, 230 2, 220 2, 220 2, 210 2, 200 2, 190 2, 180 38 2, 180 2, 170 2, 160 2, 150 2, 140 2, 140 2, 130 2, 120 2, 110 2, no 39 2, 100 2, 090 2, 080 2, 080 2, 070 2, 060 2, 050 2, 050 2, 040 2, 030 40 2, 030 2, 020 2, 010 2, 000 2, 000 1, 990 1, 980 1, 980 1, 970 1, 960 41 1, 960 1, 950 1, 940 1, 940 1, 930 1, 920 1, 910 1, 910 1, 900 1, 890 42 1, 890 1, 880 1, 870 1, 870 1, 860 1, 860 1, 850 1, 840 1, 840 1, 830 43 1, 820 1, 820 1, 810 1, 800 1, 800 1, 790 1, 790 1, 780 1, 770 1, 770 44 1, 760 1, 750 1, 750 1, 740 1, 740 1, 730 1, 720 1, 720 1, 710 1, 710 45 1, 700 1, 690 1, 690 1, 680 1, 680 1, 670 1, 660 1, 660 1, 650 1, 650 46 1, 640 1, 590 1, 640 1, 630 1, 620 1, 620 1, 610 1, 610 1, 600 1, 600 1, 590 47 1, 580 1, 570 1, 570 1, 560 1, 560 1, 550 1, 550 1, 540 1, 540 18 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 8 minutes after release of balloon; altitude of balloon, 1,700 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.3 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 1, 530 1, 530 1, 520 1, 510 1, 510 1, 500 1, 500 1, 490 1, 490 1, 480 49 1, 480 1, 470 1, 470 1, 460 1, 460 1, 450 1, 450 1, 440 1, 440 1, 430 50 1, 430 1, 420 1, 420 1, 410 1, 410 1, 400 1, 400 1, 390 1, 390 1, 380 51 1, 380 1, 370 1, 370 1, 360 1, 360 1, 350 1, 350 1, 340 1, 340 1, 330 52 1, 330 1, 320 1, 320 1, 310 1, 310 1, 300 1, 300 1, 300 1, 290 1, 290 53 1, 280 1, 280 1, 270 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 54 1, 240 1, 230 1, 230 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 55 1, 190 1, 190 1, 180 1, 180 1, 170 1, 170 1, 160 1, 160 1, 160 1, 150 56 1, 150 1, 140 1, 140 1, 130 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 57 1, 100 1, 100 1, 100 1, 090 1, 090 1, 080 1, 080 1, 070 1, 070 1, 070 58 1, 060 1, 060 1, 050 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 1, 030 59 1, 020 1, 020 1, 010 1, 010 1, 010 1, 000 1, 000 990 990 990 60 980 980 970 970 970 960 960 950 950 950 61 940 940 930 930 930 920 920 920 910 910 62 900 900 900 890 890 890 880 880 870 870 63 870 860 860 850 850 850 840 840 840 830 64 830 830 820 820 810 810 810 800 800 800 65 790 790 790 780 780 770 770 770 760 760 66 760 750 750 750 740 740 740 730 730 730 67 720 720 710 710 710 700 700 700 690 690 68 690 680 680 680 670 670 670 660 660 660 69 650 650 650 640 640 640 630 630 630 620 70 620 620 610 610 610 600 600 600 590 590 71 590 580 580 580 570 570 570 560 560 560 72 550 550 550 540 540 540 530 530 530 520 73 520 520 510 510 510 500 500 500 490 490 74 490 480 480 480 470 470 470 470 460 460 75 460 450 450 450 440 440 440 430 430 430 76 420 420 420 410 410 410 400 400 400 400 77 390 390 390 380 380 380 370 370 370 360 78 360 360 360 350 350 350 340 340 340 330 79 330 330 320 320 320 320 310 310 310 300 80 300 300 290 290 290 280 280 280 280 270 81 270 270 260 260 260 250 250 250 240 240 82 240 240 230 230 230 220 220 220 210 210 83 210 210 200 200 200 190 190 190 180 180 84 180 180 170 170 170 160 160 160 150 150 85 150 150 140 140 140 130 130 130 120 120 86 120 120 110 110 110 100 100 100 100 90 87 90 90 80 80 80 70 70 70 70 60 88 60 60 50 50 50 40 40 40 40 30 89 30 30 20 20 20 10 10 10 10 0 19 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 9 minutes after release of balloon; altitude of balloon, 1,900 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.3 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 21, 720 21, 280 20, 880 20, 480 20, 100 19, 740 19, 380 19, 040 18, 710 18, 390 6 18, 080 17, 780 17, 490 17, 210 16, 940 16, 680 16, 420 16, 170 15, 930 15, 700 7 15, 470 15, 250 15, 040 14, 830 14, 630 14, 430 14, 240 14, 050 13, 870 13, 690 8 13, 520 13, 350 13, 190 13, 020 12, 870 12, 710 12, 560 12, 420 12, 270 12, 130 9 12, 000 11, 860 11, 730 11, 600 11, 480 11, 350 11, 230 11, 120 11, 000 10, 890 10 10, 780 10, 670 10, 560 10, 450 10, 350 10, 250 10, 150 10, 060 9, 960 9, 870 11 9, 770 9, 680 9, 600 9, 510 9, 420 9, 340 9, 260 9, 170 9, 090 9, 020 12 8, 940 8, 860 8, 790 8, 710 8, 640 8, 570 8, 500 8, 430 8, 360 8, 300 13 8, 230 8, 160 8, 100 8, 040 7, 980 7, 910 7, 850 7, 790 7, 740 7, 680 14 7, 620 7, 560 7, 510 7, 450 7, 400 7, 350 7, 290 7, 240 7, 190 7, 140 15 7, 090 7, 040 6, 990 6, 950 6, 900 6, 850 6, 810 6, 760 6, 710 6, 670 16 6, 630 6, 580 6, 540 6, 500 6, 460 6, 410 6, 370 6, 330 6, 290 6, 250 17 6, 210 6, 180 6, 140 6, 100 6, 060 6, 030 5, 990 5, 950 5, 920 5, 880 18 5, 850 5, 810 5, 780 5, 750 5, 710 5, 680 5, 650 5, 610 5, 580 5, 550 19 5, 520 5, 490 5, 460 5, 430 5, 400 5, 370 5, 340 5, 310 5, 280 5, 250 20 5, 220 5, 190 5, 160 5, 140 5, 110 5, 080 5, 050 5, 030 5, 000 4, 980 21 4, 950 4, 920 4, 900 4, 870 4, 850 4, 820 4, 800 4, 770 4, 750 4, 730 22 4, 700 4, 680 4, 660 4, 630 4, 610 4, 590 4, 560 4, 540 4, 520 4, 500 23 4, 480 4, 450 4, 430 4, 410 4, 390 4, 370 4, 350 4, 330 4, 310 4, 290 24 4, 270 4, 250 4, 230 4, 210 4, 190 4, 170 4, 150 4, 130 4, 110 4, 090 25 4, 070 4, 060 4, 040 4, 020 4, 000 3, 980 3, 970 3, 950 3, 930 3, 910 26 3, 900 3, 880 3, 860 3, 840 3, 830 3, 810 3, 790 3, 780 3, 760 3, 750 27 3, 730 3, 710 3, 700 3, 680 3, 670 3, 650 3, 630 3, 620 3, 600 3, 590 28 3, 570 3, 560 3, 540 3, 530 3, 510 3, 500 3, 480 3, 470 3, 460 3, 440 29 3, 430 3, 410 3, 400 3, 390 3, 370 3, 360 3, 340 3, 330 3, 320 3, 300 30 3, 290 3, 280 3, 260 3, 250 3, 240 3, 230 3, 210 3, 200 3, 190 3, 170 31 3, 160 3, 150 3, 140 3, 120 3, 110 3, 100 3, 090 3, 080 3, 060 3, 050 32 3, 040 3, 030 3, 020 3, 010 2, 990 2, 980 2, 970 2, 960 2, 950 2, 940 33 2, 930 2, 910 2, 900 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 34 2, 820 2, 810 2, 800 2, 790 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 35 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 36 2, 620 2, 610 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 37 2, 520 2, 510 2, 500 2, 490 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 38 2, 430 2, 420 2, 410 2, 410 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 39 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 2, 300 2, 290 2, 280 2, 270 40 2, 260 2, 260 2, 250 2, 240 2, 230 2, 220 2, 220 2, 210 2, 200 2, 190 41 2, 190 2, 180 2, 170 2, 160 2, 160 2, 150 2, 140 2, 130 2, 120 2, 120 42 2, 110 2, 100 2, 100 2, 090 2, 080 2, 070 2, 070 2, 060 2, 050 2, 040 43 2, 040 2, 030 2, 020 2, 020 2, 010 2, 000 2, 000 1, 990 1, 980 1, 970 44 1, 970 1, 960 1, 950 1, 950 1, 940 1, 930 1, 930 1, 920 1, 910 1, 910 45 1, 900 1, 890 1, 890 1, 880 1, 870 1, 870 1, 860 1, 850 1, 850 1, 840 46 1, 830 1, 830 1, 820 1, 820 1, 810 1, 800 1, 800 1, 790 1, 780 1, 780 47 1, 770 1, 770 1, 760 1, 750 1, 750 1, 740 1, 730 1, 730 1, 720 1, 720 20 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 9 minutes after release of balloon; altitude of balloon, 1,900 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 1, 710 1, 700 1, 700 1, 690 1, 690 1, 680 1, 680 1, 670 1, 660 1, 660 49 1, 650 1, 650 1, 640 1, 630 1, 630 1, 620 1, 620 1, 610 1, 610 1, 600 50 1, 590 1, 590 1, 580 1, 580 1, 570 1, 570 1, 560 1, 560 1, 550 1, 540 51 1, 540 1, 530 1, 530 1, 520 1, 520 1, 510 1, 510 1, 500 1, 500 1, 490 52 1, 480 1, 480 1, 470 1, 470 1, 460 1, 460 1, 450 1, 450 1, 440 1, 440 53 1, 430 1, 430 1, 420 1, 420 1, 410 1, 410 1, 400 1, 400 1, 390 1, 390 54 1, 380 1, 380 1, 370 1, 370 1, 360 1, 360 1, 350 1, 350 1, 340 1, 340 55 1, 330 1, 330 1, 320 1, 320 1, 310 1, 310 1, 300 1, 300 1, 290 1, 290 56 1, 280 1, 280 1, 270 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 57 1, 230 1, 230 1, 220 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 58 1, 190 1, 180 1, 180 1, 170 1, 170 1, 160 1, 160 1, 160 1, 150 1, 150 59 1, 140 1, 140 1, 130 1, 130 1, 120 1, 120 1, 110 1, 110 1, 110 1, 100 60 1, 100 1, 090 1, 090 1, 080 1, 080 1, 080 1, 070 1, 070 1, 060 1, 060 61 1, 050 1, 050 1, 040 1, 040 1, 040 1, 030 1, 030 1, 020 1, 020 1, 010 62 1, 010 1, 010 1, 000 1, 000 990 990 980 980 980 970 63 970 960 960 960 950 950 940 940 930 930 64 930 920 920 910 910 910 900 900 890 890 65 890 880 880 870 870 870 860 860 850 850 66 850 840 840 830 830 830 820 820 810 810 67 810 800 800 790 790 790 780 780 780 770 68 770 760 760 760 750 750 740 740 740 730 69 730 730 720 720 710 710 710 700 700 700 70 690 690 680 680 680 670 670 670 660 660 71 650 650 650 640 640 640 630 630 620 620 72 620 610 610 610 600 600 600 590 590 580 73 580 580 570 570 570 560 560 560 550 550 74 540 540 540 530 530 530 520 520 520 510 75 510 510 500 500 490 490 490 480 480 480 76 470 470 470 460 460 460 450 450 450 440 77 440 440 430 430 420 420 420 410 410 410 78 400 400 400 390 390 390 380 380 380 370 79 370 370 360 360 360 350 350 350 340 340 80 330 330 330 320 320 320 310 310 310 300 81 300 300 290 290 290 280 280 280 270 270 82 270 260 260 260 250 250 250 240 240 240 83 230 230 230 220 220 220 210 210 210 200 84 200 200 190 190 190 180 180 180 170 170 85 170 160 160 160 150 150 150 140 140 140 86 130 130 130 120 120 120 110 110 110 100 87 100 100 90 90 90 80 80 80 70 70 88 70 60 60 60 50 50 50 40 40 40 89 30 30 30 20 20 20 10 10 10 0 21 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 10 minutes after release of balloon; altitude of balloon, 2,100 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 _ _ 24, 000 23, 520 23, 080 22, 640 22, 220 21, 820 21, 420 21, 040 20, 670 20, 320 6 19, 980 19, 650 19; 330 19, 020 18, 720 18, 430 18, 150 17, 880 17, 610 17; 350 7 17, 100 16; 860 16, 620 16, 390 16, 170 15, 950 15, 740 15, 530 15, 330 15, 130 8 14, 940 14, 760 14, 570 14, 400 14, 220 14, 050 13, 890 13, 720 13, 570 13, 410 9 13, 260 13; 110 12, 970 12, 820 12, 690 12, 550 12, 420 12, 290 12; 160 12, 030 10 11, 910 11, 790 11, 670 11, 560 11, 440 11, 330 11, 220 11, 110 11, 010 10, 910 11 10, 800 10, 700 10, 610 10, 510 10, 410 10, 320 10, 230 10, 140 10, 050 9, 970 12 9, 880 9, 800 9, 710 9, 630 9, 550 9, 470 9, 390 9, 320 9, 240 9, 170 13 9, 100 9, 020 8, 950 8, 880 8, 810 8, 750 8, 680 8, 610 8, 550 8, 490 14 8, 420 8, 360 8, 300 8, 240 8, 180 8, 120 8, 060 8, 000 7, 950 7, 890 15 7, 840 7, 780 7, 730 7, 680 7, 620 7, 570 7, 520 7, 470 7, 420 7, 370 16 7, 320 7, 280 7, 230 7, 180 7, 140 7, 090 7, 040 7, 000 6, 960 6, 910 17 6, 870 6, 830 6, 780 6, 740 6, 700 6, 660 6, 620 6, 580 6, 540 6, 500 18 6, 460 6, 420 6, 390 6, 350 6, 310 6, 280 6, 240 6, 200 6, 170 6, 130 19 6, 100 6, 060 6, 030 6, 000 5, 960 5, 930 5, 900 5, 870 5, 830 5, 800 20 5, 770 5,740 5, 710 5, 680 5, 650 5, 620 5, 590 5, 560 5, 530 5, 500 21 5, 470 5, 440 5, 410 5, 390 5, 360 5, 330 5, 300 5, 280 5, 250 5, 220 22 5, 200 5, 170 5, 150 5, 120 5, 100 5, 070 5, 040 5, 020 5, 000 4, 970 23 4, 950 4, 920 4, 900 4, 880 4, 850 4, 830 4, 810 4, 780 4, 760 4, 740 24 4, 720 4, 690 4, 670 4, 650 4, 630 4, 610 4, 590 4, 570 4, 540 4, 520 25 4, 500 4, 480 4, 460 4, 440 4, 420 4, 400 4, 380 4, 360 4, 340 4, 320 26 4, 310 4, 290 4, 270 4, 250 4, 230 4, 210 4, 190 4, 180 4, 160 4, 140 27 4, 120 4, 100 4, 090 4, 070 4, 050 4, 030 4, 020 4, 000 3, 980 3, 970 28 3, 950 3, 930 3, 920 3, 900 3, 880 3, 870 3, 850 3, 840 3, 820 3, 800 29 3, 790 3, 770 3, 760 3, 740 3, 730 3, 710 3, 700 3, 680 3, 670 3, 650 30 3, 640 3, 620 3, 610 3, 590 3, 580 3, 570 3, 550 3, 540 3, 520 3, 510 31 3, 500 3, 480 3, 470 3, 450 3, 440 3, 430 3, 410 3, 400 3, 390 3, 370 32 3, 360 3, 350 3, 330 3, 320 3, 310 3, 300 3, 280 3, 270 3, 260 3, 250 33 3, 230 3, 220 3, 210 3, 200 3, 180 3, 170 3, 160 3, 150 3, 140 3, 130 34 3, 110 3, 100 3, 090 3, 080 3, 070 3, 060 3, 040 3, 030 3, 020 3, 010 35 3, 000 2, 990 2, 980 2, 970 2, 950 2, 940 2, 930 2, 920 2, 910 2, 900 36 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 2, 800 37 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 2, 700 38 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 2, 610 2, 600 39 2, 590 2, 580 2, 570 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 40 2, 500 2, 490 2, 480 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 41 2, 420 2, 410 2, 400 2, 390 2, 380 2, 370 2, 370 2, 360 2, 350 2, 340 42 2, 330 2, 320 2, 320 2, 310 2, 300 2, 290 2, 280 2, 280 2, 270 2, 260 43 2, 250 2, 240 2, 240 2, 230 2, 220 2, 210 2, 210 2, 200 2, 190 2, 180 44 2, 170 2, 170 2, 160 2, 150 2, 140 2, 140 2, 130 2, 120 2, 110 2, 110 45 2, 100 2, 090 2, 090 2, 080 2, 070 2, 060 2, 060 2, 050 2, 040 2, 040 46 2, 030 2, 020 2, 010 2, 010 2, 000 1, 990 1, 990 1, 980 1, 970 1, 970 47 1, 960 1, 950 1, 940 1, 940 1, 930 1, 920 1, 920 1, 910 1, 900 1, 900 22 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 10 minutes after release of balloon; altitude of balloon, 2,100 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 0.1 0.3 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 49 1, 890 1, 830 1, 880 1, 820 1, 880 1, 810 1, 870 1, 810 1, 860 1, 800 1, 860 1, 790 1, 850 1, 790 1, 840 1, 780 1, 840 1, 770 1, 830 1, 770 50 1, 760 1, 760 1, 750 1, 740 1, 740 1, 730 1, 720 1, 720 1, 710 1, 710 51 1, 700 1, 690 1, 690 1, 680 1, 680 1, 670 1, 660 1, 660 1, 650 1, 650 52 1, 640 1, 630 1, 630 1, 620 1, 620 1, 610 1, 610 1, 600 1, 590 1, 590 53 1, 580 1, 580 1, 570 1, 570 1, 560 1, 550 1, 550 1, 540 1, 540 1, 530 54 1, 530 1, 520 1, 510 1, 510 1, 500 1, 500 1, 490 1, 490 1, 480 1, 480 55 1, 470 1, 460 1, 460 1, 450 1, 450 1, 440 1, 440 1, 430 1, 430 1, 420 56 1, 420 1, 410 1, 410 1, 400 1, 400 1, 390 1, 380 1, 380 1, 370 1, 370 57 1, 360 1, 360 1, 350 1, 350 1, 340 1, 340 1, 330 1, 330 1, 320 1, 320 58 1, 310 1, 310 1, 300 1, 300 1, 290 1, 290 1, 280 1, 280 1, 270 1, 270 59 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 230 1, 220 1, 220 60 1, 210 1, 210 1, 200 1, 200 1, 190 1, 190 1, 180 1, 180 1, 170 1, 170 61 1, 160 1, 160 1, 150 1, 150 1, 140 1, 140 1, 140 1, 130 1, 130 1, 120 62 1, 120 1, 110 1, 110 1, 100 1, 100 1, 090 1, 090 1, 080 1, 080 1, 070 63 1, 070 1, 070 1, 060 1, 060 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 64 1, 020 1, 020 1, 020 1, 010 1, 010 1, 000 1, 000 990 990 980 65 980 970 970 970 960 960 950 950 940 940 66 930 930 930 920 920 910 910 900 900 900 67 890 890 880 880 870 870 870 860 860 850 68 850 840 840 840 830 830 820 820 810 810 69 810 800 800 790 790 790 780 780 770 770 70 760 760 760 750 750 740 740 740 730 730 71 720 720 710 710 710 700 700 690 690 690 72 680 680 670 670 670 660 660 650 650 650 73 640 640 630 630 630 620 620 610 610 610 74 600 600 590 590 590 580 580 570 570 570 75 560 560 550 550 550 540 540 540 530 530 76 520 520 520 510 510 500 500 500 490 490 77 480 480 480 470 470 470 460 460 450 450 78 450 440 440 430 430 430 420 420 420 410 79 410 400 400 400 390 390 390 380 380 370 80 370 370 360 360 360 350 350 340 340 340 81 330 330 330 320 320 310 310 310 300 300 82 300 290 290 280 280 280 270 270 270 260 83 260 250 250 250 240 240 240 230 230 220 84 220 220 210 210 210 200 200 190 190 190 85 180 180 180 170 170 170 160 160 150 150 86 150 140 140 140 130 130 120 120 120 110 87 110 110 100 100 100 90 90 80 80 80 88 70 70 70 60 60 60 50 50 40 40 89 40 30 30 30 20 20 10 10 10 0 23 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 11 minutes after release of balloon; altitude of balloon, 2,300 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.3 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 26, 290 25, 760 25, 280 24, 790 24, 330 23, 900 23, 460 23, 050 22, 640 22, 260 6 21, 880 21, 520 21, 170 20, 830 20, 500 20, 190 19, 880 19, 580 19, 290 19, 010 7 18, 730 18, 470 18, 210 17, 950 17, 710 17, 470 17, 240 17, 010 16, 790 16, 580 8 16, 370 16, 160 15, 960 15, 770 15, 580 15, 390 15, 210 15, 030 14, 860 14, 690 9 14, 520 14, 360 14, 200 14, 050 13, 890 13, 740 13, 600 13, 460 13, 320 13, 180 10 13, 040 12, 910 12, 780 12, 660 12, 530 12, 410 12, 290 12, 170 12, 060 11, 940 11 11, 830 11, 720 11, 620 11, 510 11, 410 11, 300 11, 200 11, 110 11, 010 10, 910 12 10, 820 10, 730 10, 640 10, 550 10, 460 10, 370 10, 290 10, 210 10, 120 10, 040 13 9, 960 9, 880 9, 810 9, 730 9, 650 9, 580 9, 510 9, 440 9, 360 9, 290 14 9, 220 9, 160 9, 090 9, 020 8, 960 8, 890 8, 830 8, 770 8, 710 8, 640 15 8, 580 8, 520 8, 470 8, 410 8, 350 8, 290 8, 240 8, 180 8, 130 8, 070 16 8, 020 7, 970 7, 920 7, 870 7, 810 7, 760 7, 720 7, 670 7, 620 7, 570 17 7, 520 7, 480 7, 430 7, 380 7, 340 7, 290 7, 250 7, 210 7, 160 7, 120 18 7, 080 7, 040 7, 000 6, 950 6, 910 6, 870 6, 830 6, 800 6, 760 6, 720 19 6, 680 6, 640 6, 600 6, 570 6, 530 6, 490 6, 460 6, 420 6, 390 6, 350 20 6, 320 6, 280 6, 250 6, 220 6, 180 6, 150 6, 120 6, 090 6, 050 6, 020 21 5, 990 5, 960 5, 930 5, 900 5, 870 5, 840 5, 810 5, 780 5, 750 5, 720 22 5, 690 5, 660 5, 640 5, 610 5, 580 5, 550 5, 530 5, 500 5, 470 5, 440 23 5, 420 5, 390 5, 370 5, 340 5, 320 5, 290 5, 260 5, 240 5, 210 5, 190 24 5, 170 5, 140 5, 120 5, 090 5, 070 5, 050 5, 020 5, 000 4, 980 4, 950 25 4, 930 4, 910 4, 890 4, 870 4, 840 4, 820 4, 800 4, 780 4, 760 4, 740 26 4, 720 4, 690 4, 670 4, 650 4, 630 4, 610 4, 590 4, 570 4, 550 4, 530 27 4, 510 4, 490 4, 480 4, 460 4, 440 4, 420 4, 400 4, 380 4, 360 4, 340 28 4, 330 4, 310 4, 290 4, 270 4, 250 4, 240 4, 220 4, 200 4, 180 4, 170 29 4, 150 4, 130 4, 120 4, 100 4, 080 4, 070 4, 050 4, 030 4, 020 4, 000 30 3, 980 3, 970 3, 950 3, 940 3, 920 3, 900 3, 890 3, 870 3, 860 3, 840 31 3, 830 3, 810 3, 800 3, 780 3, 770 3, 750 3, 740 3, 720 3, 710 3, 700 32 3, 680 3, 670 3, 650 3, 640 3, 620 3, 610 3, 600 3, 580 3, 570 3, 560 33 3, 540 3, 530 3, 510 3, 500 3, 490 3, 470 3, 460 3, 450 3, 440 3, 420 34 3, 410 3, 400 3, 380 3, 370 3, 360 3, 350 3, 330 3, 320 3, 310 3, 300 35 3, 280 3, 270 3, 260 3, 250 3, 240 3, 220 3, 210 3, 200 3, 190 3, 180 36 3, 170 3, 150 3, 140 3, 130 3, 120 3, 110 3, 100 3, 090 3, 070 3, 060 37 3, 050 3, 040 3, 030 3, 020 3, 010 3, 000 2, 990 2, 980 2, 970 2, 950 38 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 880 2, 870 2, 860 2, 850 39 2, 840 2, 830 2, 820 2, 810 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 40 2, 740 2, 730 2, 720 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 660 41 2, 650 2, 640 2, 630 2, 620 2, 610 2, 600 2, 590 2, 580 2, 570 2, 560 42 2, 550 2, 550 2, 540 2, 530 2, 520 2, 510 2, 500 2, 490 2, 480 2, 480 43 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 420 2, 410 2, 400 2, 390 44 2, 380 2, 370 2, 370 2, 360 2, 350 2, 340 2, 330 2, 320 2, 320 2, 310 45 2, 300 2, 290 2, 280 2, 280 2, 270 2, 260 2, 250 2, 240 2, 240 2, 230 46 2, 220 2, 210 2, 210 2, 200 2, 190 2, 180 2, 180 2, 170 2, 160 2, 150 47 2, 140 2, 140 2, 130 2, 120 2, 110 2, 110 2, 100 2, 090 2, 090 2, 080 21 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 11 minutes after release of balloon; altitude of balloon, 2,300 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 2, 070 2, 060 2, 060 2, 050 2, 040 2, 030 2, 030 2, 020 2, 010 2, 010 49 2, 000 1, 990 1, 990 1, 980 1, 970 1, 960 1, 960 1, 950 1, 940 1, 940 50 1, 930 1, 920 1, 920 1, 910 1, 900 1, 900 1, 890 1, 880 1, 880 1, 870 51 1, 860 1, 860 1, 850 1, 840 1, 840 1, 830 1, 820 1, 820 1, 810 1, 800 52 1, 800 1, 790 1, 780 1, 780 1, 770 1, 760 1, 760 1, 750 1, 750 1, 740 53 1, 730 1, 730 1, 720 1, 710 1, 710 1, 700 1, 700 1, 690 1, 680 1, 680 54 1, 670 1, 660 1, 660 1, 650 1, 650 1, 640 1, 630 1, 630 1, 620 1, 620 55 1, 610 1, 600 1, 600 1, 590 1, 590 1, 580 1, 570 1, 570 1, 560 1, 560 56 1, 550 1, 550 1, 540 1, 530 1, 530 1, 520 1, 520 1, 510 1, 510 1, 500 57 1, 490 1, 490 1, 480 1, 480 1, 470 1, 470 1, 460 1, 450 1, 450 1, 440 58 1, 440 1, 430 1, 430 1, 420 1, 410 1, 410 1, 400 1, 400 1, 390 1, 390 59 1, 380 1, 380 1, 370 1, 370 1, 360 1, 350 1, 350 1, 340 1, 340 1, 330 60 1, 330 1, 320 1, 320 1, 310 1, 310 1, 300 1, 300 1, 290 1, 290 1, 280 61 1, 270 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 230 62 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 1, 190 1, 180 1, 180 63 1, 170 1, 170 1, 160 1, 160 1, 150 1, 150 1, 140 1, 140 1, 130 1, 130 64 1, 120 1, 120 1, 110 1, 110 1, 100 1, 100 1, 090 1, 090 1, 080 1, 080 65 1, 070 1, 070 1, 060 1, 060 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 66 1, 020 1, 020 1, 010 1, 010 1, 000 1, 000 1, 000 990 990 980 67 980 970 970 960 960 950 950 940 940 930 68 930 920 920 920 910 910 900 900 890 890 69 880 880 870 870 860 860 860 850 850 840 70 840 830 830 820 820 810 810 810 800 800 71 790 790 780 780 770 770 770 760 760 750 72 750 740 740 730 730 730 720 720 710 710 73 700 700 690 690 690 680 680 670 670 660 74 660 660 650 650 640 640 630 630 620 620 75 620 610 610 600 600 590 590 590 580 580 76 570 570 560 560 560 550 550 540 540 540 77 530 530 520 520 510 510 510 500 500 490 78 490 480 480 480 470 470 460 460 460 450 79 450 440 440 430 430 430 420 420 410 410 80 410 400 400 390 390 380 380 380 370 370 81 360 360 360 350 350 340 340 340 330 330 82 320 320 320 310 310 300 300 290 290 290 83 280 280 270 270 270 260 260 250 250 250 84 240 240 230 230 230 220 220 210 210 210 85 200 200 190 190 190 180 180 170 170 160 86 160 160 150 150 140 140 140 130 130 120 87 120 120 110 110 100 100 100 90 90 80 88 80 80 70 70 60 60 60 50 50 40 89 40 40 30 30 20 20 20 10 10 0 312956°—41----4 25 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 12 minutes after release of balloon; altitude of balloon, 2,500 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 0.3 0.4 O.