Helicopter with opposite rotating torque cancelling horizontal p

Details Helicopter with opposite rotating torque cancelling horizontal p Helicopter with opposite rotating torque cancelling horizontal p

1974-08-02

1976-01-20

Blix, Trygve M.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

416169, 416129, 244 1727, B64C 2710

Patent

active

039333248

ABSTRACT:
A helicopter having a small diameter and fast rotating upper horizontally disposed conventional airplane propeller and a large diameter slower and counter-rotating large diameter bladed rotor equipped with variable pitch blades is provided and the bladed rotor is mounted in such a manner that its plane of rotation may be readily adjustably canted in all directions relative to the axis of rotation of the small diameter upper airplane-type propeller. Further, the blades of the rotor may be simultaneously adjusted in pitch and a single manually shiftable control is provided for selectively simultaneously or independently canting the plane of rotation of the rotor blades and varying the pitch of the rotor blades. Also, the helicopter is provided with a powered shaft for driving the small diameter upper airplane propeller and a drive connection including a high torque release and overrunning clutch drivingly couples the small diameter upper conventional airplane propeller to the lower large diameter and slower rotating bladed rotor.

REFERENCES:
patent: 955049 (1910-04-01), Brekke
patent: 1800470 (1931-04-01), Oehmichen
patent: 2170733 (1939-08-01), Sharpe
patent: 2192300 (1940-03-01), Droitcour
patent: 2192881 (1940-03-01), Bothezat
patent: 2382460 (1945-08-01), Young
patent: 2672115 (1954-03-01), Conover
patent: 2838123 (1958-06-01), Olcott
patent: 3018984 (1962-01-01), Beau Rust

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