A Flight evaluation of lunar landing trajectories using a jet VTOL test vehicle: L. Stewart Rolls and Fred J. Drinkwater III.
National Aeronautics and Space Administration, 1963 - Science - 14 pages
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1000 feet altitude Aeronautics and Space amount of fuel associated with lunar attitude changes Attitude Control axis calm air control motions control power control VTOL D-4949 National Aeronautics Drinkwater engines EVALUATION OF LUNAR February field of view FLIGHT EVALUATION Flight paths investigated flight-path angle fuel for control horizon hovering VTOL vehicle initial point JECTORIES JET VTOL TEST jet-supported VTOL aircraft lift and reaction-type lunar landing craft lunar landing trajectories lunar surface maneuvers mile from touchdown minutes mission easily NASA NASA TN NASA TECHNICAL NOTE OTS price paths investigated started perform the mission pilot could perform power and damping preliminary study presented on figure problems associated reaction-type controls Rolls and Fred scribed touchdown point sink rate Space Administration standard deviation started at 1000 Stewart Rolls study of problems TECHNICAL NOTE D-4949 TN D-4949 National touchdown and required various trajectories vehiclefs vertical descent view included VTOL TEST VEHICLE X-14A aircraft zero rotary damping