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 28, 580 28, 000 27, 480 26, 950 26, 450 25, 980 25, 500 25, 050 24, 610 24, 190 6 23, 790 23, 390 23, 010 22, 640 22, 290 21, 940 21, 610 21, 280 20, 970 20, 660 7 20, 360 20, 070 19, 790 19, 520 19, 250 18, 990 18, 740 18, 490 18, 250 18, 020 8 17, 790 17, 570 17, 350 17, 140 16, 930 16, 730 16, 530 16, 340 16, 150 15, 960 9 15, 780 15, 610 15, 440 15, 270 15, 100 14, 940 14, 780 14, 630 14, 470 14, 320 10 14, 180 14, 040 13, 890 13, 760 13, 620 13, 490 13, 360 13, 230 13, 110 12, 980 11 12, 860 12, 740 12, 630 12, 510 12, 400 12, 290 12, 180 12, 070 11, 970 11, 860 12 11, 760 11, 660 11, 560 11, 470 11, 370 11, 280 11, 180 11, 090 11, 000 10, 920 13 10, 830 10, 740 10, 660 10, 580 10, 490 10, 410 10, 330 10, 260 10, 180 10, 100 14 10, 030 9, 950 9, 880 9, 810 9, 740 9, 670 9, 600 9, 530 9, 460 9, 400 15 9, 330 9, 270 9, 200 9, 140 9, 080 9, 010 8, 950 8, 890 8, 830 8, 780 16 8, 720 8, 660 8, 610 8, 550 8, 490 8, 440 8, 390 8, 330 8, 280 8, 230 17 8, 180 8, 130 8, 080 8, 030 7, 980 7, 930 7, 880 7, 830 7, 790 7, 740 18 7, 690 7, 650 7, 600 7, 560 7, 520 7, 470 7, 430 7, 390 7, 340 7, 300 19 7, 260 7, 220 7, 180 7, 140 7, 100 7, 060 7, 020" 6, 980 6, 940 6, 910 20 6, 870 6, 830 6, 790 6, 760 6, 720 6, 690 6, 650 6, 620 6, 580 6, 550 21 6, 510 6, 480 6, 450 6, 410 6, 380 6, 350 6, 310 6, 280 6, 250 6, 220 22 6, 190 6, 160 6, 130 6, 100 6, 070 6, 040 6, 010 5, 980 5, 950 5, 920 23 5, 890 5, 860 5, 830 5, 810 5, 780 5, 750 5, 720 5, 700 5, 670 5, 640 24 5, 620 5, 590 5, 560 5, 540 5, 510 5, 490 5, 460 5, 440 5, 410 5, 390 25 5, 360 5, 340 5, 310 5, 290 5, 260 5, 240 5, 220 5, 190 5, 170 5, 150 26 5, 130 5, 100 5, 080 5, 060 5, 040 5, 010 4, 990 4, 970 4, 950 4, 930 27 4, 910 4, 890 4, 860 4, 840 4, 820 4, 800 4, 780 4, 760 4, 740 4, 720 28 4, 700 4, 680 4, 660 4, 640 4, 620 4, 600 4, 590 4, 570 4, 550 4, 530 29 4, 510 4, 490 4, 470 4, 460 4, 440 4, 420 4, 400 4, 380 4, 370 4, 350 30 4, 330 4, 310 4, 300 4, 280 4, 260 4, 240 4, 230 4, 210 4, 190 4, 180 31 4, 160 4, 140 4, 130 4, 110 4, 100 4, 080 4, 060 4, 050 4, 030 4, 020 32 4, 000 3, 990 3, 970 3, 950 3, 940 3, 920 3, 910 3, 890 3, 880 3, 860 33 3, 850 3, 840 3, 820 3, 810 3, 790 3, 780 3, 760 3, 750 3, 730 3, 720 34 3, 710 3, 690 3, 680 3, 660 3, 650 3, 640 3, 620 3, 610 3, 600 3, 580 35 3, 570 3, 560 3, 540 3, 530 3, 520 3, 500 3, 490 3, 480 3, 470 3, 450 36 3, 440 3, 430 3, 420 3, 400 3, 390 3, 380 3, 370 3, 350 3, 340 3, 330 37 3, 320 3, 310 3, 290 3, 280 3, 270 3, 260 3, 250 3, 230 3, 220 3, 210 38 3, 200 3, 190 3, 180 3, 170 3, 150 3, 140 3, 130 3, 120 3, 110 3, 100 39 3, 090 3, 080 3, 070 3, 050 3, 040 3, 030 3, 020 3, 010 3, 000 2, 990 40 2, 980 2, 970 2, 960 2, 950 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 41 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 2, 800 2, 790 42 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 2, 700 2, 690 43 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 630 2, 620 2, 610 2, 600 44 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 540 2, 530 2, 520 2, 510 45 2, 500 2, 490 2, 480 2, 470 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 46 2, 410 2, 410 2, 400 2, 390 2, 380 2, 370 2, 360 2, 360 2, 350 2, 340 47 2, 330 2, 320 2, 320 2, 310 2, 300 2, 290 2, 280 2, 270 2, 270 2, 260 26 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal, Component of Distance of Pilot Balloon—Continued 12 minutes after release of balloon; altitude of balloon, 2,500 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 2, 250 2, 240 2, 240 2, 230 2, 220 2, 210 2, 200 2, 200 2, 190 2, 180 49 2, 170 2, 170 2, 160 2, 150 2, 140 2, 140 2, 130 2, 120 2, 110 2, 110 50 2, 100 2, 090 2, 080 2, 080 2, 070 2, 060 2, 050 2, 050 2, 040 2, 030 51 2, 020 2, 020 2, 010 2, 000 2, 000 1, 990 1, 980 1, 970 1, 970 1, 960 52 1, 950 1, 950 1, 940 1, 930 1, 930 1, 920 1, 910 1, 900 1, 900 1, 890 53 1, 880 1, 880 1, 870 1, 860 1, 860 1, 850 1, 840 1, 840 1, 830 1, 820 54 1, 820 1, 810 1, 800 1, 800 1, 790 1, 780 1, 780 1, 770 1, 760 1, 760 55 1, 750 1, 740 1, 740 1, 730 1, 720 1, 720 1, 710 1, 710 1, 700 1, 690 56 1, 690 1, 680 1, 670 1, 670 1, 660 1, 650 1, 650 1, 640 1, 640 1, 630 57 1, 620 1, 620 1, 610 1, 600 1, 600 1, 590 1, 590 1, 580 1, 570 1, 570 58 1, 560 1, 560 1, 550 1, 540 1, 540 1, 530 1, 530 1, 520 1, 510 1, 510 59_____ 1, 500 1, 500 1, 490 1, 480 1, 480 1, 470 1, 470 1, 460 1, 460 1, 450 60 1, 440 1, 440 1, 430 1, 430 1, 420 1, 410 1, 410 1, 400 1, 400 1, 390 61 1, 390 1, 380 1, 370 1, 370 1, 360 1, 360 1, 350 1, 350 1, 340 1, 340 62 1, 330 1, 320 1, 320 1, 310 1, 310 1, 300 1, 300 1, 290 1, 280 1, 280 63 1, 270 1, 270 1, 260 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 220 64 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 1, 190 1, 180 1, 180 1, 170 65 1, 170 1, 160 1, 160 1, 150 1, 140 1, 140 1, 130 1, 130 1, 120 1, 120 66 1, 110 1, 110 1, 100 1, 100 1, 090 1, 090 1, 080 1, 080 1, 070 1, 070 67 1, 060 1, 060 1, 050 1, 050 1, 040 1, 040 1, 030 1, 030 1, 020 1, 020 68 1, 010 1, 000 1, 000 990 990 980 980 970 970 960 69 960 950 950 940 940 930 930 920 920 910 70 910 900 900 900 890 890 880 880 870 870 71 860 860 850 850 840 840 830 830 820 820 72 810 810 800 800 790 790 780 780 770 770 73 760 760 750 750 750 740 740 730 730 720 74 720 710 710 700 700 690 690 680 680 670 75 670 670 660 660 650 650 640 640 630 630 76 620 620 610 610 600 600 600 590 590 580 77 580 570 570 560 560 550 550 540 540 540 78 530 530 520 520 510 510 500 500 500 490 79 490 480 480 470 470 460 460 450 450 450 80 440 440 430 430 420 420 410 410 400 400 81 400 390 390 380 380 370 370 360 360 360 82 350 350 340 340 330 330 320 320 320 310 83 310 300 300 290 290 280 280 280 270 270 84 260 260 250 250 250 240 240 230 230 220 85 220 210 210 210 200 200 190 190 180 180 86 170 170 170 160 160 150 150 140 140 140 87 130 130 120 120 110 110 100 100 100 90 88 90 80 80 70 70 70 60 60 50 50 89 40 40 40 30 30 20 20 10 10 0 27 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 13 minutes after release of balloon; altitude of balloon, 2,700 yards Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 30, 860 30, 240 29, 670 29, 110 28, 570 28, 050 27, 540 27, 050 26, 580 26, 130 .6 25, 690 25, 260 24, 850 24, 460 24, 070 23, 700 23, 340 22, 980 22, 640 22, 310 7 21, 990 21, 680 21, 370 21, 080 20, 790 20, 510 20, 240 19, 970 19, 710 19, 460 8______ 19, 210 18, 970 18, 740 18, 510 18, 280 18, 070 17, 850 17, 640 17, 440 17, 240 9 17, 050 16, 860 16, 670 16, 490 16, 310 16, 130 15, 960 15, 800 15, 630 15, 470 10 15, 310 15, 160 15, 010 14, 860 14, 710 14, 570 14, 430 14, 290 14, 150 14, 020 11 13, 890 13, 760 13, 640 13, 510 13, 390 13, 270 13, 150 13, 040 12, 920 12, 810 12 12, 700 12, 590 12, 490 12, 380 12, 280 12, 180 12, 080 11, 980 11, 880 11, 790 13 11, 700 11, 600 11, 510 11, 420 11, 330 11, 250 11, 160 11, 080 10, 990 10, 910 14 10, 830 10, 750 10, 670 10, 590 10, 520 10, 440 10, 370 10, 290 10, 220 10, 150 15 10, 080 10, 010 9, 940 9, 870 9, 800 9, 740 9, 670 9, 610 9, 540 9, 480 16 9, 420 9, 350 9, 290 9, 230 9, 170 9, 110 9, 060 9, 000 8, 940 8, 890 17 8, 830 8, 780 8, 720 8, 670 8, 620 8, 560 8, 510 8, 460 8, 410 8, 360 18 8, 310 8, 260 8, 210 8, 160 8, 120 8, 070 8, 020 7, 980 7, 930 7, 890 19 7, 840 7, 800 7, 750 7, 710 7, 670 7, 620 7, 580 7, 540 7, 500 7, 460 20 7, 420 7, 380 7, 340 7, 300 7, 260 7, 220 7, 180 7, 150 7, 110 7, 070 21 7, 030 7, 000 6, 960 6, 930 6, 890 6, 850 6, 820 6, 780 6, 750 6, 720 22 6, 680 6, 650 6, 620 6, 580 6, 550 6, 520 6, 490 6, 450 6, 420 6, 390 23 6, 360 6, 330 6, 300 6, 270 6, 240 6, 210 6, 180 6, 150 6, 120 6, 090 24 6, 060 6, 040 6, 010 5, 980 5, 950 5, 920 5, 900 5, 870 5, 840 5, 820 25 5, 790 5, 760 5, 740 5, 710 5, 690 5, 660 5, 640 5, 610 5, 590 5, 560 26 5, 540 5, 510 5, 490 5, 460 5, 440 5, 420 5, 390 5, 370 5, 350 5, 320 27 5, 300 5, 280 5, 250 5, 230 5, 210 5, 190 5, 160 5, 140 5, 120 5, 100 28 5, 080 5, 060 5, 040 5, 010 4, 990 4, 970 4, 950 4, 930 4, 910 4, 890 29 4, 870 4, 850 4, 830 4, 810 4, 790 4, 770 4, 750 4, 730 4, 710 4, 700 30 4, 680 4, 660 4, 640 4, 620 4, 600 4, 580 4, 570 4, 550 4, 530 4, 510 31 4, 490 4, 480 4, 460 4, 440 4, 420 4, 410 4, 390 4, 370 4, 350 4, 340 32 4, 320 4, 300 4, 290 4, 270 4, 250 4, 240 4, 220 4, 210 4, 190 4, 170 33 4, 160 4, 140 4, 130 4, 110 4, 090 4, 080 4, 060 4, 050 4, 030 4, 020 34 4, 000 3, 990 3, 970 3, 960 3, 940 3, 930 3, 910 3, 900 3, 880 3, 870 35 3, 860 3, 840 3, 830 3, 810 3, 800 3, 790 3, 770 3, 760 3, 740 3, 730 36 3, 720 3, 700 3, 690 3, 680 3, 660 3, 650 3, 640 3, 620 3, 610 3, 600 37 3, 580 3, 570 3, 560 3, 540 3, 530 3, 520 3, 510 3, 490 3, 480 3, 470 38 3, 460 3, 440 3, 430 3, 420 3, 410 3, 390 3, 380 3, 370 3, 360 3, 350 39 3, 330 3, 320 3, 310 3, 300 3, 290 3, 280 3, 260 3, 250 3, 240 3, 230 40 3, 220 3, 210 3, 190 3, 180 3, 170 3, 160 3, 150 3, 140 3, 130 3, 120 41 3, 110 3, 100 3, 080 3, 070 3, 060 3, 050 3, 040 3, 030 3, 020 3, 010 42 3, 000 2, 990 2, 980 2, 970 2, 960 2, 950 2, 940 2, 930 2, 920 2, 910 43 2, 900 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 44 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 45 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 630 2, 620 46 2, 610 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 540 2, 530 47 2, 520 2, 510 2, 500 2, 490 2, 480 2, 470 2, 470 2, 460 2, 450 2, 440 28 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued IS minutes after release of balloon; altitude of balloon, 2,700 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 2, 430 2, 420 2, 410 2, 410 2, 400 2, 390 2, 380 2, 370 2, 360 2, 360 49 2, 350 2, 340 2, 330 2, 320 2, 310 2, 310 2, 300 2, 290 2, 280 2, 270 50 2, 270 2, 260 2, 250 2, 240 2, 230 2, 230 2, 220 2, 210 2, 200 2, 190 51 2, 190 2, 180 2, 170 2, 160 2, 160 2, 150 2, 140 2, 130 2, 120 2, 120 52 2, 110 2, 100 2, 090 2, 090 2, 080 2, 070 2, 060 2, 060 2, 050 2, 040 53 2, 030 2, 030 2, 020 2, 010 2, 010 2, 000 1, 990 1, 980 1, 980 1, 970 54 1, 960 1, 950 1, 950 1, 940 1, 930 1, 930 1, 920 1, 910 1, 900 1, 900 55 1, 890 1, 880 1, 880 1, 870 1, 860 1, 860 1, 850 1, 840 1, 830 1, 830 56 1, 820 1, 810 1, 810 1, 800 1, 790 1, 790 1, 780 1, 770 1, 770 1, 760 57 1, 750 1, 750 1, 740 1, 730 1, 730 1, 720 1, 710 1, 710 1, 700 1, 690 58 1, 690 1, 620 1, 680 1, 670 1, 670 1, 660 1, 650 1, 650 1, 640 1, 640 1, 630 59 1, 620 1, 610 1, 600 1, 600 1, 590 1, 580 1, 580 1, 570 1, 570 60 1, 560 1, 550 1, 550 1, 540 1, 530 1, 530 1, 520 1, 520 1, 510 1, 500 61 1, 500 1, 490 1, 480 1, 480 1, 470 1, 470 1, 460 1, 450 1, 450 1, 440 62 1, 440 1, 430 1, 420 1, 420 1, 410 1, 410 1, 400 1, 390 1, 390 1, 380 63 1, 380 1, 370 1, 360 1, 360 1, 350 1, 350 1, 340 1, 330 1, 330 1, 320 64 1, 320 1, 310 1, 310 1, 300 1, 290 1, 290 1, 280 1, 280 1, 270 1, 260 65 1, 260 1, 250 1, 250 1, 240 1, 240 1, 230 1, 220 1, 220 1, 210 1, 210 66 1, 200 1, 200 1, 190 1, 190 1, 180 1, 170 1, 170 1, 160 1, 160 1, 150 67 1, 150 1, 140 1, 140 1, 130 1, 120 1, 120 1, 110 1, 110 1, 100 1, 100 68 1, 090 1, 090 1, 080 1, 070 1, 070 1, 060 1, 060 1, 050 1, 050 1, 040 69 1, 040 1, 030 1, 030 1, 020 1, 010 1, 010 1, 000 1, 000 990 990 70 980 980 970 970 960 960 950 950 940 940 71 930 920 920 910 910 900 900 890 890 880 72 880 870 870 860 860 850 850 840 840 830 73 830 820 820 810 800 800 790 790 780 780 74 770 770 760 760 750 750 740 740 730 730 75 720 720 710 710 700 700 690 690 680 680 76 670 670 660 660 650 650 640 640 630 630 77 620 620 610 610 600 600 590 590 580 580 78 570 570 560 560 550 550 540 540 530 530 79 520 520 520 510 510 500 500 490 490 480 80 480 470 470 460 460 450 450 440 440 430 81 430 420 420 410 410 400 400 390 390 380 82 380 370 370 370 360 360 350 350 340 340 83 330 330 320 320 310 310 300 300 290 290 84 280 280 270 270 260 260 260 250 250 240 85 240 230 230 220 220 210 210 200 200 190 86 190 180 180 170 170 170 160 160 150 150 87 140 140 130 130 120 120 110 110 100 100 88 90 90 80 80 80 70 70 60 60 50 89 50 40 40 30 30 20 20 10 10 0 29 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 74 minutes after release of balloon; altitude of balloon, 2,900 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 33, 150 32, 480 31, 870 31, 260 30, 680 30, 130 29, 580 29, 060 28, 550 28, 060 6 27, 590 27, 140 26, 700 26, 270 25, 850 25, 450 25, 060 24, 690 24, 320 23, 960 7 23, 620 23, 280 22, 960 22, 640 22, 330 22, 030 21, 730 21, 450 21, 170 20, 900 8 20, 630 20, 380 20, 120 19, 880 19, 640 19, 400 19, 180 18, 950 18, 730 18, 520 9 18, 310 18, 110 17, 910 17, 710 17, 520 17, 330 17, 150 16, 970 16, 790 16, 620 10 16, 450 16, 280 16, 120 15, 960 15, 800 15, 650 15, 500 15, 350 15, 200 15, 060 11 14, 920 14, 780 14, 650 14, 510 14, 380 14, 250 14, 130 14, 000 13, 880 13, 760 12 13, 640 13, 530 13, 410 13, 300 13, 190 13, 080 12, 970 12, 870 12, 760 12, 660 13 12, 560 12, 460 12, 360 12, 270 12, 170 12, 080 11, 990 11, 900 11, 810 11, 720 14 11, 630 11, 550 11, 460 11, 380 11, 290 11, 210 11, 130 11, 050 10, 980 10, 900 15 10, 820 10, 750 10, 670 10, 600 10, 530 10, 460 10, 390 10, 320 10, 250 10, 180 16 10, 110 10, 050 9, 980 9, 920 9, 850 9, 790 9, 730 9, 670 9, 610 9, 550 17 9, 490 9, 430 9, 370 9, 310 9, 250 9, 200 9, 140 9, 090 9, 030 8, 980 18 8, 930 8, 870 8, 820 8, 770 8, 720 8, 670 8, 620 8, 570 8, 520 8, 470 19 8, 420 8, 370 8, 330 8, 280 8, 240 8, 190 8, 140 8, 100 8, 060 8, 010 20 7, 970 7, 920 7, 880 7, 840 7, 800 7, 760 7, 720 7, 670 7, 630 7, 590 21 7, 550 7, 520 7, 480 7, 440 7, 400 7, 360 7, 320 7, 290 7, 250 7, 210 22 7, 180 7, 140 7, 110 7, 070 7, 040 7, 000 6, 970 6, 930 6, 900 6, 870 23 6, 830 6, 800 6, 770 6, 730 6, 700 6, 670 6, 640 6, 610 6, 580 6, 540 24 6, 510 6, 480 6, 450 6, 420 6, 390 6, 360 6, 330 6, 310 6, 280 6, 250 25 6, 220 6, 190 6, 160 6, 130 6, 110 6, 080 6, 050 6, 030 6, 000 5, 970 26 5, 950 5, 920 5, 890 5, 870 5, 840 5, 820 5, 790 5, 770 5, 740 5, 720 27 5, 690 5, 670 5, 640 5, 620 5, 590 5, 570 5, 550 5, 520 5, 500 5, 480 28 5, 450 5, 430 5, 410 5, 390 5, 360 5, 340 5, 320 5, 300 5, 280 5, 250 29 5, 230 5, 210 5, 190 5, 170 5, 150 5, 130 5, 100 5, 080 5, 060 5, 040 30 5, 020 5, 000 4, 980 4, 960 4, 940 4, 920 4, 900 4, 880 4, 860 4, 850 31___-_ 4, 830 4, 810 4, 790 4, 770 4, 750 4, 730 4, 710 4, 700 4, 680 4, 660 32 4, 640 4, 620 4, 610 4, 590 4, 570 4, 550 4, 530 4, 520 4, 500 4, 480 33 4, 470 4, 450 4, 430 4, 410 4, 400 4, 380 4, 360 4, 350 4, 330 4, 320 34 4, 300 4, 280 4, 270 4, 250 4, 240 4, 220 4, 200 4, 190 4, 170 4, 160 35 4, 140 4, 130 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 4, 020 4, 010 36 3, 990 3, 980 3, 960 3, 950 3, 930 3, 920 3, 900 3, 890 3, 880 3, 860 37 3, 850 3, 830 3, 820 3, 810 3, 790 3, 780 3, 770 3, 750 3, 740 3, 730 38 3, 710 3, 700 3, 690 3, 670 3, 660 3, 650 3, 630 3, 620 3, 610 3, 590 39 3, 580 3, 570 3, 560 3, 540 3, 530 3, 520 3, 510 3, 490 3, 480 3, 470 40 3, 460 3, 440 3, 430 3, 420 3, 410 3, 400 3, 380 3, 370 3, 360 3, 350 41 ' 3, 340 3, 320 3, 310 3, 300 3, 290 3, 280 3, 270 3, 250 3, 240 3, 230 42 3, 220 3, 210 3, 200 3, 190 3, 180 3, 160 3, 150 3, 140 3, 130 3, 120 43 3, 110 3, 100 3, 090 3, 080 3, 070 3, 060 3, 050 3, 030 3, 020 3, 010 44 3, 000 2, 990 2, 980 2, 970 2, 960 2, 950 2, 940 2, 930 2, 920 2, 910 45 2, 900 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 46 2, 800 2, 790 2, 780 2, 770 2, '760 2, 750 2, 740 2, 730 2, 720 2, 710 47 2, 700 2, 690 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 30 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 14 minutes after release of balloon; altitude of balloon, 2,900 yards—Continued Degrees. _ Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 2, 610 2, 600 2, 590 2, 580 2, 570 2, 570 2, 560 2, 550 2, 540 2, 530 49 2, 520 2, 510 2, 500 2, 490 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 50 2, 430 2, 420 2, 420 2, 410 2, 400 2, 390 2, 380 2, 370 2, 370 2, 360 51 2, 350 2, 340 2, 330 2, 320 2, 320 2, 310 2, 300 2, 290 2, 280 2, 270 52 2, 270 2, 260 2, 250 2, 240 2, 230 2, 230 2, 220 2, 210 2, 200 2, 190 53 2, 190 2, 180 2, 170 2, 160 2, 150 2, 150 2, 140 2, 130 2, 120 2, 110 54 2, 110 2, 100 2, 090 2, 080 2, 080 2, 070 2, 060 2, 050 2, 050 2, 040 55 2, 030 2, 020 2, 020 2, 010 2, 000 1, 990 1, 990 1, 980 1, 970 1, 960 56 1, 960 1, 950 1, 940 1, 930 1, 930 1, 920 1, 910 1, 910 1, 900 1, 890 57 1, 880 1, 880 1, 870 1, 860 1, 850 1, 850 1, 840 1, 830 1, 830 1, 820 58 1, 810 1, 800 1, 800 1, 790 1, 780 1, 780 1, 770 1, 760 1, 760 1, 750 59 1, 740 1, 740 1, 