Cyclic control stick

Details Cyclic control stick Cyclic control stick

1987-06-22

1989-03-14

Barefoot, Galen

Aeronautics and astronautics

Aircraft control

Pilot operated

74491, 74492, 74493, 74523, B64C 1304, B64C 1306

Patent

active

048119210

ABSTRACT:
A cyclic control stick of the type used in helicopters for reducing the safety hazards associated with such a mechanism in the event of a crewman being thrown violently into contact with the cyclic control stick resulting from a crash or the like. The cyclic control stick is configured to break away upon the exertion of an impact force which exceeds a predetermined value and/or is exerted for more than a momentary time duration. The cyclic control stick is also configured to be adjustable so as to locate the grip thereof as far away from the crewman as possible for safety reasons without comprising the comfort of the crewman or the use of the control stick, and a crushable pad is provided on the top of the grip for impact energy absorbing purposes.

REFERENCES:
patent: 2075110 (1937-03-01), Garretson
patent: 2827801 (1958-03-01), Ingolia
patent: 2910887 (1959-11-01), Helms
patent: 3071023 (1963-01-01), Herr et al.
patent: 3172683 (1965-03-01), D'Antini
patent: 3823618 (1974-07-01), Broyer
patent: 3851542 (1974-12-01), Adams et al.
patent: 3911759 (1975-10-01), Tanaka
patent: 3936015 (1976-02-01), Dean
patent: 3960031 (1976-06-01), Chometon
patent: 4655416 (1987-04-01), Carnell et al.

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