Aircraft stall warning system
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United States of America Patent
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-
Mar 13, 1990
Grant Date -
N/A
app pub date -
Nov 13, 1984
filing date -
Nov 13, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A stall warning 'stick shaker' reference level signal is produced as a function of both flap position and total aircraft thrust. More specifically, a correction term .DELTA..alpha. is combined with a standard stick shaker reference level signal which is scheduled as a function of aircraft flap position. The .DELTA..alpha. signal is scheduled as a function of the total aircraft gross thrust coefficient. The resultant reference level signal produces advance stall warnings that are essentially invariant with engine power level.
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