730 1, 720 1, 720 1, 710 1, 700 1, 690 1, 690 1, 680 60 1, 670 1, 670 1, 660 1, 650 1, 650 1, 640 1, 630 1, 630 1, 620 1, 610 61 1, 610 1, 600 1, 590 1, 590 1, 580 1, 570 1, 570 1, 560 1, 550 1, 550 62 1, 540 1, 540 1, 530 1, 520 1, 520 1, 510 1, 500 1, 500 1, 490 1, 480 63 1, 480 1, 470 1, 460 1, 460 1, 450 1, 450 1, 440 1, 430 1, 430 i; 420 64 1, 410 1, 410 1, 400 1, 400 1, 390 1, 380 1, 380 1, 370 1, 360 1, 360 65 1, 350 1, 350 1, 340 1, 330 1, 330 1, 320 1, 320 1, 310 1, 300 1, 300 66 1, 290 1, 280 1, 280 1, 270 1, 270 1, 260 1, 250 1, 250 1, 240 1, 240 67 1, 230 1, 220 1, 220 1, 210 1, 210 1, 200 1, 200 1, 190 1, 180 1, 180 68 1, 170 1, 170 1, 160 1, 150 1, 150 1, 140 1, 140 1, 130 1, 120 1, 120 69 1, 110 1, 110 1, 100 1, 100 1, 090 1, 080 1, 080 1, 070 1, 070 1, 060 70 1, 060 1, 050 1, 040 1, 040 1, 030 1, 030 1, 020 1, 020 1, 010 1, 000 71 1, 000 990 990 980 980 970 960 960 950 950 72 940 940 930 930 920 910 910 900 900 890 73 890 880 880 870 860 860 850 850 840 840 74 830 830 820 820 810 800 800 790 790 780 75 780 770 770 760 760 750 740 740 730 730 76 720 720 710 710 700 700 690 690 680 670 77 670 660 660 650 650 640 640 630 630 620 78 620 610 610 600 600 590 580 580 570 570 79 560 560 550 550 540 540 530 530 520 520 80 510 510 500 500 490 490 480 480 470 460 81 460 450 450 440 440 430 430 420 420 410 82 410 400 400 390 390 380 380 370 370 360 83 360 350 350 340 340 330 330 320 310 310 84 300 300 290 290 280 280 270 270 260 260 85 250 250 240 240 230 230 220 220 210 210 86 200 200 190 190 180 180 170 170 160 160 87 150 150 140 140 130 130 120 120 110 110 88 100 100 90 90 80 80 70 70 60 60 89 50 50 40 40 30 30 20 20 10 0 31 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 15 minutes after release of balloon; altitude of balloon, 3,100 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 35, 430 34, 720 34, 070 33, 420 32, 800 32, 210 31, 620 31, 060 30, 520 30, 000 6 29, 490 29, 010 28, 540 28, 080 27, 640 27, 210 26, 790 26^ 390 26^ 000 25^ 620 7 25, 250 24, 890 24, 540 24, 200 23, 870 23, 550 23, 230 22, 930 22, 630 22, 340 8 22, 060 21, 780 21, 510 21, 250 20, 990 20, 740 20, 500 20, 260 20, 020 19, 800 9 19, 570 19, 350 19, 140 18, 930 18, 730 18, 520 18, 330 18, 140 17, 950 17, 760 10 17, 580 17, 400 17, 230 17, 060 16, 890 16, 730 16, 560 16, 410 16, 250 16, 100 11 15, 950 15, 800 15, 660 15, 510 15, 370 15, 240 15, 100 14, 970 14, 840 14, 710 12 14, 580 14, 460 14, 340 14, 220 14, 100 13, 980 13, 870 13, 760 13, 640 13, 540 13 13, 430 13, 320 13, 220 13, 110 13, 010 12, 910 12, 810 12, 720 12, 620 12, 530 14 12, 430 12, 340 12, 250 12, 160 12, 070 11, 990 11, 900 11, 820 11, 730 11, 650 15 11, 570 11, 490 11, 410 11, 330 11, 250 11, 180 11, 100 11, 030 10, 950 10, 880 16 10, 810 10, 740 10, 670 10, 600 10, 530 10, 470 10, 400 10, 330 10, 270 10, 200 17 10, 140 10, 080 10, 010 9, 950 9, 890 9, 830 9, 770 9, 710 9, 660 9, 600 18 9, 540 9, 480 9, 430 9, 370 9, 320 9, 260 9, 210 9, 160 9, 110 9, 050 19 9, 000 8, 950 8, 900 8, 850 8, 800 8, 750 8, 710 8, 660 8, 610 8, 560 20 8, 520 8, 470 8, 430 8, 380 8, 340 8, 290 8, 250 8, 200 8, 160 8, 120 21__. _ 8, 080 8, 030 7, 990 7, 950 7, 910 7, 870 7, 830 7, 790 7, 750 7, 710 22 7, 670 7, 630 7, 600 7, 560 7, 520 7, 480 7, 450 7, 410 7, 370 7, 340 23 7, 300 7, 270 7, 230 7, 200 7, 160 7, 130 7, 100 7, 060 7, 030 7, 000 24 6, 960 6, 930 6, 900 6, 870 6, 830 6, 800 6, 770 6, 740 6, 710 6, 680 25 6, 650 6, 620 6, 590 6, 560 6, 530 6, 500 6, 470 6, 440 6, 410 6, 380 26 6, 360 6, 330 6, 300 6, 270 6, 240 6, 220 6, 190 6, 160 6, 140 6, 110 27 . . 6, 080 6, 060 6, 030 6, 010 5, 980 5, 960 5, 930 5, 900 5, 880 5, 850 28 5, 830 5, 810 5, 780 5, 760 5, 730 5, 710 5, 690 5, 660 5, 640 5, 620 29 5, 590 5, 570 5, 550 5, 520 5, 500 5, 480 5, 460 5, 430 5, 410 5, 390 30 5, 370 5, 350 5, 330 5, 300 5, 280 5, 260 5, 240 5, 220 5, 200 5, 180 31 5, 160 5, 140 5, 120 5, 100 5, 080 5, 060 5, 040 5, 020 5, 000 4, 980 32 4, 960 4, 940 4, 920 4, 900 4, 880 4, 870 4, 850 4, 830 4, 810 4, 790 33 4, 770 4, 760 4, 740 4, 720 4, 700 4, 680 4, 670 4, 650 4, 630 4, 610 34 4, 600 4, 580 4, 560 4, 540 4, 530 4, 510 4, 490 4, 480 4, 460 4, 440 35 4, 430 4, 410 4, 390 4, 380 4, 360 4, 350 4, 330 4, 310 4, 300 4, 280 36 4, 270 4, 250 4, 240 4, 220 4, 200 4, 190 4, 170 4, 160 4, 140 4, 130 37 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 4, 030 4, 010 4, 000 3, 980 38 3, 970 3, 950 3, 940 3, 930 3, 910 3, 900 3, 880 3, 870 3, 860 3, 840 39 3, 830 3, 810 3, 800 3, 790 3, 770 3, 760 3, 750 3, 730 3, 720 3, 710 40 3, 690 3, 680 3, 670 3, 660 3, 640 3, 630 3, 620 3, 600 3, 590 3, 580 41 3, 570 3, 550 3, 540 3, 530 3, 520 3, 500 3, 490 3, 480 3, 470 3, 450 42 3, 440 3, 430 3, 420 3, 410 3, 390 3, 380 3, 370 3, 360 3, 350 3, 340 43 3, 320 3, 310 3, 300 3, 290 3, 280 3, 270 3, 260 3, 240 3, 230 3, 220 44 3, 210 3, 200 3, 190 3, 180 3, 170 3, 150 3, 140 3, 130 3, 120 3, 110 45 3, 100 3, 090 3, 080 3, 070 3, 060 3, 050 3, 040 3, 030 3, 010 3, 000 46 2, 990 2, 980 2, 970 2, 960 2, 950 2, 940 2, 930 2, 920 2, 910 2, 900 47 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 2, 800 32 TM 11—420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 15 minutes after release of balloon; altitude of balloon, 3,100 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l o.a 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 2, 700 49 2, 690 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 2, 610 50 2, 600 2, 590 2, 580 2, 570 2, 560 2, 560 2, 550 2, 540 2, 530 2, 520 51 2, 510 2, 500 2, 490 2, 480 2, 470 2, 470 2, 460 2, 450 2, 440 2, 430 52 2, 420 2, 410 2, 400 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 2, 340 53 2, 340 2, 330 2, 320 2, 310 2, 300 2, 290 2, 290 2, 280 2, 270 2, 260 54 2, 250 2, 240 2, 240 2, 230 2, 220 2, 210 2, 200 2, 190 2, 190 2, 180 55 2, 170 2, 160 2, 150 2, 150 2, 140 2, 130 2, 120 2, 110 2, 110 2, 100 56 2, 090 2, 080 2, 080 2, 070 2, 060 2, 050 2, 040 2, 040 2, 030 2, 020 57 2, 010 2, 010 2, 000 1, 990 1, 980 1, 980 1, 970 1, 960 1, 950 1, 940 58 1, 940 1, 930 1, 920 1, 910 1, 910 1, 900 1, 890 1, 880 1, 880 1, 870 59 1, 860 1, 860 1, 850 1, 840 1, 830 1, 830 1, 820 1, 810 1, 800 1, 800 60 1, 790 1, 780 1, 780 1, 770 1, 760 1, 750 1, 750 1, 740 1, 730 1, 730 61 1, 720 1, 710 1, 700 1, 700 1, 690 1, 680 1, 680 1, 670 - 1, 660 1, 660 62 1, 650 1, 640 1, 630 1, 630 1, 620 1, 610 1, 610 1, 600 1, 590 1, 590 63 1, 580 1, 570 1, 570 1, 560 1, 550 1, 550 1, 540 1, 530 1, 530 1, 520 64 1, 510 1, 510 1, 500 1, 490 1, 490 1, 480 1, 470 1, 470 1, 460 1, 450 65 1, 450 1, 440 1, 430 1, 430 1, 420 1, 410 1, 410 1, 400 1, 390 1, 390 66 1, 380 1, 370 1, 370 1, 360 1, 350 1, 350 1, 340 1, 340 1, 330 1, 320 67 1, 320 1, 310 1, 300 1, 300 1, 290 1, 280 1, 280 1, 270 1, 270 1, 260 68 1, 250 1, 250 1, 240 1, 230 1, 230 1, 220 1, 210 1, 210 1, 200 1, 200 69 1, 190 1, 180 1, 180 1, 170 1, 170 1, 160 1, 150 1, 150 1, 140 1, 130 70 1, 130 1, 120 1, 120 1, 110 1, 100 1, 100 1, 090 1, 090 1, 080 1, 070 71 1, 070 1, 060 1, 060 1, 050 1, 040 1, 040 1, 030 1, 030 1, 020 1, 020 72 1, 010 1, 000 1, 000 990 980 980 970 970 960 950 73 950 940 940 930 920 920 910 910 900 890 74 890 880 880 870 870 860 850 850 840 840 75 830 820 820 810 810 800 800 790 780 780 76 770 770 760 760 750 740 740 730 730 720 77 720 710 700 700 690 690 680 680 670 660 78 660 650 650 640 640 630 620 620 610 610 79 600 600 590 590 580 570 570 560 560 550 80 550 540 540 530 520 520 510 510 500 500 81 490 490 480 470 470 460 460 450 450 440 82 440 430 420 420 410 410 400 400 390 390 83 380 380 370 360 360 350 350 340 340 330 84 330 320 310 310 300 300 290 290 280 280 85 270 270 260 250 250 240 240 230 230 220 86 220 210 210 200 190 190 180 180 170 170 87 160 160 150 150 140 140 130 120 120 110 88 110 110 100 90 90 80 80 70 60 60 89 50 50 40 40 30 30 20 20 10 10 312956°—41----5 33 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 16 minutes after release of balloon; altitude of balloon, 3,300 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.1 0.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 37, 720 31, 400 26, 880 23, 480 20, 840 18, 720 36, 960 30, 880 26, 490 23, 190 20, 600 18, 530 36, 270 30, 380 26, 120 22, 900 20, 370 18, 340 35, 570 29, 890 25, 760 22, 620 20, 150 18, 160 34, 910 29, 420 25, 410 22, 350 19, 930 17, 980 34, 290 28, 960 25, 070 22, 080 19, 720 17, 810 33, 660 28, 520 24, 730 21, 820 19, 510 17, 630 33, 070 28, 090 24, 410 21, 570 19, 310 17, 460 32, 490 27, 670 24, 090 21, 320 19, 110 17, 300 31, 930 27, 270 23, 780 21, 070 18, 910 17, 140 6 7 8 _ _ 9 10 11 16, 980 16, 820 16, 670 16, 510 16, 370 16, 220 16, 080 15, 940 15, 800 15, 660 12 15, 530 15, 390 15, 260 15, 140 15, 010 14, 890 14, 760 14, 640 14, 520 14, 410 13 14, 290 14, 180 14, 070 13, 960 13, 850 13, 750 13, 640 13, 540 13, 440 13, 330 14 13, 240 13, 140 13, 040 12, 950 12, 850 12, 760 12, 670 12, 580 12, 490 12, 400 15 12, 320 12, 230 12, 150 12, 060 11, 980 11, 900 11, 820 11, 740 11, 660 11, 580 16 11, 510 11, 430 11, 360 11, 290 11, 210 11, 140 11, 070 11, 000 10, 930 10, 860 17 10, 790 10, 730 10, 660 10, 590 10, 530 10, 470 10, 400 10, 340 10, 280 10, 220 18 10. 160 10, 100 10, 040 9, 980 9, 920 9, 860 9, 810 9, 750 9, 690 9, 640 19 9, 580 9, 530 9, 480 9, 420 9, 370 9, 320 9, 270 9, 220 9, 170 9, 120 20 9, 070 9, 020 8, 970 8, 920 8, 870 8, 830 8, 780 8, 730 8, 690 8, 640 21 8, 600 8, 550 8, 510 8, 460 8, 420 8, 380 8, 330 8, 290 8, 250 8, 210 22 8, 170 8, 130 8, 090 8, 050 8, 010 7, 970 7, 930 7, 890 7, 850 7, 810 23 7, 770 7, 740 7, 700 7. 660 7, 630 7, 590 7, 550 7, 520 7, 480 7, 450 24 7, 410 7, 380 7, 340 7, 310 7, 270 7, 240 7, 210 7, 170 7, 140 7, 110 25 7, 080 7, 040 7, 010 6, 980 6, 950 6, 920 6, 890 6, 860 6, 830 6, 800 26 6, 770 6, 740 6, 710 6, 680 6, 650 6, 620 6, 590 6, 560 6, 530 6, 500 27 6, 480 6, 450 6, 420 6, 390 6, 370 6, 340 6, 310 6, 290 6, 260 6, 230 28 6, 210 6, 180 6, 150 6, 130 6, 100 6, 080 6, 050 6, 030 6, 000 5, 980 29 5, 950 5, 930 5, 900 5, 880 5, 860 5, 830 5, 810 5, 790 5, 760 5, 740 30 5, 720 5, 690 5, 670 5, 650 5, 620 5, 600 5, 580 5, 560 5, 540 5, 510 31 5, 490 5, 470 5, 450 5, 430 5, 410 5, 390 5. 360 5, 340 5, 320 5, 300 32 5, 280 5, 260 5, 240 5, 220 5, 200 5, 180 5, 160 5, 140 5, 120 5, 100 33 5, 080 5, 060 5, 040 5, 020 5, 000 4, 990 4, 970 4, 950 4, 930 4, 910 34 4, 890 4, 870 4, 860 4, 840 4, 820 4, 800 4, 780 4, 770 4, 750 4, 730 35 4, 710 4, 700 4, 680 4, 660 4, 640 4, 630 4, 610 4, 590 4, 580 4, 560 36 4, 540 4, 530 4, 510 4, 490 4, 480 4, 460 4, 440 4, 430 4, 410 4, 400 37 4, 380 4, 360 4, 350 4, 330 4, 320 4, 300 4, 290 4, 270 4, 250 4, 240 38 4, 220 4, 210 4, 190 4, 180 4, 160 4, 150 4, 130 4, 120 4, 100 4, 090 39 4, 080 4, 060 4, 050 4, 030 4, 020 4, 000 3, 990 3, 970 3, 960 3, 950 40 3, 930 3, 920 3, 900 3, 890 3, 880 3, 860 3, 850 3, 840 3, 820 3, 810 41 3, 800 3, 780 3, 770 3, 760 3, 740 3, 730 3, 720 3, 700 3, 690 3, 680 42 3, 660 3, 650 3, 640 3, 630 3, 610 3, 600 3, 590 3, 580 3, 560 3, 550 43 3, 540 3, 530 3, 510 3, 500 3, 490 3, 480 3, 470 3, 450 3, 440 3, 430 44 3, 420 3, 410 3, 390 3, 380 3, 370 3, 360 3, 350 3, 330 3, 320 3, 310 45 3, 300 3, 290 3, 280 3, 270 3, 250 3, 240 3, 230 3, 220 3, 210 3, 200 46 3, 190 3, 180 3, 160 3, 150 3, 140 3, 130 3, 120 3, 110 3, 100 3, 090 47 3, 080 3, 070 3, 060 3, 050 3, 030 3, 020 3, 010 3, 000 2, 990 2, 980 34 TM 11-42.0 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 16 minutes after release of balloon; altitude of balloon, 3,300 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 2, 970 2, 960 2, 950 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 880 49 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 2, 800 2, 790 2, 780 50 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 2, 700 2, 690 2, 680 51 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 2, 620 2, 610 2, 600 2, 590 52 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 500 2, 500 53 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 420 2, 410 54 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 2, 350 2, 340 2, 330 2, 320 55 ’ 2, 310 2, 300 2, 290 2, 280 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 56 2, 230 2, 220 2, 210 2, 200 2, 190 2, 180 2, 180 2, 170 2, 160 2, 150 57 2, 140 2, 130 2, 130 2, 120 2, 110 2, 100 2, 090 2, 090 2, 080 2, 070 58 2, 060 2, 050 2, 050 2, 040 2, 030 2, 020 2, 010 2, 010 2, 000 1, 990 59 1, 980 1, 980 1, 970 1, 960 1, 950 1, 940 1, 940 1, 930 1, 920 1, 910 60 1, 910 1, 900 1, 890 1, 880 1, 870 1, 870 1, 860 1, 850 1, 840 1, 840 61 1, 830 1, 820 1, 810 1, 810 1, 800 1, 790 1, 780 1, 780 1, 770 1, 760 62 1, 750 1, 750 1, 740 1, 730 1, 730 1, 720 1, 710 1, 700 1, 700 1, 690 63 1, 680 1, 670 1, 670 1, 660 1, 650 1, 650 1, 640 1, 630 1, 620 1, 620 64 1, 610 1, 600 1, 600 1, 590 1, 580 1, 570 1, 570 1, 560 1, 550 1, 550 65 1, 540 1, 530 1, 520 1, 520 1, 510 1, 500 1, 500 1, 490 1, 480 1, 480 66 1, 470 1, 460 1, 460 1, 450 1, 440 1, 430 1, 430 1, 420 1, 410 1, 410 67 1, 400 1, 390 1, 390 1, 380 1, 370 1, 370 1, 360 1, 350 1, 350 1, 340 68 1, 330 1, 330 1, 320 1, 310 1, 310 1, 300 1, 290 1, 290 1, 280 1, 270 69 1, 270 1, 260 1, 250 1, 250 1, 240 1, 230 1, 230 1, 220 1, 210 1, 210 70 1, 200 1, 190 1, 190 1, 180 1, 180 1, 170 1, 160 1, 160 1, 150 1, 140 71 1, 140 1, 130 1, 120 1, 120 1, 110 1, 100 1, 100 1, 090 1, 090 1, 080 72 1, 070 1, 070 1, 060 1, 050 1, 050 1, 040 1, 030 1, 030 1, 020 1, 020 73 1, 010 1, 000 1, 000 990 980 980 970 960 960 950 74 950 940 930 930 920 920 910 900 900 890 75 880 880 870 870 860 850 850 840 830 830 76 820 820 810 800 800 790 790 780 770 770 77 760 760 750 740 740 730 730 720 710 710 78 700 700 690 680 680 670 670 660 650 650 79 640 640 630 620 620 610 610 600 590 590 80 580 580 570 560 560 550 550 540 530 530 81 520 520 510 500 500 490 490 480 480 470 82 460 460 450 450 440 430 430 420 420 410 83 410 400 390 390 380 380 370 360 360 350 84 350 340 340 330 320 320 310 310 300 290 85 290 280 280 270 270 260 250 250 240 240 86 230 230 220 210 210 200 200 190 180 180 87 170 170 160 160 150 140 140 130 130 120 88 120 110 100 100 90 90 80 70 70 60 89 60 50 50 40 30 30 20 20 10 10 35 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 17 minutes after release of balloon; altitude of balloon, 3,500 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.3 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 40, 000 39, 200 38, 460 37, 730 37, 030 36, 360 35, 700 35, 070 34, 460 33, 870 6 33, 300 32, 750 32, 220 31, 700 31, 200 30, 720 30, 250 29, 790 29, 350 28' 920 7 28i 510 28, 100 27, 710 27, 320 26, 950 26, 590 26, 230 25, 890 25, 550 25, 220 8 24, 900 24, 590 24, 290 23, 990 23, 700 23, 420 23, 140 22, 870 22, 610 22, 350 9 22, 100 21, 850 21, 610 21, 370 21, 140 20, 920 20, 690 20, 480 20, 260 20, 050 10 19, 850 19, 650 19, 450 19, 260 19, 070 18, 880 18, 700 18, 520 18, 350 18, 180 11 18, 010 17, 840 17, 680 17, 520 17, 360 17, 200 17, 050 16, 900 16, 750 16, 610 12 16, 470 16, 330 16, 190 16, 050 15, 920 15, 790 15, 660 15, 530 15, 410 15, 280 13 15, 160 15, 040 14, 920 14, 810 14, 690 14, 580 14, 470 14, 360 14, 250 14, 140 14 14, 040 13, 930 13, 830 13, 730 13, 630 13, 530 13, 440 13, 340 13, 250 13, 150 15 13, 060 12, 970 12, 880 12, 790 12, 710 12, 620 12, 540 12, 450 12, 370 12, 290 16 12, 210 12, 130 12, 050 11, 970 11, 890 11, 820 11, 740 11, 670 11, 590 11, 520 17 11, 450 11, 380 11, 310 11, 240 11, 170 11, 100 11, 030 10, 970 10, 900 10, 840 18 10, 770 10, 710 10, 650 10, 580 10, 520 10, 460 10, 400 10, 340 10, 280 10, 220 19 10, 160 10, 110 10, 050 9, 990 9, 940 9, 880 9, 830 9, 780 9, 720 9, 670 20 9, 620 9, 560 9, 510 9, 460 9, 410 9, 360 9, 310 9, 260 9, 210 9, 170 21 9, 120 9, 070 9, 020 8, 980 8, 930 8, 890 8, 840 8, 800 8, 750 8, 710 22 8, 660 8, 620 8, 580 8, 530 8, 490 8, 450 8, 410 8, 370 8, 330 8, 290 23 8, 250 8, 210 8, 170 8, 130 8, 090 8, 050 8, 010 7, 970 7, 940 7, 900 24 7, 860 7, 820 7, 790 7, 750 7, 720 7, 680 7, 640 7, 610 7, 570 7, 540 25 7, 510 7, 470 7, 440 7, 400 7, 370 7, 340 7, 310 7, 270 7, 240 7, 210 26 7, 180 7, 140 7, 110 7, 080 7, 050 7, 020 6, 990 6, 960 6, 930 6, 900 27 6, 870 6, 840 6, 810 6, 780 6, 750 6, 720 6, 690 6, 670 6, 640 6, 610 28 6, 580 6, 550 6, 530 6, 500 6, 470 6, 450 6, 420 6, 390 6, 370 6, 340 29 6, 310 6, 290 6, 260 6, 240 6, 210 6, 190 6, 160 6, 140 6, 110 6, 090 30 6, 060 6, 040 6, 010 5, 990 5, 970 5, 940 5, 920 5, 890 5, 870 5, 850 31 5, 830 5, 800 5, 780 5, 760 5, 730 5, 710 5, 690 5, 670 5, 640 5, 620 32 5, 600 5, 580 5, 560 5, 540 5, 510 5, 490 5, 470 5, 450 5, 430 5, 410 33 5, 390 5, 370 5, 350 5, 330 5, 310 5, 290 5, 270 5, 250 5, 230 5, 210 34 5, 190 5, 170 5, 150 5, 130 5, 110 5, 090 5, 070 5, 050 5, 040 5, 020 35 5, 000 4, 980 4, 960 4, 940 4, 920 4, 910 4, 890 4, 870 4, 850 4, 830 36 4, 820 4, 800 4, 780 4, 760 4, 750 4, 730 4, 710 4, 700 4, 680 4, 660 37 4, 640 4, 630 4, 610 4, 590 4, 580 4, 560 4, 540 4, 530 4, 510 4, 500 38 4, 480 4, 460 4, 450 4, 430 4, 420 4, 400 4, 380 4, 370 4, 350 4, 340 39 4, 320 4, 310 4, 290 4, 280 4, 260 4, 250 4, 230 4, 220 4, 200 4, 190 40 4, 170 4, 160 4, 140 4, 130 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 41 4, 030 4, 010 4, 000 3, 980 3, 970 3, 960 3, 940 3, 930 3, 910 3, 900 42 3, 890 3, 870 3, 860 3, 850 3, 830 3, 820 3, 810 3, 790 3, 780 3, 770 43 3, 750 3, 740 3, 730 3, 710 3, 700 3, 690 3, 680 3, 660 3, 650 3, 640 44 3, 620 3, 610 3, 600 3, 590 3, 570 3, 560 3, 550 3, 540 3, 520 3, 510 45 3, 500 3, 490 3, 480 3, 460 3, 450 3, 440 3, 430 3, 420 3, 400 3, 390 46 3, 380 3, 370 3, 360 3, 340 3, 330 3, 320 3, 310 3, 300 3, 290 3, 280 47 3, 260 3, 250 3, 240 3, 230 3, 220 3, 210 3, 200 3, 180 3, 170 3, 160 36 LIBRARY TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 17 minutes after release of balloon; altitude of balloon, 3,500 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.3 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 3, 150 3, 140 3, 130 3, 120 3, 110 3, 100 3, 090 3, 070 3, 060 3, 050 49 3, 040 3, 030 3, 020 3, 010 3, 000 2, 990 2, 980 2, 970 2, 960 2, 950 50 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 870 2, 860 2, 850 2, 840 51 2, 830 2, 820 2, 810 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 52 2, 730 2, 720 2, 710 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 53 2, 640 2, 630 2, 620 2, 610 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 54 2, 540 2, 530 2, 520 2, 520 2, 510 2, 500 2. 