Aeronautics and astronautics – Aircraft control – Pilot operated
Patent
1995-05-15
1998-08-25
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
Pilot operated
B64C 1316
Patent
active
057975647
ABSTRACT:
A system for backdriving the flight deck controllers of a fly-by-wire aircraft that is under autopilot control to provide a pilot with tactile and visual feedback of autopilot activity. The system, distributed between the aircraft primary flight computers and the autopilot flight computer, uses actuators mechanically coupled to each flight deck controller to position the flight deck controller to mimic manual operation of the flight control surfaces. Additionally, the system allows smooth disengagement of the autopilot and transfer of the aircraft to pilot control when the pilot takes control of any flight deck controller by moving it from a backdrive system-commanded position by a predetermined displacement for a predetermined time.
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Hughes, D., Fly-By-Wire 777 Keeps Traditional Cockpit, Aviation Week and Space Technology, May 1, 1995.
Borgens David B.
Buus Henning
Cartmell Daniel H.
Duffy Keith S.
Gast Mark E.
Barefoot Galen L.
The Boeing Company
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