Aircraft flare control system utilizing an envelope limiter

Aeronautics and astronautics – Aircraft control – Automatic

Patent

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Details

244195, 364428, 364430, 364433, 318583, G06F 1550, G05D 102, B64C 1318

Patent

active

053779371

ABSTRACT:
An aircraft autoland flare control system which augments the autopilot's aircraft flare control commands in the event the aircraft exceeds defined flare envelopes, monitors aircraft longitudinal position, altitude, altitude rate, lateral position and lateral position rate during flare, and outputs commands to correct aircraft position thus minimizing touchdown dispersion in both the longitudinal and lateral axes. When the aircraft deviates from the flare envelopes, such as may be due to extreme atmospheric conditions such as wind gusts, a signal commanding pitch or roll correction is output to the pitch or roll control loop which subsequently acts to adjust aircraft position such that the aircraft's flarepath is returned to within the flare envelopes.

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