Helicopters

Details Helicopters Helicopters

B - Operations, Transporting

64

C

244/15

B64C 27/04 (2006.01) A01D 46/00 (2006.01) B65G 67/24 (2006.01)

Patent

CA 1044208

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.

229730

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