Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1998-10-06
2000-11-07
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
244 1721, B64C 2782
Patent
active
061424137
ABSTRACT:
The present invention relates to a device for control of an aerodynamic steering surface (D) of a helicopter (He), which includes an anti-torque system intended to counteract the torque induced by a main forward-movement and lifting rotor (R1) and comprising an anti-torque rotor (R2) exerting an anti-torque lateral thrust and said aerodynamic steering surface (D), controllable and generating an anti-torque transverse lift.
According to the invention, said device includes controls means (1A) for controlling said aerodynamic surface (D) in terms of speed, as a function of the difference between a helicopter (He) yaw control demand and a datum demand for the auxiliary rotor (R2), as long as said difference is not zero.
REFERENCES:
patent: 2818224 (1957-12-01), Sikorsky
patent: 3332643 (1967-07-01), Toner
patent: 3404737 (1968-10-01), Keder, Jr.
patent: 3833188 (1974-09-01), Robinson
patent: 5388785 (1995-02-01), Rollet et al.
patent: 5607122 (1997-03-01), Hicks et al.
French Search Report dated Jun. 18, 1998, 3 pages.
Delisle Valery Lionel
Dequin Andre-Michel
Leguay Pascal
Barefoot Galen L.
Eurocopter
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