Aeronautics and astronautics – Aircraft control – Pilot operated
Patent
1979-08-17
1981-06-09
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
Pilot operated
244 78, 244213, 74480R, 74479, B64C 1304, B64C 1336
Patent
active
042720460
ABSTRACT:
The present invention is in the field of aircraft flight spoiler control mechanisms. The invention enables the conventional, primary spoiler control system to retain its operational characteristics while accommodating a secondary input controlled by a conventional computer system to supplement the settings made by the primary input. This is achieved by interposing springs between the primary input and the spoiler control unit. The springs are selected to have a stiffness intermediate the greater force applied by the primary control linkage and the lesser resistance offered by the spoiler control unit. Thus, operation of the primary input causes the control unit to yield before the springs, yet, operation of the secondary input, acting directly on the control unit, causes the springs to yield and absorb adjustments before they are transmitted into the primary control system.
REFERENCES:
patent: 2910886 (1959-11-01), Pulleys
patent: 2957656 (1960-10-01), Lewis et al.
patent: 3789692 (1974-02-01), Farr et al.
patent: 4071208 (1978-01-01), Baker
Barefoot Galen L.
Manning John R.
Nelson Wallace J.
Osborn Howard J.
The United States of America as represented by the Administrator
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