The purpose of this study was to investigate the aerodynamic behavior of a helicopter rotor operating in the low-speed flight regime, particularly in the nap-of-the-earth (NOE) evasive mode. The effort consisted of reducing and analyzing existing AH-1G flight test response data acquired for simulated NOE flight under Contract DAAJ02-73-C-0105. Specific areas of interest analyzed in this study include blade/vortex interaction at 50 knots and angle-of-attack data derived from hot-wire measurements taken in hover.
Analysis of Low-Speed Helicopter Flight Test Data
1979
154 pages
Report
No indication
English
Aircraft , Aeronautics , Aerodynamics , Helicopter rotors , Rotor blades(Rotary wings) , Aerodynamic loading , Flight testing , Aerodynamic characteristics , Flight maneuvers , Low altitude , Low velocity , Pressure distribution , Vortices , Angle of attack , Hovering , H-1 aircraft , AH-1G aircraft , Nap of the earth flight , Huey Cobra
Helicopter flight test instrumentation
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