Compound helicopter with no tail rotor

Details Compound helicopter with no tail rotor Compound helicopter with no tail rotor

1988-02-29

1990-05-29

Barefoot, Galen

Aeronautics and astronautics

Aircraft, heavier-than-air

Airplane and helicopter sustained

244 7C, 244 48, B64C 2722

Patent

active

049289071

ABSTRACT:
This helicopter invention uniquely has no anti-torque tail rotor. The tail propeller is used only for forward thrust during the airplane mode of flight and during the transition from vertical helicopter flight to forward airplane mode of flight, when the helicopter rotor may be feathered in a no-lift attitude.

REFERENCES:
patent: 2959373 (1960-11-01), Zuck
patent: 3029043 (1962-04-01), Churchill
patent: 3166271 (1965-01-01), Zuck
patent: 3197157 (1965-07-01), King
patent: 3572612 (1971-03-01), Irbitis

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