Wind tunnel study covered transition speed range from hovering to normal flaps-retracted flight; effects of flap deflection, thrust coefficient, stabilizer incidence, and ground proximity; additional tests of effects of thrust line incidence, direction of inboard propeller rotation, leading edge slat, flap chord extension, and tail fan operation.
Longitudinal aerodynamic characteristics of four-propeller deflected slip-stream VTOL model including effects of ground proximity
NASA -- Tech Note
1960
136 pages
Article (Journal)
English
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