490 2, 480 2, 470 2, 460 55 2, 450 2, 440 2, 430 2, 420 2, 410 2, 410 2, 400 2, 390 2, 380 2, 370 56 2, 360 2, 350 2, 340 2, 330 2, 330 2, 320 2, 310 2, 300 2, 290 2, 280 57 2, 270 2, 260 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 2, 200 58 2, 190 2, 180 2, 170 2, 160 2, 150 2, 140 2, 140 2, 130 2, 120 2, 110 59 2, 100 2, 090 2, 090 2, 080 2, 070 2, 060 2, 050 2, 050 2, 040 2, 030 60 2, 020 2, 010 2, 000 2, 000 1, 990 1, 980 1,970 1, 960 1, 960 1, 950 61 1, 940 1, 930 1, 920 1, 920 1, 910 1, 900 1, 890 1, 880 1, 880 1, 870 62 1, 860 1, 850 1, 850 1, 840 1, 830 1, 820 1, 810 1, 810 1, 800 1, 790 63 1, 780 1, 780 1, 770 1, 760 1, 750 1, 750 1, 740 1, 730 1, 720 1, 710 64 1, 710 1, 700 1, 690 1, 680 1, 680 1, 670 1, 660 1, 650 1, 650 1, 640 65 1, 630 1, 620 1, 620 1, 610 1, 600 1, 590 1, 590 1, 580 1, 570 1, 570 66 1, 560 1, 550 1, 540 1, 540 1, 530 1, 520 1, 510 1, 510 1, 500 1, 490 67 1, 490 1, 480 1, 470 1, 460 1, 460 1, 450 1, 440 1, 440 1, 430 1, 420 68 1, 410 1, 410 1, 400 1, 390 1, 390 1, 380 1, 370 1, 360 1, 360 1, 350 69 1, 340 1, 340 1, 330 1, 320 1, 320 1, 310 1, 300 1, 290 1, 290 1, 280 70 1, 270 1, 270 1, 260 1, 250 1, 250 1, 240 1, 230 1, 230 1, 220 1, 210 71 1, 210 1, 200 1, 190 1, 180 1, 180 1, 170 1, 160 1, 160 1, 150 1, 140 72 1, 140 1, 130 1, 120 1, 120 1, 110 1, 100 1, 100 1, 090 1, 080 1, 080 73 1, 070 1, 060 1, 060 1, 050 1, 040 1, 040 1, 030 1, 020 1, 020 1, 010 74 1, 000 1, 000 990 980 980 970 960 960 950 940 75 940 930 920 920 910 910 900 890 890 880 76 870 870 860 850 850 840 830 830 820 810 77 810 800 800 790 780 780 770 760 760 750 78 740 740 730 720 720 710 710 700 690 690 79 680 670 670 660 650 650 640 640 630 620 80 620 610 600 600 590 590 580 570 570 560 81 550 550 540 540 530 520 520 510 500 500 82 490 490 480 470 470 460 450 450 440 440 83 430 420 420 410 400 400 390 390 380 370 84 370 360 360 350 340 340 330 320 320 310 85 310 300 290 290 280 280 270 260 260 250 86 240 240 230 230 220 210 210 200 200 190 87 180 180 170 170 160 150 150 140 130 130 88 120 120 110 100 100 90 90 80 70 70 89 60 50 50 40 40 30 20 20 10 10 37 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component ok Distance of Pilot Balloon—Continued 18 minutes after release of balloon; altitude of balloon, 3,700 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 42, 290 41, 440 40, 660 39, 890 39, 150 38, 440 37, 740 37, 070 36, 430 35, 800 6 35, 200 34, 620 34, 060 33, 510 32, 990 32, 470 31, 980 31, 500 31, 030 30, 580 7 30, 130 29, 710 29, 290 28, 880 28, 490 28, 100 27, 730 27, 370 27, 010 26, 660 8 26, 330 26, 000 25, 680 25, 360 25, 060 24, 760 24, 470 24, 180 23, 900 23, 630 9 23, 360 23, 100 22, 840 22, 590 22, 350 22, 110 21, 880 21, 650 21, 420 2i; 200 10 20, 980 20, 770 20, 560 20, 360 20, 160 19, 960 19, 770 19, 580 19, 400 19, 210 11 19, 040 18, 860 18, 690 18, 520 18, 350 18, 190 18, 020 17, 870 17, 710 17i 560 12 17, 410 17, 260 17, 110 16, 970 16, 830 16, 690 16, 550 16, 420 16, 290 16, 150 13 16, 030 15, 900 15, 770 15, 650 15, 530 15, 410 15, 290 15, 180 15, 060 14, 950 14 14, 840 14, 730 14, 620 14, 520 14, 410 14, 310 14, 200 14, 100 14, 000 13, 910 15 13, 810 13, 710 13, 620 13, 520 13, 430 13, 340 13, 250 13, 160 13, 080 12, 990 16 12, 900 12, 820 12, 740 12, 650 12, 570 12, 490 12, 410 12, 330 12, 260 12; 180 17 12, 100 12, 030 11, 950 11, 880 11, 810 11, 730 11, 660 11, 590 11, 520 11, 460 18 11, 390 11, 320 11, 250 11, 190 11, 120 11, 060 10, 990 10, 930 10, 870 10, 810 19 10, 750 10, 680 10, 620 10, 570 10, 510 10, 450 10, 390 10, 330 10, 280 10; 220 20 10, 170 10, 110 10, 060 10, 000 9, 950 9, 900 9, 840 9, 790 9, 740 9, 690 21 9, 640 9, 590 9, 540 9, 490 9, 440 9, 390 9, 350 9, 300 9, 250 9; 200 22 9, 160 9, 110 9, 070 9, 020 8, 980 8, 930 8, 890 8, 850 8, 800 8, 760 23 8, 720 8, 670 8, 630 8, 590 8, 550 8, 510 8, 470 8, 430 8, 390 8, 350 24 8, 310 8, 270 8, 230 8, 190 8, 160 8, 120 8, 080 8, 040 8, 010 7, 970 25 7, 930 7, 900 7, 860 7, 830 7, 790 7, 760 7, 720 7, 690 7, 650 7, 620 26 7, 590 7, 550 7, 520 7, 490 7, 450 7, 420 7, 390 7, 360 7, 320 7, 290 27 7, 260 7, 230 7, 200 7, 170 7, 140 7, 110 7, 080 7, 050 7, 020 6; 990 28 6, 960 6, 930 6, 900 6, 870 6, 840 6, 810 6, 790 6, 760 6, 730 6, 700 29 6, 670 6, 650 6, 620 6, 590 6, 570 6, 540 6, 510 6, 490 6, 460 6, 430 30 6, 410 6, 380 6, 360 6, 330 6, 310 6, 280 6, 260 6, 230 6, 210 6, 180 31 6, 160 6, 130 6, 110 6, 090 6, 060 6, 040 6, 010 5, 990 5, 970 5, 940 32 5, 920 5, 900 5, 880 5, 850 5, 830 5, 810 5, 790 5, 760 5, 740 5, 720 33 5, 700 5, 680 5, 650 5, 630 5, 610 5, 590 5, 570 5, 550 5, 530 5, 510 34 5, 490 5, 460 5, 440 5, 420 5, 400 5, 380 5, 360 5, 340 5, 320 5, 300 35 5, 280 5, 260 5, 250 5, 230 5, 210 5, 190 5, 170 5, 150 5, 130 5, 110 36 5, 090 5, 070 5, 060 5, 040 5, 020 5, 000 4, 980 4, 960 4, 950 4, 930 37 4, 910 4, 890 4, 870 4, 860 4, 840 4, 820 4, 800 4, 790 4, 770 4, 750 38 4, 740 4, 720 4, 700 4, 680 4, 670 4, 650 4, 630 4, 620 4, 600 4, 590 39 4, 570 4, 550 4, 540 4, 520 4, 500 4, 490 4, 470 4, 460 4, 440 4, 430 40 4, 410 4, 390 4, 380 4, 360 4, 350 4, 330 4, 320 4, 300 4, 290 4, 270 41 4, 260 4, 240 4, 230 4, 210 4, 200 4, 180 4, 170 4, 150 4, 140 4, 120 42 4, 110 4, 090 4, 080 4, 070 4, 050 4, 040 4, 020 4, 010 4, 000 3, 980 43 3, 970 3, 950 3, 940 3, 930 3, 910 3, 900 3, 890 3, 870 3, 860 3, 850 44 3, 830 3, 820 3, 800 3, 790 3, 780 3, 770 3, 750 3, 740 3, 730 3, 710 45 3, 700 3, 690 3, 670 3, 660 3, 650 3, 640 3, 620 3, 610 3, 600 3, 590 46 3, 570 3, 560 3, 550 3, 540 3, 520 3, 510 3, 500 3, 490 3, 470 3, 460 47 3, 450 3, 440 3, 430 3, 410 3, 400 3, 390 3, 380 3, 370 3, 350 3, 340 38 TM 11—420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 18 minutes after release of balloon; altitude of balloon, 3,700 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 3, 330 3, 320 3, 310 3, 300 3, 280 3, 270 3, 260 3, 250 3, 240 3, 230 49 3, 220 3, 200 3, 190 3, 180 3, 170 3, 160 3, 150 3, 140 3, 130 3, 120 50 3, 100 3, 090 3, 080 3, 070 3, 060 3, 050 3, 040 3, 030 3, 020 3, 010 51 3, 000 2, 990 2, 970 2, 960 2, 950 2, 940 2, 930 2, 920 2, 910 2, 900 52 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 2, 800 53 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 2, 700 54 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 2, 610 2, 600 55 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 510 56 2, 500 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 410 57 2, 400 2, 390 2, 380 2, 380 2, 370 2, 360 2, 350 2, 340 2, 330 2, 320 58 2, 310 2, 300 2, 290 2, 290 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 59 2, 220 2, 210 2, 210 2, 200 2, 190 2, 180 2, 170 2, 160 2, 150 2, 140 60 2, 140 2, 130 2, 120 2, 110 2, 100 2, 090 2, 080 2, 080 2, 070 2, 060 61 2, 050 2, 040 2, 030 2, 030 2, 020 2, 010 2, 000 1, 990 1, 980 1, 980 62 1, 970 1, 960 1, 950 1, 940 1, 930 1, 930 1, 920 1, 910 1, 900 1, 890 63 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 840 1, 830 1, 820 1, 810 64 1, 800 1, 800 1, 790 1, 780 1, 770 1, 760 1, 760 1, 750 1, 740 1, 730 65 1, 730 1, 720 1, 710 1, 700 1, 690 1, 690 1, 680 1, 670 1, 660 1, 660 66 1, 650 1, 640 1, 630 1, 620 1, 620 1, 610 1, 600 1, 590 1, 590 1, 580 67 1, 570 1, 560 1, 560 1, 550 1, 540 1, 530 1, 530 1, 520 1, 510 1, 500 68 1, 490 1, 490 1, 480 1, 470 1, 460 1, 460 1, 450 1, 440 1, 440 1, 430 69 1, 420 1, 410 1, 410 1, 400 1, 390 1, 380 1, 380 1, 370 1, 360 1, 350 70 1, 350 1, 340 1, 330 1, 320 1, 320 1, 310 1, 300 1, 300 1, 290 1, 280 71 1, 270 1, 270 1, 260 1, 250 1, 250 1, 240 1, 230 1, 220 1, 220 1, 210 72 1, 200 1, 200 1, 190 1, 180 1, 170 1, 170 1, 160 1, 150 1, 150 1, 140 73 1, 130 1, 120 1, 120 1, 110 1, 100 1, 100 1, 090 1, 080 1, 070 1, 070 74 1, 060 1, 050 1, 050 1, 040 1, 030 1, 030 1, 020 1, 010 1, 010 1, 000 75 990 980 980 970 960 960 950 940 940 930 76 920 920 910 900 900 890 880 870 870 860 77 850 850 840 830 830 820 810 810 800 790 78 790 780 770 770 760 750 750 740 730 730 79 720 710 710 700 690 690 680 670 670 660 80 650 650 640 630 630 620 610 610 600 590 81 590 580 570 570 560 550 550 540 530 530 82 520 510 510 500 490 490 480 470 470 460 83 450 450 440 430 430 420 420 410 400 400 84 390 380 380 370 360 360 350 340 340 330 85 320 320 310 300 300 290 280 280 270 270 86 260 250 250 240 230 230 220 210 210 200 87 190 190 180 170 170 160 160 150 140 140 88 130 120 120 110 100 100 90 80' 80 70 89 60 60 50 50 40 30 30 20 10 10 39 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 19 minutes after release of balloon; altitude of balloon, 3,900 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 O.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 44, 580 43, 680 42, 860 42, 040 41, 260 40, 520 39, 780 39, 080 38, 400 37, 740 6 37, 110 36, 490 35, 900 35, 330 34, 770 34, 230 33, 710 33, 200 32, 710 32, 230 7 31, 760 31, 310 30, 870 30, 440 30, 030 29, 620 29, 230 28, 850 28, 470 28, 110 8 27, 750 27, 400 27, 060 26, 730 26, 410 26, 100 25, 790 25, 490 25, 190 24, 910 9 24, 620 24, 350 24, 080 23, 820 23, 560 23, 310 23, 060 22, 820 22, 580 22, 350 10 22, 120 21, 890 21, 680 21, 460 21, 250 21, 040 20, 840 20, 640 20, 440 20, 250 11 20, 060 19, 880 19, 700 19, 520 19, 340 19, 170 19, 000 18, 830 18, 670 18, 510 12 18, 350 18, 190 18, 040 17, 890 17, 740 17, 590 17, 450 17, 310 17, 170 17, 030 13 16, 890 16, 760 16, 630 16, 500 16, 370 16, 240 16, 120 16, 000 15, 880 15, 760 14 15, 640 15, 530 15, 410 15, 300 15, 190 15, 080 14, 970 14, 870 14, 760 14, 660 15 14, 560 14, 450 14, 350 14, 260 14, 160 14, 060 13, 970 13, 870 13, 780 13, 690 16 13, 600 13, 510 13, 420 13, 340 13, 250 13, 170 13. 080 13, 000 12, 920 12, 840 17 12, 760 12, 680 12, 600 12, 520 12, 440 12, 370 12, 290 12, 220 12, 150 12, 070 18 12, 000 11, 930 11, 860 11, 790 11, 720 11, 660 11, 590 11, 520 11, 460 11, 390 19 11, 330 11, 260 11, 200 11, 140 11, 070 11, 010 10, 950 10, 890 10, 830 10, 770 20 10, 720 10, 660 10, 600 10, 540 10, 490 10, 430 10, 380 10, 320 10, 270 10, 210 21 10, 160 10, 110 10, 050 10, 000 9, 950 9, 900 9, 850 9, 800 9, 750 9, 700 22 9, 650 9, 600 9, 560 9, 510 9, 460 9, 420 9, 370 9, 320 9, 280 9, 230 23 9, 190 9, 140 9, 100 9, 060 9, 010 8, 970 8, 930 8, 880 8, 840 8, 800 24 8, 760 8, 720 8, 680 8, 640 8, 600 8, 560 8, 520 8, 480 8, 440 8, 400 25 8, 360 8, 330 8, 290 8, 250 8, 210 8, 180 8, 140 8, 100 8, 070 8, 030 26 8, 000 7, 960 7, 930 7, 890 7, 860 7, 820 7, 790 7, 750 7, 720 7, 690 27 7, 650 7, 620 7, 590 7, 560 7, 520 7, 490 7, 460 7, 430 7, 400 7, 370 28 7, 330 7, 300 7, 270 7, 240 7, 210 7, 180 7, 150 7, 120 7, 090 7, 060 29 7, 040 7, 010 6, 980 6, 950 6, 920 6, 890 6, 870 6, 840 6, 810 6, 780 30 6, 760 6, 730 6, 700 6, 670 6, 650 6, 620 6, 590 6, 570 6, 540 6, 520 31 6, 490 6, 470 6, 440 6, 410 6, 390 6, 360 6, 340 6, 310 6, 290 6, 270 32 6, 240 6, 220 6, 190 6, 170 6, 150 6, 120 6, 100 6, 080 6, 050 6, 030 33 6, 010 5, 980 5, 960 5, 940 5, 910 5, 890 5, 870 5, 850 5, 830 5, 800 34 5, 780 5, 760 5, 740 5, 720 5, 700 5, 670 5, 650 5, 630 5, 610 5, 590 35 5, 570 5, 550 5, 530 5, 510 5, 490 5, 470 5, 450 5, 430 5, 410 5, 390 36 5, 370 5, 350 5, 330 5, 310 5, 290 5, 270 5, 250 5, 230 5, 210 5, 190 37 5, 180 5, 160 5, 140 5, 120 5, 100 5, 080 5, 060 5, 050 5, 030 5, 010 38 4, 990 4, 970 4, 960 4, 940 4, 920 4, 900 4, 890 4, 870 4, 850 4, 830 39 4, 820 4, 800 4, 780 4, 770 4, 750 4, 730 4, 710 4, 700 4, 680 4, 660 40 4, 650 4, 630 4, 610 4, 600 4, 580 4, 570 4, 550 4, 530 4, 520 4, 500 41 4, 490 4, 470 4, 450 4, 440 4, 420 4, 410 4, 390 4, 380 4, 360 4, 350 42 4, 330 4, 320 4, 300 4, 290 4, 270 4, 260 4, 240 4, 230 4, 210 4, 200 43 4, 180 4, 170 4, 150 4, 140 4, 120 4, 110 4, 100 4, 080 4, 070 4, 050 44 4, 040 4, 020 4, 010 4, 000 3, 980 3, 970 3, 950 3, 940 3, 930 3, 910 45 3, 900 3, 890 3, 870 3, 860 3, 850 3, 830 3, 820 3, 810 3, 790 3, 780 46 3, 770 3, 750 3, 740 3, 730 3, 710 3, 700 3, 690 3, 680 3, 660 3, 650 47 3, 640 3, 620 3, 610 3, 600 3, 590 3, 570 3, 560 3, 550 3, 540 3, 520 40 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 19 minutes after release of balloon; altitude of balloon, 3,900 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.1 O.2 0.3 0.4 | 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 3, 510 3, 500 3, 490 3, 470 3, 460 3, 450 3, 440 3, 430 3, 410 3, 400 49 3, 390 3, 380 3, 370 3, 350 3, 340 3, 330 3, 320 3, 310 3, 300 3, 280 50 3, 270 3, 260 3, 250 3, 240 3, 230 3, 210 3, 200 3, 190 3, 180 3, 170 51 3, 160 3, 150 3, 140 3, 120 3, no 3, 100 3, 090 3, 080 3, 070 3, 060 52 3, 050 3, 040 3, 030 3, 010 3, 000 2, 990 2, 980 2, 970 2, 960 2, 950 53 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 880 2, 860 2, 850 2, 840 54 2, 830 2, 820 2, 810 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 55 2, 730 2, 720 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 56 2, 630 2, 620 2, 610 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 57 2, 530 2, 520 2, 510 2, 500 2, 490 2, 480 2, 470 2, 470 2, 460 2, 450 58 2, 440 2, 430 2, 420 2, 410 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 59 2, 340 2, 330 2, 320 2, 320 2, 310 2, 300 2, 290 2, 280 2, 270 2, 260 60 2, 250 2, 240 2, 230 2, 220 2, 220 2, 210 2, 200 2, 190 2, 180 2, 170 61 2, 160 2, 150 2, 140 2, 140 2, 130 2, 120 2, no 2, 100 2, 090 2, 080 62 2, 070 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 2, 000 2, 000 63 1, 990 1, 980 1, 970 1, 960 1, 950 1, 940 1, 940 1, 930 1, 920 C 910 64 1, 900 1, 890 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 840 li 830 65 1, 820 1, 810 1, 800 1, 790 1, 790 1, 780 1, 770 1, 760 1, 750 1, 740 66 1, 740 1, 730 1, 720 1, 710 1, 700 1, 700 1, 690 1, 680 1, 670 1, 660 67 1, 660 1, 650 1, 640 1, 630 1, 620 1, 620 1, 610 1, 600 1, 590 1, 580 68 1, 580 1, 570 1, 560 1, 550 1, 540 1, 540 1, 530 1, 520 1, 510 1, 510 69 1, 500 1, 490 1, 480 1, 470 1, 470 1, 460 1, 450 1, 440 1, 430 1, 430 70 1, 420 1, 410 1, 400 1, 400 1, 390 1, 380 1, 370 1, 370 1, 360 1, 350 71 1, 340 1, 340 1, 330 1, 320 1, 310 1, 300 1, 300 1, 2S0 1, 280 1, 270 72 1, 270 1, 260 1, 250 1, 240 1, 240 1, 230 1, 220 1, 210 1, 210 1, 200 73 1, 190 1, 180 1, 180 1, 170 1, 160 1, 160 1, 150 1, 140 1, 130 C 130 74 1, 120 1, 110 1, 100 1, 100 1, 090 1, 080 1, 070 1, 070 1, 060 1, 050 75 1, 040 1, 040 1, 030 1, 020 1, 020 1, 010 1, 000 990 990 980 76 970 970 960 950 940 940 930 920 910 910 77 900 890 890 880 870 860 860 850 840 840 78 830 820 810 810 800 790 790 780 770 770 79 760 750 740 740 730 720 720 710 700 690 80 690 680 670 670 660 650 650 640 630 620 81 620 610 600 600 590 580 580 570 560 550 82 550 540 530 530 520 510 510 500 490 490 83 480 470 460 460 450 440 440 430 420 420 84 410 400 400 390 380 380 370 360 350 350 85 340 330 330 320 310 310 300 290 290 280 86 270 270 260 250 250 240 230 230 220 210 87 200 200 190 180 180 170 160 160 150 140 88 140 130 120 120 no 100 100 90 80 70 89 | 70 60 50 50 401 30 30 20 10 10 41 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 20 minutes after release of balloon; altitude of balloon, 4,100 yards Elevation angle of balloon in degrees and tenths of a degree Degrees _ 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 46, 860 45, 920 45, 060 44, 200 43, 380 42, 600 41, 820 41, 080 40, 360 39, 680 6 39, 010 38, 360 37, 740 37, 140 36, 550 35, 990 35, 440 34, 900 34, 380 33, 880 7_ __ 33, 390 32, 920 32, 450 32, 010 31, 570 31, 140 30, 730 30, 320 29; 930 29; 550 8 29, 170 28, 810 28, 450 28, 100 27, 770 27, 430 27, 110 26, 790 26, 480 26, 180 9 25, 890 25, 600 25, 310 25, 040 24, 770 24, 500 24, 240 23, 990 23i 740 23i 490 10 23, 250 23, 020 22, 790 22, 560 22, 340 22, 120 21, 910 21, 700 21, 490 21, 290 11 21, 090 20, 900 20, 710 20, 520 20, 330 20, 150 19, 970 19, 800 19i 630 19, 460 12 19, 290 19, 120 18, 960 18, 800 18, 650 18, 490 18, 340 18, 190 18, 050 17, 900 13 17, 760 17, 620 17, 480 17, 340 17, 210 17, 080 16, 950 16, 820 16, 690 16, 570 14 16, 440 16, 320 16, 200 16, 090 15, 970 15, 850 15, 740 15, 630 15i 520 15; 410 15 15, 300 15, 200 15, 090 14, 990 14, 890 14, 780 14, 680 14, 590 14, 490 14, 390 16 14, 300 14, 200 14, 110 14, 020 13, 930 13, 840 13, 750 13, 670 13, 580 13, 490 17 13, 410 13, 330 13, 250 13, 160 13, 080 13, 000 12, 920 12, 850 12; 770 12; 690 18 12, 620 12, 540 12, 470 12, 400 12, 330 12, 250 12, 180 12, 110 12; 040 11, 980 19 11, 910 11, 840 11, 770 11, 710 11, 640 11, 580 11, 510 11, 450 li; 390 11, 330 20 11, 260 11, 200 11, 140 11, 080 11, 020 10, 970 10, 910 10, 850 10, 790 10, 740 21 10, 680 10, 630 10, 570 10, 520 10, 460 10, 410 10, 360 10, 300 io; 250 10, 200 22 10, 150 10, 100 10, 050 10, 000 9, 950 9, 900 9, 850 9, 800 9i 750 9i 710 23 9, 660 9, 610 9, 570 9, 520 9, 470 9, 430 9, 380 9, 340 9, 300 9, 250 24 9, 210 9, 170 9, 120 9, 080 9, 040 9, 000 8, 960 8, 910 8i 870 8i 830 25 8, 790 8, 750 8, 710 8, 670 8, 630 8, 600 8, 560 8, 520 8, 480 8, 440 26 8, 410 8, 370 8, 330 8, 300 8, 260 8, 220 8, 190 8, 150 8, 120 8, 080 27 8, 050 8, 010 7, 980 7, 940 7, 910 7, 880 7, 840 7, 810 7; 780 7' 740 28 7, 710 7, 680 7, 650 7, 610 7, 580 7, 550 7, 520 7, 490 7, 460 7, 430 29 7, 400 7, 370 7, 340 7, 310 7, 280 7, 250 7, 220 7, 190 7; 160 7, 130 30 7, 100 7, 070 7, 040 7, 020 6, 990 6, 960 6, 930 6, 910 6, 880 6, 850 31 6, 820 6, 800 6, 770 6, 740 6, 720 6, 690 6, 660 6, 640 6, 610 6i 590 32 6, 560 6, 540 6, 510 6, 490 6, 460 6, 440 6, 410 6, 390 6, 360 6, 340 33 6, 310 6, 290 6, 270 6, 240 6, 220 6, 190 6, 170 6, 150 6, 120 6, 100 34 6, 080 6, 060 6, 030 6, 010 5, 990 5, 970 5, 940 5, 920 5, 900 5; 880 35 5, 860 5, 830 5, 810 5, 790 5, 770 5, 750 5, 730 5, 710 5, 680 5, 660 36 5, 640 5, 620 5, 600 5, 580 5, 560 5, 540 5, 520 5, 500 5, 480 5; 460 37 5, 440 5, 420 5, 400 5, 380 5, 360 5, 340 5, 320 5, 300 5, 290 5, 270 38 5, 250 5, 230 5, 210 5, 190 5, 170 5, 150 5, 140 5, 120 5, 100 5, 080 39 5, 060 5, 050 5, 030 5, 010 4, 990 4, 970 4, 960 4, 940 4, 920 4, 900 40 4, 890 4, 870 4, 850 4, 830 4, 820 4, 800 4, 780 4, 770 4, 750 4, 730 41 4, 720 4, 700 4, 680 4, 670 4, 650 4, 630 4, 620 4, 600 4, 590 4, 570 42 4, 550 4, 540 4, 520 4, 510 4, 490 4, 470 4, 460 4, 440 4, 430 4, 410 43 4, 400 4, 380 4, 370 4, 350 4, 340 4, 320 4, 310 4, 290 4, 280 4, 260 44 4, 250 4, 230 4, 220 4, 200 4, 190 4, 170 4, 160 4, 140 4, 130 4, 110 45 4, 100 4, 090 4, 070 4, 060 4, 040 4, 030 4, 020 4, 000 3, 990 3, 970 46 3, 960 3, 950 3, 930 3, 920 3, 900 3, 890 3, 880 3, 860 3, 850 3, 840 47 3, 820 3, 810 3, 8001 3, 780 3, 770 3, 760 3, 740 3, 730 3, 720 3, 700 42 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 20 minutes after release of balloon; altitude of balloon, 4.,100 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.2 0.3 0.4 0.5 0.6 0.