Helicopter antitorque auxiliary propulsion system

Details Helicopter antitorque auxiliary propulsion system Helicopter antitorque auxiliary propulsion system

1985-12-16

1987-04-28

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft, heavier-than-air

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

244 52, B64C 2782

Patent

active

046607854

ABSTRACT:
Helicopter antitorque auxiliary propulsion system comprising a propeller attached to the tail boom adapted for powered rotation to create a directed air flow rearward of the helicopter, including a duct encircling the propeller and a pair of stabaron doors hingedly mounted in the ducted airstream to divert the air flow at high speed for directional control and to close at low speed and allow the air flow to be diverted through openings in the duct for directional and antitorque control.

REFERENCES:
patent: 1977724 (1934-10-01), Hays
patent: 2738147 (1956-03-01), Leech
patent: 3241791 (1966-03-01), Piasecki
patent: 3401886 (1968-09-01), Osborn
patent: 3432119 (1969-03-01), Miller
patent: 4200252 (1980-04-01), Logan et al.

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