4
THE JOURNAL OF SPACE FLIGHT
[Diagram of trajectories described on previous page.]
TH = Highest point of trajectory
V = Velocity, miles per second
R = Radius of earth, miles 3959
G = Acceleration, Miles/Sec^2 = 0.005098
H = R sin 1/2A
R l H = Major axis of orbit
b = angle of takeoff in respect to surface of earth
a = angle of flight on earth surface = TL
Formula 1: v = [(2GRH)^1/2]/R l H
Formula 2: for 180 degrees, v = (GR)^1/2
Formula 3: TH = R/2 * (Sin a/2 - versin a/2)

4
THE JOURNAL OF SPACE FLIGHT
[Diagram of trajectories described on previous page.]
TH = Highest point of trajectory
V = Velocity, miles per second
R = Radius of earth, miles 3959
G = Acceleration, Miles/Sec^2 = 0.005098
H = R sin 1/2A
R l H = Major axis of orbit
b = angle of takeoff in respect to surface of earth
a = angle of flight on earth surface = TL
Formula 1: v = [(2GRH)^1/2]/R l H
Formula 2: for 180 degrees, v = (GR)^1/2
Formula 3: TH = R/2 * (Sin a/2 - versin a/2)