Turn coordination inhibit for rotary wing aircraft control syste

Details Turn coordination inhibit for rotary wing aircraft control syste Turn coordination inhibit for rotary wing aircraft control syste

1994-05-03

1996-09-10

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft control

Automatic

244 1713, B64C 1316

Patent

active

055538177

ABSTRACT:
A turn coordination inhibit system (150) inhibits a rotary winged aircraft control system from operating in an automatic turn coordination mode when a pilot desired to perform a sideslip maneuver, e.g., a flat turn. When automatic turn coordination is not engaged (132,212,215), e.g., the aircraft is not in a coordinated turn, and either aircraft bank angle (119) exceeds an inhibit threshold magnitude (210) or a pilot yaw command provided by a pilot sidearm controller (155) exceeds a minimum threshold value (243), e.g., the sidearm controller is out of detent in the yaw axis, automatic turn coordination is inhibited (152). Automatic turn coordination remains inhibited until both aircraft bank angle falls below a reset threshold magnitude (230) and the sidearm controller is back in the detent position for the yaw axis (243).

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