Aerodynamic characteristics of a 1/6-scale powered model of the rotor systems research aircraft
Raymond E. Mineck, Carl E. Freeman, United States. National Aeronautics and Space Administration, U.S. Army Air Mobility Research and Development Laboratory
National Aeronautics and Space Administration, 1977 - Transportation - 238 pages
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a,deg advance ratio Airfoil section NACA angle of attack auxiliary engine thrust auxiliary thrust engine blade collective pitch angle compound helicopter compound tail configuration decreases downwash drag coefficient Effect of auxiliary Effect of forward effect of wing empennage engine thrust coefficient flap deflection forward speed free-stream dynamic pressure fuselage helicopter tail incidence and flap increased with increasing Langley Research Center lateral aerodynamic characteristics lift coefficient lift-curve slope longitudinal aerodynamic characteristics lower horizontal tail model support system nacelles and pylon pitching-moment coefficient positive effective dihedral presented in figure reference center Root chord rotor systems research rotor wake rotor-off rotor-wake effects RSRA slipstream static directional stability static longitudinal stability strain-gage balance systems research aircraft T-tail tail contribution tail longitudinal aerodynamics tunnel U.S. Army U.S. Customary Units V/STOL variable-incidence wing variation vertical tail wind-tunnel wing incidence wing lift wing longitudinal aerodynamics wing/flap settings