Rotorcraft blade-vortex interaction controller

Details Rotorcraft blade-vortex interaction controller Rotorcraft blade-vortex interaction controller

1995-05-12

1995-12-26

Focarino, Margaret A.

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244 1N, 244199, B64C 2700

Patent

active

054780292

ABSTRACT:
Blade-vortex interaction noises, sometimes referred to as "blade slap", are avoided by increasing the absolute value of inflow to the rotor system of a rotorcraft. This is accomplished by creating a drag force which causes the angle of the tip-path plane of the rotor system to become more negative or more positive.

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