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 3, 690 3, 680 3, 670 3, 650 3, 640 3, 630 3, 610 3, 600 3, 590 3, 580 49 3, 560 3, 550 3, 540 3, 530 3, 510 3, 500 3, 490 3, 480 3, 460 3, 450 50 3, 440 3, 430 3, 420 3, 400 3, 390 3, 380 3, 370 3, 360 3, 340 3, 330 51 3, 320 3, 310 3, 300 3, 280 3, 270 3, 260 3, 250 3, 240 3, 230 3, 210 52 3, 200 3, 190 3, 180 3, 170 3, 160 3, 150 3, 130 3, 120 3, 110 3, 100 53 3, 090 3, 080 3, 070 3, 060 3, 050 3, 030 3, 020 3, 010 3, 000 2, 990 54 2, 980 2, 970 2, 960 2, 950 2, 940 2, 920 2, 910 2, 900 2, 890 2, 880 55 2, 870 2, 860 2, 850 2, 840 2, 830 2, 820 2, 810 2, 800 2, 790 2, 780 56 2, 770 2, 760 2, 740 2, 730 2, 720 2, 710 2, 700 2, 690 2, 680 2, 670 57 2, 660 2, 650 2, 640 2, 630 2, 620 2, 610 2, 600 2, 590 2, 580 2, 570 58 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 500 2, 490 2, 480 2, 470 59 2, 460 2, 450 2, 440 2, 430 2, 420 2, 410 2, 410 2, 400 2, 390 2, 380 60 2, 370 2, 360 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 2, 290 2, 280 61 2, 270 2, 260 2, 250 2, 240 2, 240 2, 230 2, 220 2, 210 2, 200 2, 190 62 2, 180 2, 170 2, 160 2, 150 2, 140 2, 130 2, 130 2, 120 2, 110 2, 100 63 2, 090 2, 080 2, 070 2, 060 2, 050 2, 040 2, 040 2, 030 2, 020 2, 010 64 2, 000 1, 990 1, 980 1, 970 1, 960 1, 960 1, 950 1, 940 1, 930 1, 920 65 1, 910 1, 900 1, 890 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 830 66 1, 830 1, 820 1, 810 1, 800 1, 790 1, 780 1, 770 1, 770 1, 760 1, 750 67 1, 740 1, 730 1, 720 1, 720 1, 710 1, 700 1, 690 1, 680 1, 670 1, 670 68 1, 660 1, 650 1, 640 1, 630 1, 620 1, 610 1, 610 1, 600 1, 590 1, 580 69 1, 570 1, 570 1, 560 1, 550 1, 540 1, 530 1, 520 1, 520 1, 510 1, 500 70 1, 490 1, 480 1, 480 1, 470 1, 460 1, 450 1, 440 1, 440 1, 430 1, 420 71 1, 410 1, 400 1, 400 1, 390 1, 380 1, 370 1, 360 1, 360 1, 350 1, 340 72 1, 330 1, 320 1, 320 1, 310 1, 300 1, 290 1, 280 1, 280 1, 270 1, 260 73 1, 250 1, 250 1, 240 1, 230 1, 220 1, 210 1, 210 1, 200 1, 190 1, 180 74 ■ 1, 180 1, 170 1, 160 1, 150 1, 140 1, 140 1, 130 1, 120 1, 110 1, 110 75 1, 100 1, 090 1, 080 1, 080 1, 070 1, 060 1, 050 1, 050 1, 040 1, 030 76 1, 020 1, 010 1, 010 1, 000 990 980 980 970 960 950 77 950 940 930 920 920 910 900 890 890 880 78 870 860 860 850 840 830 830 820 810 800 79 800 790 780 770 770 760 750 740 740 730 80 720 720 710 7-00 690 690 680 670 660 660 81 650 640 630 630 620 610 610 600 590 580 82 580 570 560 550 550 540 530 530 520 510 83 500 500 490 480 470 470 460 450 450 440 84 430 420 420 410 400 390 390 380 370 370 85 360 350 340 340 330 320 320 310 300 290 86 290 280 270 270 260 250 240 240 230 220 87 210 210 200 190 190 180 170 160 160 150 88 140 140 130 120 110 110 100 90 90 80 89 70 60 60 50 40 40 30 20 10 10 43 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 21 minutes after release of balloon; altitude of balloon, 4,300 yards Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l O.3 0.3 0.4 | O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5_. 6_. 7_. 8_. 9_ 10 11 12. 13 14. 49, 150 40, 910 35, 020 30, 600 27, 150 48, 160 40, 240 34, 520 30, 210 26, 850 47, 260 39, 580 34, 040 29, 840 26, 550 46, 350 38, 950 33, 570 29, 480 26, 260 45, 490 38, 340 33, 110 29, 120 25, 970 44, 680 37, 740 32, 660 28, 770 25, 700 43, 860 37, 160 32, 230 28, 430 25, 420 43, 090 36, 600 31, 800 28, 100 25, 160 42, 330 36, 060 31, 390 27, 780 24, 890 24, 390 22, 120 20, 230 18, 630 17, 250 24, 140 21, 920 20, 060 18, 480 17, 120 23, 900 21, 720 19, 890 18, 330 16, 990 23, 660 21, 520 19, 720 18, 190 16, 870 23, 430 21, 330 19, 560 18, 050 16, 750 23, 200 21, 140 19, 400 17, 910 16, 630 22, 980 20, 950 19, 240 17, 770 16, 510 22, 760 20, 760 19, 080 17, 640 16, 390 22, 540 20, 580 18, 930 17, 510 16, 270 41, 610 35, 530 30, 990 27, 460 24, 640 22, 330 20, 400 18, 770 17, 380 16, 160 15 16 17 18 19 20 21 22 23 24. 25. 26 27. 28. 29. 30. 31 32. 33. 34. 35. 36 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 16, 050 15, 000 14, 060 13, 230 12, 490 11, 810 11, 200 10, 640 10, 130 9, 660 9, 220 8, 820 8, 440 8, 090 7, 760 7, 450 7, 160 6, 880 6, 620 6, 380 6, 140 5, 920 5, 710 5, 500 5, 310 5, 120 4, 950 4, 780 4, 610 4, 450 4, 300 4, 150 4, 010 15, 940 14, 900 13, 980 13, 160 12, 420 11, 750 11, 140 10, 590 10, 080 9, 610 9, 180 8, 780 8, 400 8, 050 7, 730 7, 420 7, 130 6, 850 6, 600 6, 350 6, 120 5, 900 5, 690 5, 480 5, 290 5, 110 4, 930 4, 760 4, 590 4, 440 4, 280 4, 140 4, 000 15, 830 14, 800 13, 890 13, 080 12, 350 11, 690 11, 090 10, 540 10, 030 9, 570 9, 140 8, 740 8, 370 8, 020 7, 690 7, 390 7, 100 6, 830 6, 570 6, 330 6, 100 5, 880 5, 670 5, 460 5, 270 5, 090 4, 910 4, 740 4, 580 4, 420 4, 270 4, 120 3, 980 15, 720 14, 700 13, 810 13, 000 12, 280 11, 620 11, 030 10, 480 9, 980 9, 520 9, 100 8, 700 8, 330 7, 990 7, 660 7, 360 7, 070 6, 800 6, 550 6, 300 6, 070 5, 850 5, 640 5, 440 5, 250 5, 070 4, 890 4, 730 4, 560 4, 410 4, 260 4, 110 3, 970 15, 610 14, 610 13, 720 12, 930 12, 210 15, 510 14, 520 13, 640 12, 850 12, 140 11, 560 10, 970 10, 430 9, 940 9, 480 11, 500 10, 920 10, 380 9, 890 9, 440 9, 060 8, 660 8, 300 7, 950 7, 630 7, 330 7, 040 6, 780 6, 520 6, 280 6, 050 5, 830 5, 620 5, 430 5, 230 5, £50 4, 880 4, 710 4, 550 4, 390 4, 240 4, 090 3, 950 9, 010 8, 620 8, 260 7, 920 7, 600 7, 300 7, 020 6, 750 6, 500 6, 260 6, 030 5, 810 5, 600 5, 410 5, 220 5, 030 4, 860 4, 690 4, 530 4, 380 15, 400 14, 420 13, 560 12, 780 12, 080 11, 440 10, 860 10, 330 9, 840 9, 390 8, 970 8, 590 8, 230 7, 890 7, 570 7, 270 6, 990 . 6, 720 6, 470 6, 230 6, 010 5, 790 5, 580 5, 390 5, 200 5, 020 4, 840 4, 680 4, 520 4, 360 15, 300 14, 330 13, 470 12, 700 12, 010 11, 380 10, 810 10, 280 9, 800 9, 350 8, 930 8, 550 8, 190 7, 850 7, 540 7, 240 6, 960 6, 700 6, 450 6, 210 5, 980 5, 770 5, 560 5, 370 5, 180 5, 000 4, 830 4, 660 4, 500 4, 350 15, 200 14, 240 13, 390 12, 630 11, 940 11, 320 10, 750 10, 230 9, 750 9, 310 8, 890 8, 510 8, 160 7, 820 7, 510 7, 210 6, 940 6, 670 6, 420 6, 190 5, 960 5, 750 5, 540 5, 350 5, 160 4, 980 4, 810 4, 640 4, 480 4, 330 15, 100 14, 150 13, 310 12, 560 11, 880 11, 260 10, 700 10, 180 9, 700 9, 260 8, 860 8, 480 8, 120 7, 790 7, 480 7, 180 6, 910 6, 650 6, 400 6, 160 5, 940 5, 730 5, 520 5, 330 5, 140 4, 960 4, 790 4, 630 4, 470 4, 320 4, 230 4, 080 3, 940 4, 210 4, 070 3, 930 4, 200 4, 050 3, 910 4, 180 4, 040 3, 900 4, 170 4, 020 3, 890 44 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 21 minutes after release of balloon; altitude of balloon, 4,300 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 3, 870 3, 860 3, 840 3, 830 3, 820 3, 800 3, 790 3, 780 3, 760 3, 750 49 3, 740 3, 720 3, 710 3, 700 3, 690 3, 670 3, 660 3, 650 3, 630 3, 620 50 3, 610 3, 600 3, 580 3, 570 3, 560 3, 540 3, 530 3, 520 3, 510 3, 490 51 3, 480 3, 470 3, 460 3, 450 3, 430 3, 420 3, 410 3, 400 3, 380 3, 370 52 3, 360 3, 350 3, 340 3, 320 3, 310 3, 300 3, 290 3, 280 3, 260 3, 250 53 3, 240 3, 230 3, 220 3, 210 3, 190 3, 180 3, 170 3, 160 3, 150 3, 140 54 3, 120 3, 110 3, 100 3, 090 3, 080 3, 070 3, 060 3, 040 3, 030 3, 020 55 3, 010 3, 000 2, 990 2, 980 2, 970 2, 960 2, 940 2, 930 2, 920 2, 910 56 2, 900 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 2, 820 2, 810 2, 800 57 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 720 2, 710 2, 700 58 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 620 2, 610 2, 600 2, 590 59 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 500 2, 490 60 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 410 2, 400 2, 390 61 2, 380 2, 370 2, 360 2, 350 2, 340 2, 330 2, 330 2, 320 2, 310 2, 300 62 2, 290 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 63 2, 190 2, 180 2, 170 2, 160 2, 150 2, 140 2, 130 2, 130 2, 120 2, 110 64 2, 100 2, 090 2, 080 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 65 2, 010 2, 000 1, 990 1, 980 1, 970 1, 960 1, 950 1, 940 1, 930 1, 920 66 1, 910 1, 910 1, 900 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 830 67 1, 830 1, 820 1, 810 1, 800 1, 790 1, 780 1, 770 1, 760 1, 750 1, 750 68 1, 740 1, 730 1, 720 1, 710 1, 700 1, 690 1, 690 1, 680 1, 670 1, 660 69 1, 650 1, 640 1, 630 1, 620 1, 620 1, 610 1, 600 1, 590 1, 580 1, 570 70 1, 570 1, 560 1, 550 1, 540 1, 530 1, 520 1, 510 1, 510 1, 500 1, 490 71 1, 480 1, 470 1, 460 1, 460 1, 450 1, 440 1, 430 1, 420 1, 410 1,410 72 1, 400 1, 390 1, 380 1, 370 1, 360 1, 360 1, 350 1, 340 1, 330 1, 320 73 1, 310 1, 310 1, 300 1, 290 1, 280 1, 270 1, 270 1, 260 1, 250 1, 240 74 1, 230 1, 230 1, 220 1, 210 1, 200 1, 190 1, 180 1, 180 1, 170 1, 160 75 1, 150 1, 140 1, 140 1, 130 1, 120 1, 110 1, 100 1, 100 1, 090 1, 080 76 1, 070 1, 060 1, 060 1, 050 1, 040 1, 030 1, 020 1, 020 1, 010 1, 000 77 990 980 980 970 960 950 950 940 930 920 78 910 910 900 890 880 880 870 860 850 840 79 840 830 820 810 800 800 790 780 770 770 80 760 750 740 730 730 720 710 700 700 690 81 680 670 670 660 650 640 640 630 620 610 82 600 600 590 580 570 570 560 550 540 540 83 530 520 510 510 500 490 480 470 470 460 84 450 440 440 430 420 410 410 400 390 380 85 380 370 360 350 350 340 330 320 320 310 86 300 290 290 280 270 260 260 250 240 230 87 230 220 210 200 200 • 190 180 170 170 160 88 150 140 140 130 120 110 100 100 90 80 89 80 70 60 50 50 40 30 20 20 10 45 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 22 minutes after release of balloon; altitude of balloon, 4,500 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 51, 440 50, 400 49, 450 48, 510 47, 610 46, 760 45, 900 45, 090 44, 300 43, 550 6 42, 810 42, 110 41, 420 40, 760 40, 120 39, 500 38, 890 38, 310 37, 740 37, 190 7 36, 650 36, 130 35, 620 35, 130 34, 650 34, 180 33, 730 33, 280 32, 850 32^ 430 8 32, 020 31, 620 31, 230 30, 850 30, 470 30, 110 29, 750 29, 410 29, 070 28, 740 9 28, 410 28, 090 27, 780 27, 480 27, 180 26, 890 26, 610 26, 330 26, 050 25, 780 10 25, 520 25, 260 25, 010 24, 760 24, 520 24, 280 24, 050 23, 820 23, 590 23, 370 11 23, 150 22, 940 22, 730 22, 520 22, 320 22, 120 21, 920 21, 730 21, 540 21, 350 12 21, 170 20, 990 20, 810 20, 640 20, 470 20, 300 20, 130 19, 970 19, 810 19; 650 13 19, 490 19, 340 19, 190 19, 040 18, 890 18, 740 18, 600 18, 460 18, 320 18, 180 14 18, 050 17, 920 17, 780 17, 650 17, 530 17, 400 17, 280 17, 150 17, 030 16, 910 15 16, 790 16, 680 16, 560 16, 450 16, 340 16, 230 16, 120 16, 010 15, 900 15, 800 16 15, 690 15, 590 15, 490 15, 390 15, 290 15, 190 15, 090 15, 000 14, 900 14, 810 17 14, 720 14, 630 14, 540 14, 450 14, 360 14, 270 14, 190 14, 100 14, 020 13, 930 18 13, 850 13, 770 13, 690 13, 610 13, 530 13, 450 13, 370 13, 290 13, 220 13, 140 19 13, 070 13, 000 12, 920 12, 850 12, 780 12, 710 12, 640 12, 570 12, 500 12, 430 20 12, 360 12, 300 12, 230 12, 170 12, 100 12, 040 11, 970 11, 910 11, 850 11, 780 21 11, 720 11, 660 11, 600 11, 540 11, 480 11, 420 11, 370 11, 310 11, 250 li; 190 22 11, 140 11, 080 11, 030 10, 970 10, 920 11, 860 10, 810 10, 760 10, 710 10, 650 23 10, 600 10, 550 10, 500 10, 450 10, 400 10, 350 10, 300 10, 250 10, 200 10, 150 24 10, 110 10, 060 10, 010 9, 970 9, 920 9, 870 9, 830 9, 780 9, 740 9, 690 25 9, 650 9, 610 9, 560 9, 520 9, 480 9, 430 9, 390 9, 350 9, 310 9, 270 26 9, 230 9, 190 9, 150 9, 100 9, 070 9, 030 8, 990 8, 950 8, 910 8, 870 27 8, 830 8, 790 8, 760 8, 720 8, 680 8, 640 8, 610 8, 570 8, 540 8, 500 28 8, 460 8, 430 8, 390 8, 360 8, 320 8, 290 8, 250 8, 220 8, 190 8, 150 29 8, 120 8, 080 8, 050 8, 020 7, 990 7, 950 7, 920 7, 890 7, 860 7, 830 30 7, 790 7, 760 7, 730 7, 700 7, 670 7, 640 7, 610 7, 580 7, 550 7, 520 31 7, 490 7, 460 7, 430 7, 400 7, 370 7, 340 7, 310 7, 290 7, 260 7, 230 32 7, 200 7, 170 7, 150 7, 120 7, 090 7, 060 7, 040 7, 010 6, 980 6, 960 33 6, 930 6, 900 6, 880 6, 850 6, 820 6, 800 6, 770 6, 750 6, 720 6, 700 34 6, 670 6, 650 6, 620 6, 600 6, 570 6, 550 6, 520 6, 500 6, 470 6, 450 35 6, 430 6, 400 6, 380 6, 360 6, 330 6, 310 6, 290 6, 260 6, 240 6, 220 36 6, 190 6, 170 6, 150 6, 130 6, 100 6, 080 6, 060 6, 040 6, 020 5, 990 37 5, 970 5, 950 5, 930 5, 910 5, 890 5, 860 5, 840 5, 820 5, 800 5, 780 38 5, 760 5, 740 5, 720 5, 700 5, 680 5, 660 5, 640 5, 620 5, 600 5, 580 39 5, 560 5, 540 5, 520 5, 500 5, 480 5, 460 5, 440 5, 420 5, 400 5, 380 40 5, 360 5, 340 5, 320 5, 310 5, 290 5, 270 5, 250 5, 230 5, 210 5, 190 41 5, 180 5, 160 5, 140 5, 120 5, 100 5, 090 5, 070 5, 050 5, 030 5, 020 42 5, 000 4, 980 4, 960 4, 950 4, 930 4, 910 4, 890 4, 880 4, 860 4, 840 43 4, 830 4, 810 4, 790 4, 780 4, 760 4, 740 4, 730 4, 710 4, 690 4, 680 44 4, 660 4, 640 4, 630 4, 610 4, 600 4, 580 4, 560 4, 550 4, 530 4, 520 45 4, 500 4, 480 4, 470 4, 450 4, 440 4, 420 4, 410 4, 390 4, 380 4, 360 46 4, 350 4, 330 4, 320 4, 300 4, 290 4, 270 4, 260 4, 240 4, 230 4, 210 47 4, 200 4, 180 4, 170 4, 150 4, 140 4, 120 4, 110 4, 090 4, 080 4, 070 46 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 22 minutes after release of balloon; altitude of balloon 4,500 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.S 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 4, 050 4, 040 4, 020 4, 010 4, 000 3, 980 3, 970 3, 950 3, 940 3, 930 49 3, 910 3, 900 3, 880 3, 870 3, 860 3, 840 3, 830 3, 820 3, 800 3, 790 50 3, 780 3, 760 3, 750 3, 740 3, 720 3, 710 3, 700 3, 680 3, 670 3, 660 51 3, 640 3, 630 3, 620 3, 610 3, 590 3, 580 3, 570 3, 550 3, 540 3, 530 52 3, 520 3, 500 3, 490 3, 480 3, 470 3, 450 3, 440 3, 430 3, 420 3, 400 53 3, 390 3, 380 3, 370 3, 350 3, 340 3, 330 3, 320 3, 310 3, 290 3, 280 54 3, 270 3, 260 3, 250 3, 230 3, 220 3, 210 3, 200 3, 190 3, 170 3, 160 55 3, 150 3, 140 3, 130 3, 120 3, 100 3, 090 3, 080 3, 070 3, 060 3, 050 56 3, 040 3, 020 3, 010 3, 000 2, 990 2, 980 2, 970 2, 960 2, 940 2, 930 57 2, 920 2, 910 2, 900 2, 890 2, 880 2, 870 2, 860 2, 840 2, 830 2, 820 58 2, 810 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 2, 710 59 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 2, 610 60 2, 600 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 500 61 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 410 2, 400 62 2, 390 2, 380 2, 370 2, 360 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 63 2, 290 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 64 2, 190 2, 190 2, 180 2, 170 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 65 2, 100 2, 090 2, 080 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 66 2, 000 1, 990 1, 980 1, 980 1, 970 1, 960 1, 950 1, 940 1, 930 1, 920 67 1, 910 1, 900 1, 890 1, 880 1, 870 1, 860 1, 850 1, 850 1, 840 1, 830 68 1, 820 1, 810 1, 800 1, 790 1, 780 1, 770 1, 760 1, 750 1, 750 1, 740 69 1, 730 1, 720 1, 710 1, 700 1, 690 1, 680 1, 670 1, 660 1, 660 1, 650 70 1, 640 1, 630 1, 620 1, 610 1, 600 1, 590 1, 580 1, 580 1, 570 1, 560 71 1, 550 1, 540 1, 530 1, 520 1, 510 1, 510 1, 500 1, 490 1, 480 1, 470 72 1, 460 1, 450 1, 440 1, 440 1, 430 1, 420 1, 410 1, 400 1, 390 1, 380 73 1, 380 1, 370 1, 360 1, 350 1, 340 1, 330 1, 320 1, 320 1, 310 1, 300 74 1, 290 1, 280 1, 270 1, 260 1, 260 1, 250 1, 240 1, 230 1, 220 1, 210 75 1, 210 1, 200 1, 190 1, 180 1, 170 1, 160 1, 160 1, 150 1, 140 1, 130 76 1, 120 1, 110 1, 110 1, 100 1, 090 1, 080 1, 070 1, 060 1, 060 1, 050 77 1, 040 1, 030 1, 020 1, 010 1, 010 1, 000 990 980 970 960 78 960 950 940 930 920 920 910 900 890 880 79 870 870 860 850 840 830 830 820 810 800 80 790 790 780 770 760 750 740 740 730 720 81 710 700 700 690 680 670 660 660 650 640 82 630 620 620 610 600 590 580 580 570 560 83 550 540 540 530 520 510 500 500 490 480 84 ' 470 460 460 450 440 430 430 420 410 400 85 390 390 380 370 360 350 350 340 330 320 86 310 310 300 290 280 280 270 260 250 240 87 240 230 220 210 200 200 190 180 170 170 88 160 150 140 130 130 120 110 100 90 90 89 I 801 701 60 50 50 40 30 20 20 10 47 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 23 minutes after release of balloon; altitude of balloon, 4,700 yards Elevation angle of balloon in degrees and tenths of a degree Degrees._ 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 53, 720 52, 640 51, 650 50, 670 49, 730 48, 830 47, 940 47, 090 46, 270 45, 480 6 44, 720 43, 980 43, 260 42, 570 41, 900 41, 250 40, 620 40, 010 39, 420 38; 840 7__ 38, 280 37, 73C 37, 200 36, 690 36, 190 35 700 35 230 34 760 34 310 32 870 8 33i 440 33; 020 32, 620 32, 220 31, 830 31, 450 31’ 080 30' 710 30, 360 30, 010 9 29, 670 29, 340 29, 020 28, 700 28, 390 28, 090 27, 790 27, 500 27, 210 26, 930 10 26, 660 26, 390 26, 120 25, 860 25, 610 25, 360 25, 110 24, 870 24, 640 24, 410 11 24, 180 23, 960 23, 740 23, 520 23, 310 23, 100 22, 900 22, 700 22, 500 22, 300 12 22, 110 21, 920 21, 740 21, 560 21, 380 21, 200 21, 030 20, 860 20, 690 20, 520 13 20, 360 20, 200 20, 040 19, 880 19, 730 19, 580 19, 430 19, 280 19, 140 18, 990 14 18, 850 18, 710 18, 570 18, 440 18, 310 18, 170 18, 040 17, 920 17, 790 17; 660 15 17, 540 17, 420 17, 300 17, 180 17, 060 16, 950 16, 830 16, 720 16, 610 16, 500 16 16, 390 16, 280 16, 180 16, 070 15, 970 15, 870 15, 770 15, 670 15, 570 15; 470 17 15, 370 15, 280 15, 180 15, 090 15, 000 14, 910 14, 820 14, 730 14, 640 14, 550 18 14, 470 14, 380 14, 300 14, 210 14, 130 14, 050 13, 970 13, 890 13, 810 13, 730 19 13, 650 13, 570 13, 500 13, 420 13, 350 13, 270 13, 200 13, 130 13, 050 12, 980 20 12, 910 12, 840 12, 770 12, 710 12, 640 12, 570 12, 500 12, 440 12, 370 12, 310 21 12, 240 12, 180 12, 120 12, 060 11, 990 11, 930 11, 870 11, 810 11, 750 11, 690 22 11, 630 11, 570 11, 520 11, 460 11, 400 11, 350 11, 290 11, 240 11, 180 11, 130 23 11, 070 11, 020 10, 970 10, 910 10, 860 10, 810 10, 760 10, 710 10, 660 10, 610 24 10, 560 10, 510 10, 460 10, 410 10, 360 10, 310 10, 270 10, 220 10, 170 10, 130 25 10, 080 10, 030 9, 990 9, 940 9, 900 9, 850 9, 810 9, 770 9, 720 9, 680 26 9, 640 9, 590 9, 550 9, 510 9, 470 9, 430 9, 390 9, 350 9, 300 9, 260 27 9, 220 9, 180 9, 150 9, 110 9, 070 9, 030 8, 990 8, 950 8, 910 8, 880 28 8, 840 8, 800 8, 770 8, 730 8, 690 8, 660 8, 620 8, 580 8, 550 8, 510 29 8, 480 8, 440 8, 410 8, 380 8, 340 8, 310 8, 270 8, 240 8, 210 8; 170 30 8, 140 8, 110 8, 080 8, 040 8, 010 7, 980 7, 950 7, 920 7, 880 7, 850 31 7, 820 7, 790 7, 760 7, 730 7, 700 7, 670 7, 640 7, 610 7, 580 7, 550 32 7, 520 7, 490 7, 460 7, 430 7, 410 7, 380 7, 350 7, 320 7, 290 7, 270 33 7, 240 7, 210 7, 180 7, 160 7, 130 7, 100 7, 070 7, 050 7, 020 6, 990 34 6, 970 6, 940 6, 920 6, 890 6, 860 6, 840 6, 810 6, 790 6, 760 6, 740 35 6, 710 6, 690 6, 660 6, 640 6, 610 6, 590 6, 560 6, 540 6, 520 6, 490 36 6, 470 6, 450 6, 420 6, 400 6, 380 6, 350 6, 330 6, 310 6, 280 6, 260 37 6, 240 6, 210 6, 190 6, 170 6, 150 6, 130 6, 100 6, 080 6, 060 6, 040 38 6, 020 5, 990 5, 970 5, 950 5, 930 5, 910 5, 890 5, 870 5, 850 5, 820 39 5, 800 5, 780 5, 760 5, 740 5, 720 5, 700 5, 680 5, 660 5, 640 5, 620 40 5, 600 5, 580 5, 560 5, 540 5, 520 5, 500 5, 480 5, 460 5, 440 5, 430 41 5, 410 5, 390 5, 370 5, 350 5, 330 5, 310 5, 290 5, 280 5, 260 5, 240 42 5, 220 5, 200 5, 180 5, 170 5, 150 5, 130 5, 110 5, 090 5, 080 5, 060 43 5, 040 5, 020 5, 010 4, 990 4, 970 4, 950 4, 940 4, 920 4, 900 4, 880 44 4, 870 4, 850 4, 830 4, 820 4, 800 4, 780 4, 770 4, 750 4, 730 4, 720 45 4, 700 4, 680 4, 670 4, 650 4, 630 4, 620 4, 600 4, 590 4, 570 4, 550 46 4, 540 4, 520 4, 510 4, 490 4, 480 4, 460 4, 440 4, 430 4, 410 4, 400 47 4, 380 4, 370 4, 350 4, 340 4, 320 4, 310 4, 290 4, 280 4, 260 4, 250 48 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 23 minutes after release of balloon; altitude of balloon, 4,700 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 4, 230 