Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1975-02-10
1976-05-18
Blix, Trygve M.
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
416167, B64C 2752
Patent
active
039572277
ABSTRACT:
A rotor pitch control mechanism for use with bearingless helicopter rotors is disclosed. The disclosed mechanism eliminates the requirement for vertical motion of the pitch link, thus alleviates the bearingless rotor problem of flapwise motion of the rotor blade in response to pitch control actuator forces. Stabilizing pitch-flap coupling and blade flap restraint is provided.
REFERENCES:
patent: 2234196 (1941-03-01), Prewitt
patent: 3092186 (1963-06-01), MacLean
Blix Trygve M.
Corr Joseph M.
Kelmachter Barry L.
The Boeing Company
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