Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1991-09-30
1994-04-26
Barefoot, Galen
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
244 1719, 244 79, 416 52, 416147, B64C 2782
Patent
active
053059689
ABSTRACT:
In a helicopter having a tail rotor with a plurality of rotor blades extending radially from a hollow rotor shaft which is mounted for rotation about a transverse rotor axis, and having a push-pull rod extending through the hollow shaft and operably connected to the blades to manually vary the collective pitch of the blades, a device for automatically stabilizing the yaw motion of the helicopter includes a gyroscopic assembly having a gyro rotor mounted to rotate with the tail rotor, to pivot about a substantially longitudinal pivot axis by and at the outboard end of the push-pull rod and to automatically vary the collective pitch of the blades in response to yaw motion.
REFERENCES:
patent: 2384516 (1945-09-01), Young
patent: 2689099 (1954-09-01), Lightfoot
patent: 3004736 (1961-10-01), Culver et al.
patent: 3027948 (1962-04-01), Goland et al.
patent: 3211235 (1965-10-01), Bretl
patent: 3528633 (1970-09-01), Knemeyer
patent: 3532302 (1970-10-01), Dean
patent: 4272041 (1981-06-01), Mabuchi et al.
patent: 4759514 (1988-07-01), Burkam
Rock, G. "SSP-5", American Aircraft Modeler Mar. 1973, pp. 41-45 and 76-79.
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