4, 220 4, 200 4, 190 4, 170 4, 160 4, 140 4, 130 4, 110 4, 100 49 4, 090 4, 070 4, 060 4, 040 4, 030 4, 010 4, 000 3, 990 3, 970 3, 960 50 3, 940 3, 930 3, 920 3, 900 3, 890 3, 870 3, 860 3, 850 3, 830 3, 820 51 3, 810 3, 790 3, 780 3, 770 3, 750 3, 740 3, 730 3, 710 3, 700 3, 690 52 3, 670 3, 660 3, 650 3, 630 3, 620 3, 610 3, 590 3, 580 3, 570 3, 550 53 3, 540 3, 530 3, 520 3, 500 3, 490 3, 480 3, 470 3, 450 3, 440 3, 430 54 3, 410 3, 400 3, 390 3, 380 3, 360 3, 350 3, 340 3, 330 3, 320 3, 300 55 3, 290 3, 280 3, 270 3, 250 3, 240 3, 230 3, 220 3, 210 3, 190 3, 180 56 3, 170 3, 160 3, 150 3, 130 3, 120 3, 110 3, 100 3, 090 3, 080 3, 060 57 3, 050 3, 040 3, 030 3, 020 3, 010 2, 990 2, 980 2, 970 2, 960 2, 950 58 2, 940 2, 930 2, 910 2, 900 2, 890 2, 880 2, 870 2, 860 2, 850 2, 840 59 2, 820 2, 810 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 720 60 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 61 2, 610 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 62 2, 500 2, 490 2, 480 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 400 63 2, 390 2, 380 2, 370 2, 360 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 64 2, 290 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 65 2, 190 2, 180 2, 170 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 2, 100 66 2, 090 2, 080 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 2, 000 67 2, 000 1, 990 1, 980 1, 970 1, 960 1, 950 1, 940 1, 930 1, 920 1, 910 68 1, 900 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 830 1, 820 1, 810 69 1, 800 1, 790 1, 790 1, 780 1, 770 1, 760 1, 750 1, 740 1, 730 1, 720 70 1, 710 1, 700 1, 690 1, 680 1, 670 1, 660 1, 660 1, 650 1, 640 1, 630 71 1, 620 1, 610 1, 600 1, 590 1, 580 1, 570 1, 560 1, 550 1, 550 1, 540 72 1, 530 1, 520 1, 510 1, 500 1, 490 1, 480 1, 470 1, 460 1, 460 1, 450 73 1, 440 1, 430 1, 420 1, 410 1, 400 1, 390 1, 380 1, 370 1, 370 1, 360 74 1, 350 1, 340 1, 330 1, 320 1, 310 1, 300 1, 290 1, 290 1, 280 1, 270 75 1, 260 1, 250 1, 240 1, 230 1, 220 1, 220 1, 210 1, 200 1, 190 1, 180 76 1, 170 1, 160 1, 150 1, 150 1, 140 1, 130 1, 120 1, 110 1, 100 1, 090 77 1, 090 1, 080 1, 070 1, 060 1, 050 1, 040 1, 030 1, 020 1, 020 1, 010 78 1, 000 990 980 970 960 960 950 940 930 920 79 910 910 900 890 880 870 860 850 850 840 80 830 820 810 800 790 790 780 770 760 750 81 740 740 730 720 710 700 690 690 680 670 82 660 650 640 640 630 620 610 600 590 590 83 580 570 560 550 540 540 530 520 510 500 84 490 490 480 470 460 450 440 440 430 420 85 410 400 390 390 380 370 360 350 340 340 86 330 320 310 300 300 290 280 270 260 250 87 250 240 230 220 210 210 200 190 180 170 88 160 160 150 140 130 120 110 110 100 90 89 80 70 70 60 50 40 30 20 20 10 49 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 24 minutes after release of balloon; altitude of balloon, 4,900 yards Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l 0.2 0.3 0.4 0.5 0.6 0.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 56, 010 54, 880 53, 850 52, 820 51, 840 50, 910 49, 980 49 100 48 240 47 420 6_ 46, 620 45; 850 45, 110 44, 380 43; 680 43, 010 42, 350 41 710 41 090 40 490 7 39, 910 39; 340 38; 790 38; 250 37; 730 37, 220 36, 720 36’ 240 35 770 35 310 8 34, 870 34, 430 34, 000 33, 590 33; 180 32; 790 32, 400 32 020 31 650 31 290 9 30; 940 30, 590 30, 250 29; 920 29; 600 29, 280 28 970 28’ 670 28’ 370 28 080 10 27, 790 27, 510 27, 230 26, 960 26, 700 26, 440 26, 180 25, 930 25, 690 25, 450 11 25, 210 24, 980 24, 750 24, 520 24, 300 24, 080 23, 870 23, 660 23, 450 23, 250 12 23, 050 22, 860 22, 660 22, 470 22, 290 22, 100 21, 920 21, 740 21, 570 21, 390 13 21, 220 21, 060 20, 890 20, 730 20, 570 20, 410 20, 250 20, 100 19, 950 19; 800 14 19, 650 19, 510 19, 360 19, 220 19, 080 18, 950 18, 810 18, 680 18, 550 18; 420 15 18, 290 18, 160 18, 030 17, 910 17, 790 17, 670 17, 550 17, 430 17, 320 17, 200 16 17, 090 16, 980 16, 870 16, 760 16, 650 16, 540 16, 440 16, 330 16, 230 16, 130 17 16, 030 15, 930 15, 830 15, 730 15, 640 15, 540 15, 450 15, 350 15, 260 15, 170 18 15, 080 14, 990 14, 900 14, 820 14, 730 14, 640 14, 560 14, 480 14, 390 14, 310 19 14, 230 14, 150 14, 070 13, 990 13, 910 13, 840 13, 760 13, 690 13, 610 13, 540 20 13, 460 13, 390 13, 320 13, 250 13, 180 13, 110 13, 040 12, 970 12, 900 12, 830 21 12, 760 12, 700 12, 630 12, 570 12, 500 12, 440 12, 380 12, 310 12, 250 12, 190 22 12, 130 12, 070 12, 010 11, 950 11, 890 11, 830 11, 770 11, 710 11, 660 11, 600 23 11, 540 11, 490 11, 430 11, 380 11, 320 11, 270 11, 220 11, 160 11, 110 11, 060 24 11, 010 10, 950 10, 900 10, 850 10, 800 10, 750 10, 700 10, 650 10, 600 10, 560 25 10, 510 10, 460 10, 410 10, 370 10, 320 10, 270 10, 230 10, 180 10, 140 10, 090 26 10, 050 10, 000 9, 960 9, 910 9, 870 9, 830 9, 790 9, 740 9, 700 9, 660 27 9, 620 9, 580 9, 530 9, 490 9, 450 9, 410 9, 370 9, 330 9, 290 9, 250 28 9, 220 9, 180 9, 140 9, 100 9, 060 9, 020 8, 990 8, 950 8, 910 8, 880 29 8, 840 8, 800 8, 770 8, 730 8, 700 8, 660 8, 630 8, 590 8, 560 8, 520 30 8, 490 8, 450 8, 420 8, 390 8, 350 8, 320 8, 290 8, 250 8, 220 8, 190 31 8, 160 8, 120 8, 090 8, 060 8, 030 8, 000 7, 960 7, 930 7, 900 7, 870 32 7, 840 7, 810 7, 780 7, 750 7, 720 7, 690 7, 660 7, 630 7, 600 7, 570 33 7, 550 7, 520 7, 490 7, 460 7, 430 7, 400 7, 370 7, 350 7, 320 7, 290 34 7, 260 7, 240 7, 210 7, 180 7, 160 7, 130 7, 100 7, 080 7, 050 7, 020 35 7, 000 6, 970 6, 950 6, 920 6, 890 6, 870 6, 840 6, 820 6, 790 6, 770 36 6, 740 6, 720 6, 690 6, 670 6, 650 6, 620 6, 600 6, 570 6, 550 6, 530 37 6, 500 6, 480 6, 460 6, 430 6, 410 6, 390 6, 360 6, 340 6, 320 6, 290 38 6, 270 6, 250 6, 230 6, 200 6, 180 6, 160 6, 140 6, 120 6, 090 6, 070 39 6, 050 6, 030 6, 010 5, 990 5, 970 5, 940 5, 920 5, 900 5, 880 5, 860 40 5, 840 5, 820 5, 800 5, 780 5, 760 5, 740 5, 720 5, 700 5, 680 5, 660 41 5, 640 5, 620 5, 600 5, 580 5, 560 5, 540 5, 520 5, 500 5, 480 5, 460 42 5, 440 5, 420 5, 400 5, 390 5, 370 5, 350 5, 330 5, 310 5, 290 5, 270 43 5, 250 5, 240 5, 220 5, 200 5, 180 5, 160 5, 150 5, 130 5, 110 5, 090 44 5, 070 5, 060 5, 040 5, 020 5, 000 4, 990 4, 970 4, 950 4, 930 4, 920 45 4, 900 4, 880 4, 870 4, 850 4, 830 4, 820 4, 800 4, 780 4, 770 4, 750 46 4, 730 4, 720 4, 700 4, 680 4, 670 4, 650 4, 630 4, 620 4, 600 4, 590 47 4, 570 4, 550 4, 540 4, 520 4, 510 4, 490 4, 470 4, 460 4, 440 4, 430 50 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 24 minutes after release of balloon; altitude of balloon, 4,900 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 4, 410 4, 400 4, 380 4, 370 4, 350 4, 340 4, 320 4, 300 4, 290 4, 270 49 4, 260 4, 240 4, 230 4, 210 4, 200 4, 190 4, 170 4, 160 4, 140 4, 130 50 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 4, 020 4, 010 4, 000 3, 980 51 3, 970 3, 950 3, 940 3, 930 3, 910 3, 900 3, 880 3, 870 3, 860 3, 840 52 3, 830 3, 810 3, 800 3, 790 3, 770 3, 760 3, 750 3, 730 3, 720 3, 710 53 3, 690 3, 680 3, 670 3, 650 3, 640 3, 630 3, 610 3, 600 3, 590 3, 570 54 3, 560 3, 550 3, 530 3, 520 3, 510 3, 500 3, 480 3, 470 3, 460 3, 440 55 3, 430 3, 420 3,410 3, 390 3, 380 3, 370 3, 360 3, 340 3, 330 3, 320 56 3, 310 3, 290 3, 280 3, 270 3, 260 3, 240 3, 230 3, 220 3, 210 3, 190 57 3, 180 3, 170 3, 160 3, 150 3, 130 3, 120 3, 110 3, 100 3, 090 3, 070 58 3, 060 3, 050 3, 040 3, 030 3, 010 3, 000 2, 990 2, 980 2, 970 2, 960 59 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 870 2, 860 2, 850 2, 840 60 2, 830 2, 820 2, 810 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 730 61 2, 720 2, 700 2, 690 2, 680 2, 670 2, 660 2, 650 2, 640 2, 630 2, 620 62 2, 610 2, 590 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 63 2, 500 2, 490 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 410 2, 400 64 2, 390 2, 380 2, 370 2, 360 2, 350 2, 340 2, 330 2, 320 2, 310 2, 300 65 2, 280 2, 270 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 2, 190 66 2, 180 2, 170 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 2, 100 2, 090 67 2, 080 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 2, 000 1, 990 68 1, 980 1, 970 1, 960 1, 950 1, 940 1, 930 1, 920 1, 910 1, 900 1, 890 69 1, 880 1, 870 1, 860 1, 850 1, 840 1, 830 1, 820 1, 810 1, 800 1, 790 70 1, 780 1, 770 1, 760 1, 750 1, 740 1, 740 1, 730 1, 720 1,710 1, 700 71 1, 690 1, 680 1, 670 1, 660 1, 650 1, 640 1, 630 1, 620 1, 610 1, 600 72 1, 590 1, 580 1, 570 1, 560 1, 550 1, 540 1, 540 1, 530 1, 520 1, 510 73 1, 500 1, 490 1, 480 1, 470 1, 460 1, 450 1, 440 1, 430 1, 420 1, 410 74 1, 400 1, 400 1, 390 1, 380 1, 370 1, 360 1, 350 1, 340 1, 330 1, 320 75 1, 310 1, 300 1, 290 1, 290 1, 280 1, 270 1, 260 1, 250 1, 240 1, 230 76 1, 220 1, 210 1, 200 1, 190 1, 190 1, 180 1, 170 1, 160 1, 150 1, 140 77 1, 130 1, 120 1, 110 1, 100 1, 100 1, 090 1, 080 1, 070 1, 060 1, 050 78 1, 040 1, 030 1, 020 1, 010 1, 010 1, 000 990 980 970 ' 960 79 950 940 930 930 920 910 900 890 880 870 80 860 860 850 840 830 820 810 800 790 780 81 780 770 760 750 740 730 720 710 710 700 82 690 680 670 660 650 650 640 630 620 610 83 600 590 580 580 570 560 550 540 ■530 520 84 510 510 500 490 480 470 460 450 450 440 85 430 420 410 400 390 390 380 370 360 350 86 340 330 330 320 310 300 290 280 270 270 87 260 250 240 230 220 210 210 200 190 180 88 170 160 150 150 140 130 120 110 100 90 89 90 80 70 60 50 40 30 30 20 10 51 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 25 minutes after release of balloon; altitude of balloon, 5,100 yards Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5— 6_._ 7___ 8___ 9___ 58, 290 48, 520 41, 540 36, 290 32, 200 57, 120 47, 720 40, 950 35, 830 31, 840 56, 050 46, 950 40, 370 35, 390 31, 490 54, 980 46, 200 39, 810 34, 960 31, 140 53, 960 45, 470 39, 270 34, 540 30, 810 10_____ 11_____ 12_____ 13_____ 14_____ 15_____ 16_____ 17_____ 18_____ 19_____ 20_____ 21_____ 22_____ 23_____ 24_____ 25_____ 26_____ 27_____ 28_____ 29_____ 30_____ 31_____ 32_____ 33_____ 34_____ 35_____ 36_____ 37_____ 38_____ 39_____ 40_____ 41_____ 42_____ 43_____ 44_____ 45_____ 46_____ 47_____i 28, 920 26, 240 23, 990 22, 090 20, 460 19, 030 17, 790 16, 680 15, 700 14, 810 14, 010 13, 290 12, 620 12, 020 11, 450 10, 940 10, 460 10, 010 9, 590 9, 200 8, 830 8, 490 8, 160 7, 850 7, 560 7, 280 7, 020 6, 770 6, 530 6, 300 6, 080 5, 870 5, 660 5, 470 5, 280 5, 100 4, 930 4, 760 28, 630 28, 340 28, 060 27, 790 25, 990 23, 790 21, 920 20, 300 18, 900 17, 670 16, 580 15, 600 14, 730 13, 940 13, 220 12, 560 11, 960 11, 400 10, 890 10, 410 9, 970 9, 550 9, 160 8, 800 8, 450 8, 130 7, 820 7, 530 7, 260 6, 990 6, 740 6, 500 6, 280 6, 060 5, 850 5, 640 5, 450 5, 260 5, 080 4, 910 4, 740 25, 760 23, 590 21, 740 20, 160 18, 770 17, 550 16, 480 15, 510 14, 650 13, 860 13, 150 12, 500 11, 900 11, 350 10, 840 10, 360 9, 920 9, 510 9, 130 8, 760 8, 420 8, 100 7, 790 7, 500 7, 230 6, 970 6, 720 6, 480 6, 250 6, 030 5, 830 5, 620 5, 430 5, 240 5, 060 4, 890 4, 720 25, 520 23, 390 21, 570 20, 010 18, 640 17, 440 16, 370 15, 420 14, 560 13, 790 13, 080 12, 440 11, 840 11, 300 10, 790 10, 320 9, 880 9, 470 9, 090 8, 730 8, 390 8, 070 7, 760 7, 480 7, 200 6, 940 6, 690 6, 460 6, 230 6, 010 5, 810 5, 600 5, 410 5, 230 5, 050 4, 870 4, 710 25, 290 23, 200 21, 410 19, 860 18, 520 17, 330 16, 270 15, 330 14, 480 13, 710 13, 010 12, 370 11, 790 11, 240 10, 740 10, 270 9, 840 9, 430 9, 050 8, 690 8, 360 8, 040 7, 730 7, 450 7, 180 6, 920 6, 670 6, 430 6, 210 5, 990 5, 780 5, 590 5, 390 5, 210 5, 030 4, 860 4, 690 52, 990 44, 760 38, 740 34, 130 30, 480 27, 520 25, 070 23, 000 21, 240 19, 720 18, 390 17, 220 16, 180 15, 240 14, 400 13, 640 12, 950 12, 310 11, 730 11, 190 10, 690 10, 230 9, 800 9, 390 9, 010 8, 660 8, 320 8, 010 7, 710 7, 420 7, 150 6, 890 6, 650 6, 410 6, 190 5, 970 5, 760 5, 570 5, 370 5, 190 5, 010 4, 840 4, 670 52, 020 44, 080 38, 220 33, 720 30, 150 27, 250 24, 850 22, 820 21, 080 19, 580 18, 270 17, 110 16, 080 15, 150 14, 320 13, 570 12, 880 12, 250 11, 670 11, 140 10, 640 10, 180 9, 760 9, 350 8, 980 51, 100 43, 410 37, 720 33, 330 29, 840 26, 990 24, 630 22, 630 20, 920 19, 440 18, 140 17, 000 15, 980 15, 070 14, 240 13, 500 12, 820 12, 190 11, 620 11, 090 10, 600 10, 140 9, 710 9, 320 8, 940 50, 210 42, 770 37, 230 32, 940 29, 530 26, 740 24, 410 22, 450 20, 760 19, 300 18, 020 16, 890 15, 880 14, 980 14, 170 13, 430 12, 750 12, 130 11, 560 11, 040 10, 550 10, 100 9, 670 9, 280 8, 910 8, 620 8, 290 7, 970 7, 680 7, 390 7, 120 6, 870 6, 620 6, 390 6, 160 5, 950 5, 740 5, 550 5, 360 5, 170 4, 990 4, 820 4, 660 8, 590 8, 260 7, 940 7, 650 7, 370 7, 100 6, 840 6, 600 6, 370 6, 140 5, 930 5, 720 5, 530 5, 340 5, 150 4, 980 4, 810 4, 640 8, 560 8, 230 7, 910 7, 620 7, 340 7, 070 6, 820 6, 570 6, 340 6, 120 5, 910 5, 700 5, 510 5, 320 5, 140 4, 960 4, 790 4, 620 49, 350 42, 140 36, 750 32, 570 29, 220 26, 480 24, 200 22, 270 20, 610 19, 170 17, 900 16, 790 15, 790 14, 900 14, 090 13, 360 12, 690 12, 070 11, 510 10, 990 10, 500 10, 050 9, 630 9, 240 8, 870 8, 520 8, 190 7, 880 7, 590 7, 310 7, 050 6, 790 6, 550 6, 320 6, 100 5, 890 5, 680 5, 490 5, 300 5, 120 4, 940 4, 770 4, 610 52 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal"Component of Distance of Pilot Balloon—Continued 25 minutes after release of balloon; altitude of balloon, 5,100 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 4, 590 4, 580 4, 560 4, 540 4, 530 4, 510 4, 500 4, 480 4, 460 4, 450 49 4, 430 4, 420 4, 400 4, 390 4, 370 4, 360 4, 340 4, 330 4, 310 4, 290 50 4, 280 4, 260 4, 250 4, 230 4, 220 4, 200 4, 190 4, 170 4, 160 4, 140 51 4, 130 4, 120 4, 100 4, 090 4, 070 4, 060 4, 040 4, 030 4, 010 4, 000 52 3, 980 3, 970 3, 960 3, 940 3, 930 3, 910 3, 900 3, 890 3, 870 3, 860 53 3, 840 3, 830 3, 820 3, 800 3, 790 3, 770 3, 760 3, 750 3, 730 3, 720 54 . 3, 710 3, 690 3, 680 3, 660 3, 650 3, 640 3, 620 3, 610 3, 600 3, 580 55 3, 570 3, 560 3, 540 3, 530 3, 520 3, 510 3, 490 3, 480 3, 470 3, 450 56 3, 440 3, 430 3, 410 3, 400 3, 390 3, 380 3, 360 3, 350 3, 340 3, 320 57 3, 310 3, 300 3, 290 3, 270 3, 260 3, 250 3, 240 3, 220 3, 210 3, 200 58 3, 190 3, 170 3, 160 3, 150 3, 140 3, 130 3, 110 3, 100 3, 090 3, 080 59 3, 060 3, 050 3, 040 3, 030 3, 020 3, 000 2, 990 2, 980 2, 970 2, 960 60 2, 940 2, 930 2, 920 2, 910 2, 900 2, 890 2, 870 2, 860 2, 850 2, 840 61 2, 830 2, 820 2, 800 2, 790 2, 780 2, 770 2, 760 2, 750 2, 730 2, 720 62 2, 710 2, 700 2, 690 2, 680 2, 670 2, 660 2, 640 2, 630 2, 620 2, 610 63 2, 600 2, 590 2, 580 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 500 64 2, 490 2, 480 2, 470 2, 450 2, 440 2, 430 2, 420 2, 410 2, 400 2, 390 65 2, 380 2, 370 2, 360 2, 350 2, 330 2, 320 2, 310 2, 300 2, 290 2, 280 66 2, 270 2, 260 2, 250 2, 240 2, 230 2, 220 2, 210 2, 200 2, 190 2, 180 67 2, 160 2, 150 2, 140 2, 130 2, 120 2, 110 2, 100 2, 090 2, 080 2, 070 68 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 2, 000 1, 990 1, 980 1, 970 69 1, 960 1, 950 1, 940 1, 930 1, 920 1, 910 1, 900 1, 890 1, 880 1, 870 70 1, 860 1, 850 1, 840 1, 830 1, 820 1, 810 1, 800 1, 790 1, 780 1, 770 71 1, 760 1, 750 1, 740 1, 730 1, 720 1, 710 1, 700 1, 690 1, 680 1, 670 72 1, 660 1, 650 1, 640 1, 630 1, 620 1, 610 1, 600 1, 590 1, 580 1, 570 73 1, 560 1, 550 1, 540 1, 530 1, 520 1, 510 1, 500 1, 490 1, 480 1, 470 74 1, 460 1, 450 1, 440 1, 430 1, 420 1, 410 1, 400 1, 400 1, 390 1, 380 75 1, 370 1, 360 1, 350 1, 340 1, 330 1, 320 1, 310 1, 300 1, 290 1, 280 76 1, 270 1, 260 1, 250 1, 240 1, 230 1, 220 1, 210 1, 210 1, 200 1, 190 77 1, 180 1, 170 1, 160 1, 150 1, 140 1, 130 1, 120 , i, no 1, 100 1, 090 78 1, 080 1, 070 1, 070 1, 060 1, 050 1, 040 1, 030 1, 020 1, 010 1, 000 79 990 980 970 960 950 950 940 930 920 910 80 900 890 880 870 860 850 840 840 830 820 81 810 800 790 780 770 760 750 740 730 730 82 720 710 700 690 680 670 660 650 640 640 83 630 620 610 600 590 580 570 560 550 550 84 540 530 520 510 500 490 480 470 460 450 85 450 440 430 420 410 400 390 380 370 370 86 360 350 340 330 320 310 300 290 290 280 87 270 260 250 240 230 220 210 210 200 190 88 180 170 160 150 140 130 120 120 110 100 89 90l 80 70 60 50 40' 40 30 20 10 53 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 26 minutes after release of balloon; altitude of balloon, 5,300 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.3 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 60, 580 59, 360 58, 250 57, 130 56, 070 55, 070 54, 060 53, 110 52, 180 51, 290 6 50, 430 49, 590 48, 790 48, 010 47, 260 46, 520 45, 810 45, 120 44, 450 43, 800 7 43, 160 42, 550 41, 950 41, 370 40, 810 40, 260 39, 720 39, 200 38, 690 38, 190 8 37, 710 37, 240 36, 780 36, 330 35, 890 35, 460 35, 040 34, 640 34, 240 33, 850 9 33, 460 33, 090 32, 720 32, 360 32, 010 31, 670 31, 340 31, 010 30, 680 30, 370 10 30, 060 29, 750 29, 460 29, 160 28, 880 28, 600 28, 320 28, 050 27, 780 27, 520 11 27, 270 27, 010 26, 770 26, 520 26, 280 26, 050 25, 820 25, 590 25, 370 25, 150 12 24, 930 24, 720 24, 510 24, 310 24, 110 23, 910 23, 710 23, 520 23, 330 23i 140 13 22, 960 22, 780 22, 600 22, 420 22, 250 22, 080 21, 910 21, 740 21, 580 21, 420 14 21, 260 21, 100 20, 950 20, 790 20, 640 20, 490 20, 350 20, 200 20, 060 19, 920 15 19, 780 19, 640 19, 510 19, 370 19, 240 19, 110 18, 980 18, 860 18, 730 18, 610 16 18, 480 18, 360 18, 240 18, 120 18, 010 17, 890 17, 780 17, 670 17, 550 17, 440 17 17, 340 17, 230 17, 120 17, 020 16, 910 16, 810 16, 710 16, 610 16, 510 16, 410 18 16, 310 16, 220 16, 120 16, 030 15, 930 15, 840 15, 750 15, 660 15, 570 15, 480 19 15, 390 15, 310 15, 220 15, 130 15, 050 14, 970 14, 880 14, 800 14, 720 14, 640 20 14, 560 14, 480 14, 400 14, 330 14, 250 14, 180 14, 100 14, 030 13, 950 13, 880 21 13, 810 13, 740 13, 660 13, 590 13, 520 13, 450 13, 390 13, 320 13, 250 13, 180 22 13, 120 13, 050 12, 990 12, 920 12, 860 12, 800 12, 730 12, 670 12, 610 12, 550 23 12, 490 12, 430 12, 370 12, 310 12, 250 12, 190 12, 130 12, 070 12, 020 11, 960 24 11, 900 11, 850 11, 790 11, 740 11, 680 11, 630 11, 580 11, 520 11, 470 11, 420 25 11, 370 11, 310 11, 260 11, 210 11, 160 11, 110 11, 060 11, 010 10, 960 10, 910 26 10,. 