The results of an in-flight simulation program to investigate longitudinal and lateral-directional handling qualities of the Martin SV-5P (Pilot) lifting body are presented and discussed. The in-flight simulation was a point stability simulation at five flight conditions: (1) Re-entry Glide, (2) Boost A, (3) Burnout, (4) Boost B, and (5) Landing Approach. The in-flight simulation was primarily a lateral-directional investigation, the longitudinal characteristics simulated at each flight condition remained fixed. Nine lateral-directional configurations were investigated for each flight condition for a total of 45 different configurations. The nine lateral-directional configurations at each flight condition were obtained by varying the SV-5P rudder to aileron interconnect ratio and the yaw and roll damping feedback gains. The USAF/CAL variable stability T-33 airplane was used as an in-flight simulator. A CAL and a Martin pilot each evaluated 50 configurations. A NASA and a USAF pilot each evaluated 6 configurations. All the configurations were evaluated in straight and level flight. In addition, the landing approach configurations were evaluated during descent at a simulated maximum L/D of the SV-5P. The handling qualities simulated were evaluated by the pilots based on the mission requirements and tasks at each flight condition of the SV-5P. Pilot comments were recorded on each configuration, and the pilots rated the configurations using a new pilot rating scale. The pilot comments and ratings were analyzed and interpreted in the light of the simulated characteristics and their handling qualities.
An in-Flight Simulation of Handling Qualities of the Sv-5P (Pilot) Lifting Body with Various Feedback Gains and Rudder to Aileron Interconnect Ratios
1967
180 pages
Report
No indication
English
Manned Spacecraft , Spacecraft Trajectories & Flight Mechanics , Aircraft , Lifting reentry vehicles , Flight control systems , Simulation , Handling , Feedback , Gain , Trailing control surfaces , Ailerons , Aerial rudders , Stability , Yaw , Roll , X-24a aircraft , Computer aided simulation , T-33 aircraft
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