TURN COORDINATION INHIBIT FOR ROTARY WING AIRCRAFT CONTROL SYSTEM

A turn coordination inhibit system (150) inhibits a rotary winged aircraft c ontrol 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 en gaged (132, 212, 215), e.g., the aircraf...

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Bibliographic Details
Main Authors KELLER, JAMES F, FOGLER, DONALD L., JR, SKONIECZNY, JOSEPH, GOLD, PHILLIP J
Format Patent
LanguageEnglish
French
Published 11.02.2003
Edition6
Subjects
AEROPLANES
AIRCRAFT
AVIATION
CONTROLLING
COSMONAUTICS
HELICOPTERS
PERFORMING OPERATIONS
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TRANSPORTING
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Summary:A turn coordination inhibit system (150) inhibits a rotary winged aircraft c ontrol 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 en gaged (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) ex ceeds 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 inh ibited until both aircraft bank angle falls below a reset threshold magnitude (230) and the sidearm controller is back in the detent positi on for the yaw axis (243).
Bibliography:Application Number: CA19952189455