Dual power helicopter without a tail rotor

Details Dual power helicopter without a tail rotor Dual power helicopter without a tail rotor

2006-09-25

2009-06-16

Swiatek, Rob (Department: 3643)

Aeronautics and astronautics

Aircraft, heavier-than-air

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

C244S017150

Reexamination Certificate

active

07546976

ABSTRACT:
A dual power helicopter without a tail rotor. The dual power helicopter of present invention primarily uses two power devices which can be rotated in opposite directions to control the flight of the helicopter. The two power devices are rotated in the opposite directions by steering gears from a same engine, such that the engine power can be completely transmitted to the two power devices, enabling the engine power to be completely developed, thereby improving performance of the helicopter.

REFERENCES:
patent: 2452726 (1948-11-01), Buchet
patent: 3138348 (1964-06-01), Stahmer
patent: 3246861 (1966-04-01), Curci
patent: 4703906 (1987-11-01), Eickmann

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