870 10, 820 10, 770 10, 720 10, 680 10, 630 10, 580 10, 540 10, 490 10, 450 27 10, 400 10, 360 10, 310 10, 270 10, 220 10, 180 10, 140 10, 090 10, 050 10, 010 28 9, 970 9, 930 9, 880 9, 840 9, 800 9, 760 9, 720 9, 680 9, 640 9, 600 29 9, 560 9, 520 9, 480 9, 440 9, 410 9, 370 9, 330 9, 290 9, 250 9, 220 30 9, 180 9, 140 9, 110 9, 070 9, 030 9, 000 8, 960 8, 930 8, 890 8, 860 31 8, 820 8, 790 8, 750 8, 720 8, 680 8, 650 8, 620 8, 580 8, 550 8, 510 32 8, 480 8, 450 8, 420 8, 380 8, 350 8, 320 8, 290 8, 260 8, 220 8, 190 33 8, 160 8, 130 8, 100 8, 070 8, 040 8, 010 7, 980 7, 950 7, 920 7, 890 34 7, 860 7, 830 7, 800 7, 770 7, 740 7, 710 7, 680 7, 650 7, 630 7, 600 35 7, 570 7, 540 7, 510 7, 490 7, 460 7, 430 7, 400 7, 380 7, 350 7, 320 36 7, 290 7, 270 7, 240 7, 210 7, 190 7, 160 7, 140 7, 110 7, 080 7, 060 37 7, 030 7, 010 6, 980 6, 960 6, 930 6, 910 6, 880 6, 860 6, 830 6, 810 38 6, 780 6, 760 6, 740 6, 710 6, 690 6, 660 6, 640 6, 620 6, 590 6, 570 39 6, 540 6, 520 6, 500 6, 480 6, 450 6, 430 6, 410 6, 380 6, 360 6, 340 40 6, 320 6, 290 6, 270 6, 250 6, 230 6, 210 6, 180 6, 160 6, 140 6, 120 41 6, 100 6, 080 6, 050 6, 030 6, 010 5, 990 5, 970 5, 950 5, 930 5, 910 42 5, 890 5, 870 5, 840 5, 820 5, 800 5, 780 5, 760 5, 740 5, 720 5, 700 43 5, 680 5, 660 5, 640 5, 620 5, 600 5, 590 5, 570 5, 550 5, 530 5, 510 44 5, 490 5, 470 5, 450 5, 430 5, 410 5, 390 5, 370 5, 360 5, 340 5, 320 45 5, 300 5, 280 5, 260 5, 240 5, 230 5, 210 5, 190 5, 170 5, 150 5, 140 46 5, 120 5, 100 5, 080 5, 060 5, 050 5, 030 5, 010 4, 990 4, 980 4, 960 47 4, 9401 4, 930 4, 910 4, 890 4, 870 4, 860 4, 840 4, 820 4, 810 4, 790 54 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 26 minutes after release of balloon; altitude of balloon, 5,300 yards—Continued Elevation angle of balloon in degrees and tenths of a degree 0.0 0.1 0.3 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Degrees. Horizontal component of distance of balloon in yards from observing point 48 4, 770 4, 760 4, 740 4, 720 4, 710 4, 690 4, 670 4, 660 4, 640 4, 620 49 4, 610 4, 590 4, 570 4, 560 4, 540 4, 530 4, 510 4, 490 4, 480 4, 460 50 4, 450 4, 430 4, 420 4, 400 4, 380 4, 370 4, 350 4, 340 4, 320 4, 310 51 4, 290 4, 280 4, 260 4, 250 4, 230 4, 220 4, 200 4, 190 4, 170 4, 160 52 4, 140 4, 130 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 4, 020 4, 010 53 3, 990 3, 980 3, 960 3, 950 3, 940 3, 920 3, 910 3, 890 3, 880 3, 860 54 3, 850 3, 840 3, 820 3, 810 3, 790 3, 780 3, 770 3, 750 3, 740 3, 720 55 3, 710 3, 700 3, 680 3, 670 3, 660 3, 640 3, 630 3, 620 3, 600 3, 590 56 3, 570 3, 560 3, 550 3, 530 3, 520 3, 510 3, 490 3, 480 3, 470 3, 460 57 3, 440 3, 430 3, 420 3, 400 3, 390 3, 380 3, 360 3, 350 3, 340 3, 320 58 3, 310 3, 300 3, 290 3, 270 3, 260 3, 250 3, 240 3, 220 3, 210 3, 200 59 3, 180 3, 170 3, 160 3, 150 3, 130 3, 120 3, 110 3, 100 3, 080 3, 070 60 3, 060 3, 050 3, 040 3, 020 3, 010 3, 000 2, 990 2, 970 2, 960 2, 950 61 2, 940 2, 930 2, 910 2, 900 2, 890 2, 880 2, 870 2, 850 2, 840 2, 830 62 2, 820 2, 810 2, 790 2, 780 2, 770 2, 760 2, 750 2, 740 2, 720 2, 710 63 2, 700 2, 690 2, 680 2, 670 2, 650 2, 640 2, 630 2, 620 2, 610 2, 600 64 2, 580 2, 570 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 490 2, 480 65 2, 470 2, 460 2, 450 2, 440 2, 430 2, 420 2, 400 2, 390 2, 380 2, 370 66 2, 360 2, 350 2, 340 2, 330 2, 320 2, 300 2, 290 2, 280 2, 270 2, 260 67 2, 250 2, 240 2, 230 2, 220 3, 210 2, 200 2, 180 2, 170 2, 160 2, 150 68 2, 140 2, 130 2, 120 2, 110 2, 100 2, 090 2, 080 2, 070 2, 060 2, 050 69 2, 030 2, 020 2, 010 2, 000 1, 990 1, 980 1, 970 1, 960 1, 950 1, 940 70 1, 930 1, 920 1, 910 1, 900 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 71 1, 820 1, 810 1, 800 1, 790 1, 780 1, 770 1, 760 1, 750 1, 740 1, 730 72 1, 720 1, 710 1, 700 1, 690 1, 680 1, 670 1, 660 1, 650 1, 640 1, 630 73 1, 620 1, 610 1, 600 1, 590 1, 580 1, 570 1, 560 1, 550 1, 540 1, 530 74 1, 520 1, 510 1, 500 1, 490 1, 480 1, 470 1, 460 1, 450 1, 440 1, 430 75 1, 420 1, 410 1, 400 1, 390 1, 380 1, 370 1, 360 1, 350 1, 340 1, 330 76 1, 320 1, 310 1, 300 1, 290 1, 280 1, 270 1, 260 1, 250 1, 240 1, 230 77 1, 220 1, 210 1, 200 1, 190 1, 180 1, 180 1, 170 1, 160 1, 150 1, 140 78 1, 130 1, 120 1, 110 1, 100 1, 090 1, 080 1, 070 1, 060 1, 050 1, 040 79 1, 030 1, 020 1, 010 1, 000 990 980 970 960 950 940 80 930 920 920 910 900 890 880 870 860 850 81 840 830 820 810 800 790 780 770 760 750 82 740 740 730 720 710 700 690 680 670 660 83 650 640 630 620 610 600 590 590 580 570 84 560 550 540 530 520 510 500 490 480 470 85 460 450 450 440 430 420 410 400 390 380 86 370 360 350 340 330 320 ■310 310 300 290 87 280 270 260 250 240 230 220 210 200 190 88 180 180 170 160 150 140 130 120 110 100 89 90 sol 70 60 60 50 40 30 20 10 55 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 27 minutes after release of balloon; altihide of balloon, 5,500 yards Elevation angle of balloon in degrees and tenths of a degree Degrees. _ 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 -- 62, 870 61, 600 60, 440 59, 290 58 190 57 140 56 100 55 110 54 150 52 290 6 52, 330 51, 460 50, 630 49, 820 49, 030 48 270 47 530 46 820 46 120 45 450 7 44', 790 44, 160 43, 540 42, 930 42 350 41 780 41’ 220 40’ 680 40 150 30 040 8 _ _. 39, 130 38, 650 38, 170 37, 700 37, 250 36 800 36 370 35 940 35 530 35 190 9 __ _ 34, 730 34, 340 33, 960 33, 590 33, 220 32 870 32* 520 32’ 180 31 840 31 510 10 31, 190 30, 880 30, 570 30, 260 29, 970 29, 680 29, 390 29, 110 28, 830 28, 560 11 28, 300 28, 030 27, 780 27. 520 27, 280 27, 030 26, 790 26, 560 26, 330 26, 100 12 25, 880 25, 660 25, 440 25, 230 25, 020 24. 810 24, 610 24, 410 24, 210 24, 010 13 23, 820 23. 630 23, 450 23, 270 23, 090 22, 910 22, 730 22, 560 22, 390 22, 220 14 22, 060 21, 900 21, 740 21, 580 21, 420 21, 270 21, 120 20, 960 20, 820 20. 670 15 20, 530 20, 380 20, 240 20, 100 19, 970 19, 830 19, 700 19, 570 19, 440 19, 310 16 19, 180 19, 060 18, 930 18, 810 18, 690 18, 570 18, 450 18, 330 18, 220 18, 100 17 17, 990 17, 880 17. 770 17, 660 17, 550 17. 440 17, 340 17, 230 17, 130 17, 030 18 16, 930 16, 830 16, 730 16, 630 16, 530 16, 440 16, 340 16, 250 16, 160 16, 060 19 15, 970 15, 880 15, 790 15, 710 15, 620 15, 530 15, 450 15, 360 15, 280 15, 190 20 15, 110 15, 030 14, 950 14, 870 14, 790 14, 710 14, 630 14, 560 14, 480 14, 400 21 14, 330 14, 250 14, 180 14, 110 14, 030 13, 960 13, 890 13, 820 13, 750 13, 680 22 13, 610 13, 540 13, 480 13, 410 13, 340 13, 280 13, 210 13, 150 13, 080 13, 020 23 12, 960 12, 890 12, 830 12, 770 12, 710 12. 650 12, 590 12, 530 12. 470 12, 410 24 12, 350 12, 300 12, 240 12, 180 12, 120 12, 070 12, 010 11, 960 11, 900 11, 850 25 11, 790 11, 740 11, 690 11, 640 11, 580 11, 530 11, 480 11, 430 11, 380 11. 330 26 11, 280 11. 230 11, 180 11, 130 11, 080 11, 030 10, 980 10, 940 10, 890 10, 840 27 10, 790 10, 750 10, 700 10, 660 10, 610 10, 570 10, 520 10, 480 10, 430 10, 390 28 10, 340 10, 300 10, 260 10. 210 10, 170 10, 130 10, 090 10, 050 10, 000 9, 960 29 9, 920 9, 880 9, 840 9, 800 9, 760 9, 720 9, 680 9, 640 9, 600 9, 570 30 9, 530 9, 490 9, 450 9, 410 9, 370 9, 340 9, 300 9, 260 9, 230 9, 190 31 9, 150 9, 120 9, 080 9, 050 9, 010 8, 980 8, 940 8, 910 8, 870 8, 840 32 8, 800 8, 770 8, 730 8, 700 8, 670 8, 630 8, 600 8, 570 8, 530 8, 500 33 8, 470 8, 440 8, 410 8, 370 8, 340 8, 310 8, 280 8, 250 8. 220 8, 190 34 8, 150 8, 120 8, 090 8, 060 8, 030 8, 000 7, 970 7, 940 7, 910 7, 880 35 7, 850 7, 830 7, 800 7, 770 7, 740 7, 710 7, 680 7, 650 7, 630 7, 600 36 7. 570 7, 540 7, 510 7, 490 7, 460 7, 430 7, 410 7, 380 7, 350 7, 330 37 7, 300 7, 270 7, 250 7, 220 7, 190 7, 170 7, 140 7, 120 7, 090 7, 070 38 7, 040 7, 010 6, 990 6, 960 6, 940 6, 910 6, 890 6, 870 6, 840 6, 820 39 6, 790 6, 770 6, 740 6, 720 6, 700 6, 670 6, 650 6, 620 6, 600 6, 580 40 6, 550 6, 530 6, 510 6, 490 6, 460 6, 440 6, 420 6, 390 6, 370 6, 350 41 1 6, 330 6, 300 6, 280 6, 260 6, 240 6, 220 6, 190 6, 170 6, 150 6, 130 42 6, 110 6, 090 6, 070 6, 040 6, 020 6, 000 5, 980 5, 960 5, 940 5, 920 43 5, 900 5, 880 5, 860 5, 840 5, 820 5, 800 5, 780 5, 760 5, 740 5, 720 44 5, 700 5, 680 5, 660 5, 640 5, 620 5, 600 5, 580 5, 560 5, 540 5, 520 45 5, 500 5, 480 5, 460 5, 440 5, 420 5, 400 5, 390 5, 370 5, 350 5, 330 46 5, 310 5, 290 5, 270 5, 260 5, 240 5, 220 5, 200 5, 180 5, 170 5, 150 47 5, 130 5, 110' 5, 0901 5, 0801 5. 060 5, 040 5, 020 5, 000 4, 990 4, 970 56 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal, Component of Distance of Pilot Balloon—Continued 27 minutes after release of balloon; altitude of balloon, 5,500 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 49 4, 950 4, 780 4, 930 4, 760 4, 920 4, 750 4, 900 4, 730 4, 880 4, 710 4, 870 4, 700 4, 850 4, 680 4, 830 4, 660 4, 810 4, 650 4, 800 4, 630 50 4, 620 4, 600 4, 580 4, 570 4, 550 4, 530 4, 520 4, 500 4, 490 4, 470 51 4, 450 4, 440 4, 420 4, 410 4, 390 4, 370 4, 360 4, 340 4, 330 4, 310 52 4, 300 4, 280 4, 270 4, 250 4, 240 4, 220 4, 210 4, 190 4, 170 4, 160 53 4, 140 4, 130 4, 110 4, 100 4, 080 4, 070 4, 060 4, 040 4, 030 4, 010 54 4, 000 3, 980 3, 970 3, 950 3, 940 3, 920 3, 910 3, 890 3, 880 3, 870 55 3, 850 3, 840 3, 820 3, 810 3, 790 3, 780 3, 770 3, 750 3, 740 3, 720 56 3, 710 3, 700 3, 680 3, 670 3, 650 3, 640 3, 630 3, 610 3, 600 3, 590 57 3, 570 3, 560 3, 540 3, 530 3, 520 3, 500 3, 490 3, 480 3, 460 3, 450 58 3, 440 3, 420 3, 410 3, 400 3, 380 3, 370 3, 360 3, 340 3, 330 3, 320 59 3, 300 3, 290 3, 280 3, 270 3, 250 3, 240 3. 230 3, 210 3, 200 3, 190 60 3, 180 3, 160 3, 150 3, 140 3, 120 3, 110 3, 100 3, 090 3, 070 3, 060 61 3, 050 3, 040 3, 020 3, 010 3, 000 2, 990 2, 970 2, 960 2, 950 2, 940 62 2, 920 2, 910 2, 900 2, 890 2, 880 2, 860 2, 850 2, 840 2, 830 2, 810 63 2, 800 2, 790 2, 780 2, 770 2, 750 2, 740 2, 730 2, 720 2, 710 2, 690 64 2, 680 2, 670 2, 660 2, 650 2, 640 2, 620 2, 610 2, 600 2, 590 2, 580 65 2, 560 2, 550 2, 540 2, 530 2, 520 2, 510 2, 490 2, 480 2, 470 2, 460 66 2, 450 2, 440 2, 430 2, 410 2, 400 2, 390 2, 380 2, 370 2, 360 2, 350 67 2, 330 2, 320 2, 310 2, 300 2, 290 2, 280 2, 270 2, 260 2, 240 2, 230 68 2, 220 2, 210 2, 200 2, 190 2, 180 2, 170 2, 160 2, 140 2, 130 2, 120 69 2, 110 2, 100 2, 090 2, 080 2, 070 2, 060 2, 050 2, 030 2, 020 2, 010 70 2, 000 1, 990 1, 980 1, 970 1, 960 1, 950 1, 940 1, 930 1, 920 1, 900 71 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 830 1, 820 1, 810 1, 800 72 1, 790 1, 780 1, 770 1, 760 1, 740 1, 730 1, 720 1, 710 1, 700 1, 690 73 1, 680 1, 670 1, 660 1, 650 1, 640 1, 630 1, 620 1, 610 1, 600 1, 590 74 1, 580 1, 570 1, 560 1, 550 1, 540 1, 530 1, 510 1, 500 1, 490 1, 480 75 1, 470 1, 460 1, 450 1, 440 1, 430 1, 420 1, 410 1, 400 1, 390 1, 380 76 1, 370 1, 360 1, 350 1, 340 1, 330 1, 320 1, 310 1, 300 1, 290 1, 280 77 1, 270 1, 260 1, 250 1, 240 1, 230 1, 220 1, 210 1, 200 1, 190 1, 180 78 1, 170 1, 160 1, 150 1, 140 1, 130 1, 120 1, 110 1, 100 1, 090 1, 080 79 1, 070 1, 060 1, 050 1, 040 1, 030 1, 020 1, 010 1, 000 990 980 80 970 960 950 940 930 920 910 900 890 880 81 870 860 850 840 830 820 810 800 790 780 82 770 760 750 740 730 720 710 700 690 690 83 680 670 660 650 640 630 620 610 600 590 84 ’ 580 570 560 550 540 530 520 510 500 490 85 480 470 460 450 440 430 420 410 400 390 86 380 380 370 360 350 340 330 320 310 300 87 290 280. 270 260 250 240 230 220 210 200 88 190 180 170 160 150 140 130 120 110 110 89 100 90 80 70 60 50 40 30 20 10 57 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 28 minutes after release of balloon; altitude of balloon, 5,700 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l O.2 0.3 0.4 O.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 65, 150 63, 840 62, 640 61, 450 60, 310 59, 220 58, 140 57, 110 56. 120 55. 160 6 54, 230 53, 340 52, 470 51, 630 50, 820 50, 030 49, 260 48, 520 47, 800 47, 100 7 46, 420 45, 760 45, 120 44, 500 43, 890 43, 300 42, 720 42, 160 4i; 610 41, 080 8 40, 560 40, 050 39, 560 39, 070 38, 600 38, 140 37, 690 37, 250 36, 820 36, 400 9 35, 990 35, 590 35, 190 34, 810 34, 430 34, 060 33, 700 33, 350 33i 000 32, 660 10 32, 330 32, 000 31, 680 31, 360 31, 060 30, 750 30, 460 30, 170 29, 880 29, 600 11 29, 320 29, 050 28, 790 28, 530 28, 270 28, 020 27, 770 27, 520 27; 280 27, 050 12 26, 820 26, 590 26, 360 26, 140 25, 930 25, 710 25, 500 25, 290 25; 090 24, 890 13 24, 690 24, 490 24, 300 24,110 23, 930 23, 740 23, 560 23, 380 23, 210 23, 030 14 22, 860 22, 690 22, 530 22, 360 22, 200 22, 040 21, 880 21, 730 2i; 570 21, 420 15 21, 270 21, 130 20, 980 20, 840 20, 690 20, 550 20, 420 20, 280 20, 140 19, 010 16 19, 880 19, 750 19, 620 19, 490 19, 370 19, 240 19, 120 19, 000 18, 880 18, 760 17 18, 640 18, 530 18, 410 18, 300 18, 190 18, 080 17, 970 17, 860 17, 750 17; 650 18 17, 540 17, 440 17, 340 17, 240 17, 130 17, 040 16, 940 16, 840 16, 740 16, 650 19 16, 550 16, 460 16, 370 16, 280 16, 190 16, 100 16, 010 15, 920 15, 830 15; 750 20 15, 660 15, 580 15, 490 15, 410 15, 330 15, 250 15, 160 15, 080 15, 010 14, 930 21 14, 850 14, 770 14, 700 14, 620 14, 540 14, 470 14, 400 14, 320 14; 250 14, 180 22 14, 110 14, 040 13, 970 13, 900 13, 830 13, 760 13, 690 13, 630 13; 560 13; 490 23 13, 430 13, 360 13, 300 13, 240 13, 170 13, 110 13, 050 12, 990 12; 920 12; 860 24 12, 800 12, 740 12, 680 12, 620 12, 570 12, 510 12, 450 12, 390 12, 340 12, 280 25 12, 220 12, 170 12, 110 12, 060 12, 000 11, 950 11, 900 11, 840 11, 790 11, 740 26 11, 690 11, 640 11, 580 11, 530 11, 480 11, 430 11, 380 11, 330 Hi 280 11, 240 27 11, 190 11, 140 11, 090 11, 040 11, 000 10, 950 10, 900 10, 860 10; 810 10, 770 28 10, 720 10, 670 10, 630 10, 590 10, 540 10, 500 10, 450 10, 410 10, 370 10, 330 29 10, 280 10, 240 10, 200 10, 160 10, 120 10, 070 10, 030 9, 990 9, 950 9, 910 30 9, 870 9, 830 9, 790 9, 750 9, 720 9, 680 9, 640 9, 600 9, 560 9, 520 31 9, 490 9, 450 9, 410 9, 380 9, 340 9, 300 9, 270 9, 230 9, 190 9, 160 32 9, 120 9, 090 9, 050 9, 020 8, 980 8, 950 8, 910 8, 880 8, 840 8, 810 33 8, 780 8, 740 8, 710 8, 680 8, 640 8, 610 8, 580 8, 550 8, 510 8, 480 34 8, 450 8, 420 8, 390 8, 360 8, 320 8, 290 8, 260 8, 230 8, 200 8, 170 35 8, 140 8, 110 8, 080 8, 050 8, 020 7, 990 7, 960 7, 930 7, 900 7, 870 36 7, 850 7, 820 7, 790 7, 760 7, 730 7, 700 7, 680 7, 650 7, 620 7, 590 37 7, 560 7, 540 7, 510 7, 480 7, 460 7, 430 7, 400 7, 370 7, 350 7, 320 38 7, 300 7, 270 7, 240 7, 220 7, 190 7, 170 7, 140 7, 110 7, 090 7, 060 39 7, 040 7, 010 6, 990 6, 960 6, 940 6, 910 6, 890 6, 870 6, 840 6, 820 40 6, 790 6, 770 6, 740 6, 720 6, 700 6, 670 6, 650 6, 630 6, 600 6, 580 41 6, 560 6, 530 6, 510 6, 490 6, 470 6, 440 6, 420 6, 400 6, 370 6, 350 42 6, 330 6, 310 6, 290 6, 260 6, 240 6, 220 6, 200 6, 180 6, 160 6, 130 43 6, 110 6, 090 6, 070 6, 050 6, 030 6, 010 5, 990 5, 960 5, 940 5, 920 44 5, 900 5, 880 5, 860 5, 840 5, 820 5, 800 5, 780 5, 760 5, 740 5, 720 45 5, 700 5, 680 5, 660 5, 640 5, 620 5, 600 5, 580 5, 560 5, 540 5, 520 46 5, 500 5, 490 5, 470 5, 450 5, 430 5, 410 5, 390 5, 370 5, 350 5, 330 47 5, 320 5, 300 5, 280 5, 260 5, 240 5, 220 5, 200 5, 190 5, 170 5, 150 58 . TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 28 minutes after release of balloon; altitude of balloon 5,700 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 5, 130 5, 110 5, 100 5, 080 5, 060 5, 040 5, 030 5, 010 4, 990 4, 970 49 4, 960 4, 940 4, 920 4, 900 4, 890 4, 870 4, 850 4, 830 4, 820 4, 800 50 4, 780 4, 770 4, 750 4, 730 4, 720 4, 700 4, 680 4, 670 4, 650 4, 630 51 4, 620 4, 600 4, 580 4, 570 4, 550 4, 530 4, 520 4, 500 4, 490 4, 470 52 4, 450 4, 440 4, 420 4, 410 4, 390 4, 370 4, 360 4, 340 4, 330 4, 310 53 4, 300 4, 280 4, 260 4, 250 4, 230 4, 220 4, 200 4, 190 4, 170 4, 160 54 4, 140 4, 130 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 4, 020 4, 010 55 3, 990 3, 980 3, 960 3, 950 3, 930 3, 920 3, 900 3, 890 3, 870 3, 860 56 3, 840 3, 830 3, 820 3, 800 3, 790 3, 770 3, 760 3, 740 3, 730 3, 720 57 3, 700 3, 690 3, 670 3, 660 3, 650 3, 630 3, 620 3, 600 3, 590 3, 580 58 3, 560 3, 550 3, 530 3, 520 3, 510 3, 490 3, 480 3, 470 3, 450 3, 440 59 3, 430 3, 410 3, 400 3, 380 3, 370 3, 360 3, 340 3, 330 3, 320 3, 300 60 3, 290 3, 280 3, 260 3, 250 3, 240 3, 230 3, 210 3, 200 3, 190 3, 170 61 3, 160 3, 150 3, 130 3, 120 3, 110 3, 100 3, 080 3, 070 3, 060 3, 040 62 3, 030 3, 020 3, 010 2, 990 2, 980 2, 970 2, 950 2, 940 2, 930 2, 920 63 2, 900 2, 890 2, 880 2, 870 2, 850 2, 840 2, 830 2, 820 2, 800 2, 790 64 2, 780 2, 770 2, 760 2, 740 2, 730 2, 720 2, 710 2, 690 2, 680 2, 670 65 2, 660 2, 650 2, 630 2, 620 2, 610 2, 600 2, 590 2, 570 2, 560 2, 550 66 2, 540 2, 530 2, 510 2, 500 2, 490 2, 480 2, 470 2, 450 2, 440 2, 430 67 2, 420 2, 410 2, 400 2, 380 2, 370 2, 360 2, 350 2, 340 2, 330 2, 310 68 2, 300 2, 290 2, 280 2, 270 2, 260 2, 250 2, 230 2, 220 2, 210 2, 200 69 2, 190 2, 180 2, 170 2, 150 2, 140 2, 130 2, 120 2, 110 2, 100 2, 090 70 2, 070 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 2, 000 1, 980 1, 970 71 1, 960 1, 950 1, 940 1, 930 1, 920 1, 910 1, 900 1, 880 1, 870 1, 860 72 1, 850 1, 840 1, 830 1, 820 1, 810 1, 800 1, 790 1, 780 1, 760 1, 750 73 1, 740 1, 730 1, 720 1, 710 1, 700 1, 690 1, 680 1, 670 1, 660 1, 650 74 1, 630 1, 620 1, 610 1, 600 1, 590 1, 580 1, 570 1, 560 1, 550 1, 540 75 1, 530 1, 520 1, 510 1, 500 1, 480 1, 470 1, 460 1, 450 1, 440 1, 430 76 1, 420 1, 410 1, 400 1, 390 1, 380 1, 370 1, 360 1, 350 1, 340 1, 330 77 1, 320 1, 310 1, 300 1, 280 1, 270 1, 260 1, 250 1, 240 1, 230 i; 220 78 1, 210 1, 200 1, 190 1, 180 1, 170 1, 160 1, 150 1, 140 1, 130 L 120 79 1, 110 1, 100 1, 090 1, 080 1, 070 1, 060 1, 050 1, 040 1, 030 1, 020 80 1, 000 990 980 970 960 950 940 930 920 910 81 900 890 880 870 860 850 840 830 820 810 82 800 790 780 770 760 750 740 730 720 710 83 700 690 680 670 660 650 640 630 620 610 84 600 590 580 570 560 550 540 530 520 510 85 500 490 480 470 460 450 440 430 420 410 86 400 390 380 370 360 350 340 330 320 310 87 300 290 280 270 260 250 240 230 220 210 88 200 190 180 170 160 . 150 140 130 120 110 89 100 90 80 70 60 50 40 30 20 10 59 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 29 minutes after release of balloon; altitude of balloon, 5,900 yards Degrees . Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.3 0.3 0.4 0.5 0.6 O.