Force-gradient cyclic stick system for a helicopter

Details Force-gradient cyclic stick system for a helicopter Force-gradient cyclic stick system for a helicopter

1995-12-22

1998-05-05

Grant, William

Aeronautics and astronautics

Aircraft control

Pilot operated

244234, 244236, 244181, B64C 1306, B64C 1346

Patent

active

057463980

ABSTRACT:
A cyclic stick system for a helicopter includes sensors for measuring at least one parameter representative of the current flight status of the helicopter. In response to the at least one parameter, the cyclic stick system either (1) continuously and automatically recenters the forces on the cyclic stick, thus canceling out the residual static forces, or (2) allows the pilot fully to feel the countering action of the elastic return device on the cyclic stick.

REFERENCES:
patent: 2695145 (1954-11-01), Lear et al.
patent: 2936976 (1960-05-01), Greenland et al.
patent: 4607201 (1986-08-01), Koenig
patent: 4607202 (1986-08-01), Koenig
patent: 4664346 (1987-05-01), Koenig
patent: 5489830 (1996-02-01), Fernandez

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