Aeronautics and astronautics – Aircraft control – Pilot operated
Patent
1980-12-22
1983-09-13
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
Pilot operated
244 75R, 244229, 244226, 74479, B64C 1346
Patent
active
044037562
ABSTRACT:
A bifurcated feel unit for use in a dual path flight control system includes separate input levers for the pilot and copilot control paths. The input levers pivot about a common axis but are capable of independent rotation upon override of the breakout pogos associated with the control system external to the feel unit. Each input lever is coupled to a source of resistive force, preferably a piston within a hydraulic chamber. Normally the feel force supplied is the sum of the resistive forces applied to each input lever. In the event of a jam in one path of the flight control system, the feel force supplied to the remaining operable path is reduced in proportion to the reduction in available control surface.
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Berlin J. Burton
Schweizer Erwin V.
Barefoot Galen L.
The Boeing Company
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