Helicopters safety drive

Details Helicopters safety drive Helicopters safety drive

1975-06-26

1977-09-06

Blix, Trygve M.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

244 58, 416171, B64C 2718

Patent

active

040463354

ABSTRACT:
A helicopter is provided with an emergency drive system adapted to rotate the helicopter rotor in the event of motor failure, the drive system being powered by compressed gas stored in the helicopter. The system may comprise nozzles aimed at the plane of rotation of the rotor, or a turbine coupled to the rotor drive shaft.

REFERENCES:
patent: 1264712 (1918-04-01), Tweed
patent: 1886327 (1932-11-01), Carlson
patent: 2319169 (1943-05-01), Tampier
patent: 2899149 (1959-08-01), Breguiet
patent: 3325122 (1967-06-01), Young

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