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Journal of Space Flight, v. 2, issue 9, November 1950
Page 3
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3. THE JOURNAL OF SPACE FLIGHT The following table gives approximated calculated values for different trajectories. Atmospheric resistance and the rotation of the earth are ignored and one degree of the earths surface is taken as 69 miles. RANGE ANGLE a: 2 degrees T-L MILES ON EARTHS SURFACE: 138 TAKE OFF ANGLE: 44 degrees, 30 minutes TAKEOFF VELOCITY Miles/Sec.: 0.910 TRAJECTORY HEIGHT MILES T-H: 34.25 RANGE ANGLE a: 5 degrees T-L MILES ON EARTHS SURFACE: 345 TAKE OFF ANGLE: 43 degrees, 45 minutes TAKE OFF VELOCITY Miles/Sec.: 1.421 TRAJECTORY HEIGHT MILES T-H: 88.45 RANGE ANGLE a: 10 degrees T-L MILES ON EARTHS SURFACE: 690 TAKE OFF ANGLE: 42 degrees, 30 minutes TAKE OFF VELOCITY Miles/Sec.: 1.967 TRAJECTORY HEIGHT MILES T-H: 165.00 RANGE ANGLE a: 20 degrees T-L MILES ON EARTHS SURFACE: 1380 TAKE OFF ANGLE: 40 degrees, 00 minutes TAKEOFF VELOCITY Miles/Sec.: 2.675 TRAJECTORY HEIGHT MILES T-H: 313.7 RANGE ANGLE a: 30 degrees T-L MILES OF EARTH'S SURFACE: 2070 TAKE OFF ANGLE: 37 degrees, 30 minutes TAKEOFF VELOCITY Miles/Sec.; 3.151 TRAJECTORY HEIGHT MILES T-H: 425.0 RANGE ANGLE a: 45 T-L MILES ON EARTHS SURFACE: 3105 TAKE OFF ANGLE: 33 degrees, 45 minutes TAKEOFF VELOCITY Miles/Sec.: 3.659 TRAJECTORY HEIGHT MILES T-H: 606.9 RANGE ANGLE a: 60 T-L MILES ON EARTHS SURFACE: 4140 TAKE OFF ANGLE: 30 degrees, 00 minutes TAKE OFF VELOCITY Miles/Sec.: 4.029 TRAJECTORY HEIGHT MILES T-H: 741.4 RANGE ANGLE a: 75 T-L MILES OFF EARTHS SURFACE: 5175 TAKE OFF ANGLE: 26 degrees, 15 minutes TAKEOFF VELOCITY Miles/Sec.: 4.274 TRAJECTORY HEIGHT MILES T-H: 759.8 RANGE ANGLE a: 90 T-L MILES ON EARTHS SURFACE: 6210 TAKE OFF ANGLE: 22 degrees, 30 minutes TAKEOFF VELOCITY Miles/Sec.: 4.473 TRAJECTORY HEIGHT MILES T-H: 818.8 A takeoff angle of 30 degrees and a velocity of 4 miles a second will enable a rocket to span the Atlantic ocean easily. Such a rocket would reach a height of 741 miles over the mid ocean and would require about 18 minutes for the trip. It should be noted that the ultralong trajectories are elliptical arcs rather than parabolas and that the takeoff angle is always less than 45 degrees Herman Bartenback Weirton, West Virginia --------------------------- CHICAGO ROCKET SOCIETY SECRETARY, MICHAEL CONLEY 207 S. Addison St. Bensonville, Illinois ( ) Please send me information on the Society and its activities ( ) Please send me a notice of the next meeting ( ) Lunar Project list, 1948 $ .65 ( ) Single copy of the Journal of Space Flight $ .25 ( ) Subscription to the Journal of Space Flight $ 2.25 for Ten issues a year ( ) Collected Technical Papers of the Chicago Rocket Society 1946-1948. 70 pages $1.00
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3. THE JOURNAL OF SPACE FLIGHT The following table gives approximated calculated values for different trajectories. Atmospheric resistance and the rotation of the earth are ignored and one degree of the earths surface is taken as 69 miles. RANGE ANGLE a: 2 degrees T-L MILES ON EARTHS SURFACE: 138 TAKE OFF ANGLE: 44 degrees, 30 minutes TAKEOFF VELOCITY Miles/Sec.: 0.910 TRAJECTORY HEIGHT MILES T-H: 34.25 RANGE ANGLE a: 5 degrees T-L MILES ON EARTHS SURFACE: 345 TAKE OFF ANGLE: 43 degrees, 45 minutes TAKE OFF VELOCITY Miles/Sec.: 1.421 TRAJECTORY HEIGHT MILES T-H: 88.45 RANGE ANGLE a: 10 degrees T-L MILES ON EARTHS SURFACE: 690 TAKE OFF ANGLE: 42 degrees, 30 minutes TAKE OFF VELOCITY Miles/Sec.: 1.967 TRAJECTORY HEIGHT MILES T-H: 165.00 RANGE ANGLE a: 20 degrees T-L MILES ON EARTHS SURFACE: 1380 TAKE OFF ANGLE: 40 degrees, 00 minutes TAKEOFF VELOCITY Miles/Sec.: 2.675 TRAJECTORY HEIGHT MILES T-H: 313.7 RANGE ANGLE a: 30 degrees T-L MILES OF EARTH'S SURFACE: 2070 TAKE OFF ANGLE: 37 degrees, 30 minutes TAKEOFF VELOCITY Miles/Sec.; 3.151 TRAJECTORY HEIGHT MILES T-H: 425.0 RANGE ANGLE a: 45 T-L MILES ON EARTHS SURFACE: 3105 TAKE OFF ANGLE: 33 degrees, 45 minutes TAKEOFF VELOCITY Miles/Sec.: 3.659 TRAJECTORY HEIGHT MILES T-H: 606.9 RANGE ANGLE a: 60 T-L MILES ON EARTHS SURFACE: 4140 TAKE OFF ANGLE: 30 degrees, 00 minutes TAKE OFF VELOCITY Miles/Sec.: 4.029 TRAJECTORY HEIGHT MILES T-H: 741.4 RANGE ANGLE a: 75 T-L MILES OFF EARTHS SURFACE: 5175 TAKE OFF ANGLE: 26 degrees, 15 minutes TAKEOFF VELOCITY Miles/Sec.: 4.274 TRAJECTORY HEIGHT MILES T-H: 759.8 RANGE ANGLE a: 90 T-L MILES ON EARTHS SURFACE: 6210 TAKE OFF ANGLE: 22 degrees, 30 minutes TAKEOFF VELOCITY Miles/Sec.: 4.473 TRAJECTORY HEIGHT MILES T-H: 818.8 A takeoff angle of 30 degrees and a velocity of 4 miles a second will enable a rocket to span the Atlantic ocean easily. Such a rocket would reach a height of 741 miles over the mid ocean and would require about 18 minutes for the trip. It should be noted that the ultralong trajectories are elliptical arcs rather than parabolas and that the takeoff angle is always less than 45 degrees Herman Bartenback Weirton, West Virginia --------------------------- CHICAGO ROCKET SOCIETY SECRETARY, MICHAEL CONLEY 207 S. Addison St. Bensonville, Illinois ( ) Please send me information on the Society and its activities ( ) Please send me a notice of the next meeting ( ) Lunar Project list, 1948 $ .65 ( ) Single copy of the Journal of Space Flight $ .25 ( ) Subscription to the Journal of Space Flight $ 2.25 for Ten issues a year ( ) Collected Technical Papers of the Chicago Rocket Society 1946-1948. 70 pages $1.00
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