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 67, 440 66, 080 64, 840 63, 600 62, 420 61, 300 60, 180 59, 120 58, 090 57, 090 6 56, 130 55, 210 54, 310 53, 440 52, 600 51, 780 50, 990 50, 220 49, 480 48, 760 7 48, 050 47, 370 46, 700 46, 060 45, 430 44, 820 44, 220 43, 640 43, 070 42, 520 8 41, 980 41, 460 40, 940 40, 440 39, 950 39, 480 39, 010 38, 560 38, 110 37, 680 9 37, 250 36, 830 36, 430 36, 030 35, 640 35, 260 34, 880 34, 520 34, 160 33, 810 10 33, 460 33, 120 32, 790 32, 470 32, 150 31, 830 31, 530 31, 230 30, 930 30, 640 11 30, 350 30, 070 29, 800 29, 530 29, 260 29, 000 28, 740 28, 490 28, 240 28, 000 12 27, 760 27, 520 27, 290 27, 060 26, 830 26, 610 26, 390 26, 180 25, 970 25, 760 13 25, 560 25, 350 25, 150 24, 960 24, 770 24, 580 24, 390 24, 200 24, 020 23, 840 14 23, 660 23, 490 23, 320 23, 150 22, 980 22, 810 22, 650 22, 490 22, 330 22, 170 15 22, 020 21, 870 21, 720 21, 570 21, 420 21, 270 21, 130 20, 990 20, 850 20, 710 16 20, 580 20, 440 20, 310 20, 180 20, 050 19, 920 19, 790 19, 670 19, 540 19, 420 17 19, 300 19, 180 19, 060 18, 940 18, 830 18, 710 18, 600 18, 490 18, 380 18, 270 18 18, 160 18, 050 17, 940 17, 840 17, 740 17, 630 17, 530 17, 430 17, 330 17, 230 19 17, 130 17, 040 16, 940 16, 850 16, 750 16, 660 16, 570 16, 480 16, 390 16, 300 20 16, 210 16, 120 16, 040 15, 950 15, 860 15, 780 15, 700 15, 610 15, 530 15, 450 21 15, 370 15, 290 15, 210 15, 130 15, 060 14, 980 14, 900 14, 830 14, 750 14, 680 22 14, 600 14, 530 14, 460 14, 390 14, 310 14, 240 14, 170 14, 100 14, 040 13, 970 23 13, 900 13, 830 13, 770 13, 700 13, 630 13, 570 13, 500 13, 440 13, 380 13, 310 24 13, 250 13, 190 13, 130 13, 070 13, 010 12, 950 12, 890 12, 830 12, 770 12, 710 25 12, 650 12, 600 12, 540 12, 480 12, 430 12, 370 12, 310 12, 260 12, 200 12, 150 26 12, 100 12, 040 11, 990 11, 940 11, 890 11, 830 11, 780 11, 730 11, 680 11, 630 27 11, 580 11, 530 11, 480 11, 430 11, 380 11, 330 11, 290 11, 240 11, 190 11, 140 28 11, 100 11, 050 11, 000 10, 960 10, 910 10, 870 10, 820 10, 780 10, 730 10, 690 29 10, 640 10, 600 10, 560 10, 510 10, 470 10, 430 10, 390 10, 340 10, 300 10, 260 30 10, 220 10, 180 10, 140 10, 100 10, 060 10, 020 9, 980 9, 940 9, 900 9, 860 31 9, 820 9, 780 9, 740 9, 700 9, 670 9, 630 9, 590 9, 550 9, 520 9, 480 32 9, 440 9, 410 9, 370 9, 330 9, 300 9, 260 9, 230 9, 190 9, 160 9, 120 33 9, 090 9, 050 9, 020 8, 980 8, 950 8, 910 8, 880 8, 850 8, 810 8, 780 34 8, 750 8, 710 8, 680 8, 650 8, 620 8, 580 8, 550 8, 520 8, 490 8, 460 35 8, 430 8, 400 8, 360 8, 330 8, 300 8, 270 8, 240 8, 210 8, 180 8, 150 36 8, 120 8, 090 8, 060 8, 030 8, 000 7, 970 7, 940 7, 920 7, 890 7, 860 37 7, 830 7, 800 7, 770 7, 740 7, 720 7, 690 7, 660 7, 630 7, 610 7, 580 38 7, 550 7, 520 7, 500 7, 470 7, 440 7, 420 7, 390 7, 360 7, 340 7, 310 39 7, 290 7, 260 7, 230 7, 210 7, 180 7, 160 7, 130 7, 110 7, 080 7, 060 40 7, 030 7, 010 6, 980 6, 960 6, 930 6, 910 6, 880 6, 860 6, 840 6, 810 41 6, 790 6, 760 6, 740 6, 720 6, 690 6, 670 6, 650 6, 620 6, 600 6, 580 42 6, 550 6, 530 6, 510 6, 480 6, 460 6, 440 6, 420 6, 390 6, 370 6, 350 43 6, 330 6, 300 6, 280 6, 260 6, 240 6, 220 6, 200 6, 170 6, 150 6, 130 44 6, 110 6, 090 6, 070 6, 050 6, 030 6, 000 5, 980 5, 960 5, 940 5, 920 45 5, 900 5, 880 5, 860 5, 840 5, 820 5, 800 5, 780 5, 760 5, 740 5, 720 46 5, 700 5, 680 5, 660 5, 640 5, 620 5, 600 5, 580 5, 560 5, 540 5, 520 47 5, 500 5, 480 5, 460 5, 440 5, 430 5, 410 5, 390 5, 370 5, 350 5, 330 60 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 29 minutes after release of balloon; altitude of balloon, 5,900 yards—Continued Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 5, 310 5, 290 5, 280 5, 260 5, 240 5, 220 5, 200 5, 180 5, 160 5, 150 49 5, 130 5, 110 5, 090 5, 070 5, 060 5, 040 5, 020 5, 000 4, 990 4, 970 50 4, 950 4, 930 4, 920 4, 900 4, 880 4, 860 4, 850 4, 830 4, 810 4, 790 51 4, 780 4, 760 4, 740 4, 730 4, 710 4, 690 4, 680 4, 660 4, 640 4, 630 52 4, 610 4, 590 4, 580 4, 560 4, 540 4, 530 4, 510 4, 490 4, 480 4, 460 53 4, 450 4, 430 4, 410 4, 400 4, 380 4, 370 4, 350 4, 330 4, 320 4, 300 54 4, 290 4, 270 4, 260 4, 240 4, 220 4, 210 4, 190 4, 180 4, 160 4, 150 55 4, 130 4, 120 4, 100 4, 090 4, 070 4, 060 4, 040 4, 020 4, 010 3, 990 56 3, 980 3, 960 3, 950 3, 930 3, 920 3, 910 3, 890 3, 880 3, 860 3, 850 57 3, 830 3, 820 3, 800 3, 790 3, 770 3, 760 3, 740 3, 730 3, 720 3, 700 58 3, 690 3, 670 3, 660 3, 640 3, 630 3, 620 3, 600 3, 590 3, 570 3, 560 59 3, 550 3, 530 3, 520 3, 500 3, 490 3, 480 3, 470 3, 450 3, 430 3, 420 60 3, 410 3, 390 3, 380 3, 370 3, 350 3, 340 3, 320 3, 310 3, 300 3, 280 61 3, 270 3, 260 3, 240 3, 230 3, 220 3, 200 3, 190 3, 180 3, 160 3, 150 62 3, 140 3, 120 3, 110 3, 100 3, 080 3, 070 3, 060 3, 040 3, 030 3, 020 63 3, 010 2, 990 2, 980 2, 970 2, 950 2, 940 2, 930 2, 920 2, 900 2, 890 64 2, 880 2, 870 2, 850 2, 840 2, 830 2, 810 2, 800 2, 790 2, 780 2, 760 65 2, 750 2, 740 2, 730 2, 710 2, 700 2, 690 2, 680 2, 660 2, 650 2, 640 66 2, 630 2, 610 2, 600 2, 590 2, 580 2, 570 2, 550 2, 540 2, 530 2, 520 67 2, 500 2, 490 2, 480 2, 470 2, 460 2, 440 2, 430 2, 420 2, 410 2, 400 68 2, 380 2, 370 2, 360 2, 350 2, 340 2, 320 2, 310 2, 300 2, 290 2, 280 69 2, 270 2, 250 2, 240 2, 230 2, 220 2, 210 2, 190 2, 180 2, 170 2, 160 70 2, 150 2, 140 2, 120 2, 110 2, 100 2, 090 2, 080 2, 070 2, 050 2, 040 71 2, 030 2, 020 2, 010 2, 000 1, 990 1, 970 1, 960 1, 950 1, 940 1, 930 72 1, 920 1, 910 1, 890 1, 880 1, 870 1, 860 1, 850 1, 840 1, 830 1, 810 73 1, 800 1, 790 1, 780 1, 770 1, 760 1, 750 1, 740 1, 730 1, 710 1, 700 74 1, 690 1, 680 1, 670 1, 660 1, 650 1, 640 1, 620 1, 610 1, 600 1, 590 75 1, 580 1, 570 1, 560 1, 550 1, 540 1, 530 1, 520 1, 500 1, 490 1, 480 76 1, 470 1, 460 1, 450 1, 440 1, 430 1, 420 1, 410 1, 390 1, 380 1, 370 77 1, 360 1, 350 1, 340 1, 330 1, 320 1, 310 1, 300 1, 290 1, 280 1, 260 78 1, 250 1, 240 1, 230 1, 220 1, 210 1, 200 1, 190 1, 180 1, 170 1, 160 79 1, 150 1, 140 1, 130 1, 120 1, 100 1, 090 1, 080 1, 070 1, 060 1, 050 80 1, 040 1, 030 1, 020 1, 010 1, 000 990 980 970 960 950 81 930 920 910 900 890 880 870 860 850 840 82 830 820 810 800 790 780 770 760 750 740 83 720 710 700 690 680 670 660 650 640 630 84 620 610 600 590 580 570 560 550 540 530 85 520 510 500 480 470 460 450 440 430 420 86 410 400 390 380 370 360 350 340 330 320 87 310 300 290 280 270 260 250 240 230 220 88 210 200 190 180 160 150 140 130 120 110 89 100 90 80 70 60 50 40 30 20 10 61 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Horizontal Component of Distance of Pilot Balloon—Continued 30 minutes after release of balloon; altitude of ballon, 6,100 yards Elevation angle of balloon in degrees and tenths of a degree Degrees.. 0.0 O.l 0.3 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 5 69, 720 68, 320 67, 040 65, 760 64, 540 63, 380 62, 220 61, 120 60, 050 59, 030 6 58, 040 57, 080 56, 150 55, 250 54, 380 53, 540 52, 720 51, 930 51, 160 50, 410 7 _ 49, 680 48, 970 48, 290 47, 620 46, 970 46, 330 45, 720 45, 120 44, 530 43; 960 8 43, 400 42, 860 42, 330 41, 810 41, 310 40, 820 40, 330 39, 860 39, 400 38; 950 9 38, 510 38, 080 37, 660 37, 250 36, 850 36, 450 36, 070 35, 690 35, 320 3< 950 10 34, 590 34, 250 33, 900 33, 570 33, 240 32, 910 32, 600 32, 280 31, 980 31, 680 11 31, 380 31, 090 30, 810 30, 530 30, 250 29, 980 29, 720 29, 460 29, 200 28, 950 12 28, 700 28, 450 28, 210 27, 980 27, 740 27, 520 27, 290 27, 070 26, 850 26, 630 13 26, 420 26, 210 26, 010 25, 800 25, 610 25, 410 25, 210 25, 020 24, 830 24; 650 14 24, 470 24, 290 24, 110 23, 930 23, 760 23, 590 23, 420 23, 250 23, 090 22; 930 15 22, 770 22, 610 22, 450 22, 300 22, 150 22, 000 21, 850 21, 700 21, 560 21, 410 16 21, 270 21, 130 21, 000 20, 860 20, 730 20, 590 20, 460 20, 330 20, 200 20; 080 17 19, 950 19, 830 19, 710 19, 580 19, 470 19, 350 19, 230 19, 110 19, 000 18, 890 18 18, 770 18, 660 18, 550 18, 440 18, 340 18, 230 18, 130 18, 020 17, 920 17, 820 19 17, 720 17, 620 17, 520 17, 420 17, 320 17, 230 17, 130 17, 040 16, 940 16, 850 20 16, 760 16, 670 16, 580 16, 490 16, 400 16, 320 16, 230 16, 140 16, 060 15, 970 21 15, 890 15, 810 15, 730 15, 650 15, 570 15, 490 15, 410 15, 330 15, 250 15; 170 22 15, 100 15, 020 14, 950 14, 870 14, 800 14, 730 14, 650 14, 580 14, 510 14, 440 23 14, 370 14, 300 14, 230 14, 160 14, 100 14, 030 13, 960 13, 900 13, 830 13; 770 24 13, 700 13, 640 13, 570 13, 510 13, 450 13, 390 13, 320 13, 260 13, 200 13, 140 25 13, 080 13, 020 12, 960 12, 900 12, 850 12, 790 12, 730 12, 670 12, 620 12, 560 26 12, 510 12, 450 12, 400 12, 340 12, 290 12, 230 12, 180 12, 130 12, 080 12, 020 27 11, 970 11, 920 11, 870 11, 820 11, 770 11, 720 11, 670 11, 620 11, 570 11, 520 28 11, 470 11, 420 11, 380 11, 330 11, 280 11, 230 11, 190 11, 140 11, 100 11, 050 29 11, 000 10, 960 10, 910 10, 870 10, 830 10, 780 10, 740 10, 690 10, 650 10, 610 30 10, 570 10, 520 10, 480 10, 440 10, 400 10, 360 10, 310 10, 270 10, 230 10, 190 31 10, 150 10, 110 10, 070 10, 030 9, 990 9, 950 9, 920 9, 880 9, 840 9, 800 32 9, 760 9, 720 9, 690 9, 650 9, 610 9, 580 9, 540 9, 500 9, 470 9, 430 33 9, 390 9, 360 9, 320 9, 290 9, 250 9, 220 9, 180 9, 150 9, 110 9, 080 34 9, 040 9, 010 8, 980 8, 940 8, 910 8, 880 8, 840 8, 810 8, 780 8, 740 35 8, 710 8, 680 8, 650 8, 620 8, 580 8, 550 8, 520 8, 490 8, 460 8, 430 36 8, 400 8, 360 8, 330 8, 300 8, 270 8, 240 8, 210 8, 180 8, 150 8, 120 37 8, 090 8, 070 8, 040 8, 010 7, 980 7, 950 7, 920 7, 890 7, 860 7; 840 38 7, 810 7, 780 7, 750 7, 720 7, 700 7, 670 7, 640 7, 610 7, 590 7; 560 39 7, 530 7, 510 7, 480 7, 450 7, 430 7, 400 7, 370 7, 350 7, 320 7, 300 40 7, 270 7, 240 7, 220 7, 190 7, 170 7, 140 7, 120 7, 090 7, 070 7, 040 41 7, 020 6, 990 6, 970 6, 940 6, 920 6, 890 6, 870 6, 850 6, 820 6, 800 42 6, 770 6, 750 6, 730 6, 700 6, 680 6, 660 6, 630 6, 610 6, 590 6, 560 43 6, 540 6, 520 6, 500 6, 470 6, 450 6, 430 6, 410 6, 380 6i 360 6, 340 44 6, 320 6, 290 6, 270 6, 250 6, 230 6, 210 6, 190 6, 160 6, 140 6, 120 45 6, 100 6, 080 6, 060 6, 040 6, 020 5, 990 5, 970 5, 950 5, 930 5, 910 46 5, 890 5, 870 5, 850 5, 830 5, 810 5, 790 5, 770 5, 750 5, 730 5, 710 47 5, 690| 5, 670 5, 650 5, 630 5, 610 5, 590 5, 570 5, 550 5, 530 5, 510 62 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Horizontal Component of Distance of Pilot Balloon—Continued 30 minutes after release of balloon; altitude of balloon, 6,100 yards—Continued Degrees.. Elevation angle of balloon in degrees and tenths of a degree 0.0 O.l 0.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 Horizontal component of distance of balloon in yards from observing point 48 5, 490 5, 470 5, 450 5, 440 5, 420 5, 400 5, 380 5, 360 5, 340 5, 320 49 5, 300 5, 280 5, 270 5, 250 5, 230 5, 210 5, 190 5, 170 5, 160 5, 140 50 5, 120 5, 100 5, 080 5, 060 5, 050 5, 030 5, 010 4, 990 4, 980 4, 960 51 4, 940 4, 920 4, 900 4, 890 4, 870 4, 850 4, 830 4, 820 4, 800 4, 780 52 4, 770 4, 750 4, 730 4, 710 4, 700 4, 680 4, 660 4, 650 4, 630 4, 610 53 4, 600 4, 580 4, 560 4, 550 4, 530 4, 510 4, 500 4, 480 4, 460 4, 450 54 4, 430 4, 420 4, 400 4, 380 4, 370 4, 350 4, 340 4, 320 4, 300 4, 290 55 4, 270 4, 260 4, 240 4, 220 4, 210 4, 190 4, 180 4, 160 4, 150 4, 130 56 4, 110 4, 100 4, 080 4, 070 4, 050 4, 040 4, 020 4, 010 3, 990 3, 980 57 3, 960 3, 950 3, 930 3, 920 3, 900 3, 890 3, 870 3, 860 3, 840 3, 830 58 3, 810 3, 800 3, 780 3, 770 3, 750 3, 740 3, 720 3, 710 3, 690 3, 680 59 3, 670 3, 650 3, 640 3, 620 3, 610 3, 590 3, 580 3, 560 3, 550 3, 540 60 3, 520 3, 510 3, 490 3, 480 3, 470 3, 450 3, 440 3, 420 3, 410 3, 400 61_____ 3, 380 3, 370 3, 350 3, 340 3, 330 3, 310 3, 300 3, 280 3, 270 3, 260 62 3, 240 3, 230 3, 220 3, 200 3, 190 3, 180 3, 160 3, 150 3, 130 3, 120 63 3, 110 3, 090 3, 080 3, 070 3, 050 3, 040 3, 030 3, 010 3, 000 2, 990 64 2, 970 2, 960 2, 950 2, 940 2, 920 2, 910 2, 900 2, 880 2, 870 2, 860 65 2, 840 2, 830 2, 820 2, 810 2, 790 2, 780 2, 770 2, 750 2, 740 2, 730 66 2, 720 2, 700 2, 690 2, 680 2, 670 2, 650 2, 640 2, 630 2, 610 2, 600 67 2, 590 2, 580 2, 560 2, 550 2, 540 2, 530 2, 510 2, 500 2, 490 2, 480 68 2, 460 2, 450 2, 440 2, 430 2, 410 2, 400 2, 390 2, 380 2, 370 2, 350 69 2, 340 2, 330 2, 320 2, 310 2, 290 2, 280 2, 270 2, 260 2, 240 2, 230 70 2, 220 2, 210 2, 200 2, 180 2, 170 2, 160 2, 150 2, 140 2, 120 2, 110 71 2, 100 2, 090 2, 080 2, 060 2, 050 2, 040 2, 030 2, 020 2, 010 1, 990 72 1, 980 1, 970 1. 960 1, 950 1, 930 1, 920 1, 910 1, 900 1, 890 1, 880 73 1, 860 1, 850 1, 840 1, 830 1, 820 1, 810 1, 800 1, 780 1, 770 1, 760 74 1, 750 1, 740 1, 730 1, 710 1, 700 1, 690 1, 680 1, 670 1, 660 1, 650 75 1, 630 1, 620 1, 610 1, 600 1, 590 1, 580 1, 570 1, 550 1, 540 1, 530 76 1, 520 1, 510 1, 500 1, 490 1, 480 1, 460 1, 450 1, 440 1, 430 1, 420 77 1, 410 1, 400 1, 390 1, 370 1, 360 1, 350 1, 340 1, 330 1, 320 1, 310 78 1, 300 1, 290 1, 270 1, 260 1, 250 1, 240 1, 230 1, 220 1, 210 1, 200 79 1, 190 1, 170 1, 160 1, 150 1, 140 1, 130 1, 120 1, 110 1, 100 1, 090 80 1, 080 1, 060 1, 050 1, 040 1, 030 1, 020 1, 010 1, 000 990 980 81 970 960 940 930 920 910 900 890 880 870 82 860 850 840 820 810 800 790 780 770 760 83 750 740 730 720 710 690 680 670 660 650 84 640 630 620 610 600 590 580 570 560 540 85 530 520 510 500 490 480 470 460 450 440 86 430 420 410 390 380 370 360 350 340 330 87 320 310 300 290 280 270 260 250 230 220 88 210 200 190 180 170 160 150 140 130 120 89 110 100 90 70 60 50 40 30 20 10 63 TM 11-420 3 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES Natural Cotangents Degrees 0.0 O.l O.2 0.3 0.4 0.5 0.6 O.7 O.8 0.9 4 14.30 13. 95 13.62 13. 30 13. 00 12.71 12. 43 12.16 11.91 11.66 5 11.43 11. 20 10. 99 10. 78 10. 58 10. 39 10.20 10.02 9. 845 9. 677 6 9. 5144 9. 3572 9. 2052 9. 0579 8. 9152 8. 7769 8. 6427 8. 5126 8. 3863 8. 2636 7 8.1443 8. 0285 7. 9158 7. 8062 7. 6996 7. 5958 7. 4947 7. 3962 7. 3002 7. 2066 8 7.1154 7. 0264 6. 9395 6. 8548 6. 7720 6. 6912 6. 6122 6. 5350 6. 4596 6. 3859 9 6. 3138 6. 2432 6.1742 6.1066 6. 0405 5. 9758 5. 9124 5. 8502 5. 7894 5. 7297 10 5. 6713 5. 6140 5. 5578 5. 5026 5. 4486 5. 3955 5. 3435 5. 2924 5. 2422 5.1929 11 5.1446 5. 0970 5. 0504 5. 0045 4. 9594 4. 9152 4. 8716 4. 8288 4. 7867 4. 7453 12 4. 7046 4. 6646 4. 6252 4. 5864 4. 5483 4. 5107 4. 4737 4.4374 4. 4015 4. 3662 13 4. 3315 4. 2972 4. 2635 4. 2303 4.1976 4.1653 4.1335 4.1022 4. 0713 4. 0408 14 4. 0108 3. 9812 3. 9520 3. 9232 3. 8947 3. 8667 3. 8391 3. 8118 3. 7848 3. 7583 15 3. 7321 3. 7062 3. 6806 3. 6554 3. 6305 3. 6059 3. 5816 3. 5576 3. 5339 3. 5105 16 3. 4874 3. 4646 3. 4420 3. 4197 3. 3977 3. 3759 3. 3544 3. 3332 3. 3122 3. 2914 17 3. 2709 3. 2506 3. 2305 3. 2106 3.1910 3. 1716 3.1524 3.1334 3.1146 3. 0961 18 3. 0777 3. 0595 3. 0415 3. 0237 3. 0061 2. 9887 2. 9714 2. 9544 2. 9375 2. 9208 19 2. 9042 2.8878 2. 8716 2. 8556 2. 8397 2. 8239 2. 8083 2. 7929 2. 7776 2. 7625 20 2. 7475 2. 7326 2. 7179 2. 7034 2. 6889 2. 6746 2. 6605 2. 6464 2. 6325 2. 6187 21 2. 6051 2. 5916 2. 5782 2. 5649 2. 5517 2. 5386 2. 5257 2. 5129 2. 5002 2. 4876 22 2. 4751 2. 4627 2. 4504 2. 4383 2. 4262 2. 4142 2. 4023 2. 3906 2. 3789 2 3673 23 2. 3559 2. 3445 2. 3332 2. 3220 2. 3109 2. 2998 2. 2889 2. 2781 2. 2673 2. 2566 24 2. 2460 2. 2355 2. 2251 2. 2148 2. 2045 2. 1943 2. 1842 2.1742 2.1642 2.1543 25 2.1445 2. 1348 2.1251 2. 1155 2.1060 2. 0965 2.0872 2. 0778 2. 0686 2. 0594 26 2. 0503 2. 0413 2. 0323 2. 0233 2. 0145 2. 0057 1. 9970 1. 9883 1. 9797 1. 9711 27 1. 9626 1. 9542 1. 9458 1. 9375 1. 9292 1. 9210 1.9128 1. 9047 1.8967 1. 8887 28 1. 8807 1.8728 1. 8650 1. 8572 1.8495 1.8418 1. 8341 1. 8265 1. 8190 1. 8115 29 1. 8040 1. 7966 1. 7893 1. 7820 1. 7747 1. 7675 1. 7603 1. 7532 1. 7461 1. 7391 30 1. 7321 1. 7251 1. 7182 1. 7113 1. 7045 1. 6977 1. 6909 . 1. 6842 1. 6775 1. 6709 31 1. 6643 1. 6577 1. 6512 1. 6447 1. 6383 1. 6319 1. 6255 1.6191 1. 6128 1. 6066 32 1. 6003 1. 5941 1. 5880 1. 5818 1. 5757 1. 5697 1. 5637 1. 5577 1. 5517 1. 5458 33 1. 5399 1. 5340 1. 5282 1. 5224 1. 5166 1. 5108 1.5051 1. 4994 1. 4938 1. 4882 34 1. 4826 1. 4770 1.4715 1. 4659 1. 4605 1. 4550 1. 4496 1. 4442 1. 4388 1. 4335 35 1.4281 1. 4229 1. 4176 1. 4124 1. 4071 1. 4019 1. 3968 1. 3916 1. 3865 1. 3814 36 1. 3764 1. 3713 1. 3663 1. 3613 1. 3564 1.3514 1. 3465 1. 3416 1. 3367 1. 3319 37 1. 3270 1. 3222 1. 3175 1. 3127 1. 3079 1. 3032 1. 2985 1. 2938 1.2892 1. 2846 38 1. 2799 1. 2753 1. 2708 1. 2662 1. 2617 1. 2572 1. 2527 1. 2482 1. 2437 1. 2393 39 1. 2349 1. 2305 1. 2261 1. 2218 1. 2174 1. 2131 1. 2088 1. 2045 1. 2002 1.1960 40 1.1918 1.1875 1.1833 1.1792 1.1750 1.1708 1.1667 1.1626 1.1585 1.1544 41 1.1504 1.1463 1.1423 1.1383 1. 1343 1.1303 1.1263 1. 1224 1. 1184 1 1145 42 1.1106 1. 1067 1.1028 1.0990 1. 0951 1. 0913 1. 0875 1.0837 1. 0799 1. 0761 43 1. 0724 1. 0686 1. 0649 1.0612 1. 0575 1. 0538 1. 0501 1. 0464 1. 0428 1. 0392 44 1. 0355 1. 0319 1. 0283 1. 0247 1. 0212 1. 0176 1.0141 1. 0105 1. 0070 1. 0035 45 1.0000 0. 9965 0. 9930 0. 9896 0. 9861 0. 9827 0. 9793 0. 9759 0. 9725 0. 9691 46 0. 9657 . 9623 .9590 .9556 .9523 .9490 .9457 .9424 . 9391 . 9358 47 . 9325 .9293 .9260 .9228 .9195 .9163 .9131 .9099 . 9067 . 9036 48 . 9004 .8972 .8941 .8910 .8878 .8847 .8816 .8785 .8754 . 8724 49 .8693 .8662 .8632 .8601 .8571 .8541 .8511 .8481 .8451 .8421 50 .8391 .8361 .8332 .8302 .8273 .8243 .8214 .8185 .8156 .8127 51 .8098 .8069 .8040 .8012 . 7983 . 7954 .7926 .7898 . 7869 .7841 52 __________ . 7813 . 7785 .7757 .7729 .7701 .7673 .7646 .7618 . 7590 .7563 53 .7536 . 7508 .7481 .7454 .7427 .7400 . 7373 .7346 . 7319 . 7292 54-_ . 7265 . 7239 .7212 .7186 . 7159 .7133 .7107 .7080 .7054 .7028 55 .7002 .6976 . 6950 .6924 .6899 .6873 .6847 .6822 .6796 . 6771 56 . 6745 . 6720 .6694 .6669 .6644 .6619 .6594 .6569 .6544 . 6519 67 . 6494 . 6469 .6445 .6420 .6395 .6371 .6346 . 6322 . 6297 . 6273 58 . 6249 . 6224 .6200 .6176 .6152 .6128 .6104 .6080 . 6056 .6032 59 . 6009 . 5985 .5961 . 5938 .5914 .5890 .5867 .5844 .5820 .5797 60 .5774 .5750 .5727 .5704 .5681 .5658 .5635 .5612 . 5589 . 5566 61 . 5543 . 5520 .5498 .5475 .5452 .5430 . 5407 .5384 .5362 . 5340 62 . 5317 . 5295 .5272 .5250 .5228 .5206 .5184 .5161 . 5139 . 5117 63 . 5095 . 5073 .5051 .5029 .5008 .4986 .4964 .4942 .4921 .4899 64 .4877 . 4856 .4834 .4813 .4791 .4770 .4748 .4727 .4706 .4684 65 .4663 .4642 .4621 .4599 .4578 .4557 .4536 .4515 .4494 .4473 66 . 4452 .4431 .4411 .4390 .4369 .4348 .4327 .4307 .4286 . 4265 67 . 4245 .4224 .4204 .4183 .4163 .4142 .4122 .4101 .4081 .4061 68 . 4040 .4020 .4000 .3979 .3959 .3939 .3919 .3899 .3879 . 3859 69 .3839 .3819 .3799 .3779 1 .3759 .3739 1 .3719 .3699 .3679 .3659 64 TM 11-420 VERTICAL AND HORIZONTAL COMPONENTS OF DISTANCES 3 Natural Cotangents—Continued Degrees. 0.0 O.l O.2 0.3 0.4 0.5 O.6 0.7 0.8 0.9 70 0. 3640 0. 3620 0. 3600 0. 3581 0. 3561 0.3541 0 3522 0 3502 0 3482 0 3463 71 .3443 .3424 . 3404 3385 . 3365 3346 3327 3307 3288 3269 72 .3249 .3230 . 3211 . 3191 .3172 3153 3134 3115 3096 3076 73 .3057 .3038 .3019 . 3000 . 2981 . 2962 2943 2924 2905 2886 74 .2867 . 2849 .2830 . 2811 . 2792 . 2773 2754 2736 2717 2698 75 .2679 .2661 . 2642 2623 . 2605 . 2586 2568 2549 2530 2512 76 .2493 .2475 . 2456 . 2438 . 2419 2401 2382 2364 2345 2327 77. .2309 .2290 . 2272 2254 2235 2217 2199 2180 2162 2144 78 .2126 .2107 . 2089 . 2071 2053 2035 2016 1998 1980 1962 79 . 1944 . 1926 . 1908 . 1890 1871 1853 1835 1817 1799 1781 80 .1763 . 1745 . 1727 . 1709 1691 167.3 1655 1638 1620 1602 81 . 1584 . 1566 . 1548 . 1530 1512 1495 1477 1459 1441 1423 82 . 1405 . 1388 . 1370 1352 1334 1317 1299 1281 1263 1246 83 . 1228 . 1210 . 1192 1175 1157 1139 1122 1104 1086 1069 84 . 1051 . 1033 . 1016 .0998 0981 0963 0945 0928 0910 ' 0892 85 .0875 .0857 .0840 0822 0805 0787 0769 0752 0734 0717 86 .0699 .0682 . 0664 0647 0629 0612 0594 0577 0559 O.542 87 . 0524 .0507 .0489 0472 0454 0437 0419 0402 0384 0367 88 .0349 .0332 .0314 .0297 0279 0262 0244 0227 0209 0192 89 - .0175 .0157 .0140 .0122 .0105 .0087 .0070 .0052 ' 0035 ’ 0017 [A. G. 062.11 (3-25-41).] By ORDER OF THE SECRETARY OF War: G. C. MARSHALL, Chief of Staff. Official: E. S. ADAMS, Major General, The Adjutant General. Distribution: R and H 1 (6); B 4, 6 (3); R 4 (3); 1 Bn 1 (5); Bn 11 (3); IC 1, 4, 6, 11 (3). (For explanation of symbols, see FM 21-6.) 65 0. S. GOVERNMENT PRINTING OFFICE: 1941 For sale by the Superintendent of Documents, Washington, D. C. Price 15 cents mill llllllll UNT LIBRARIES DENTON TX 76203 1001896183