Asymmetric thrust warning system for dual engine aircraft

Details Asymmetric thrust warning system for dual engine aircraft Asymmetric thrust warning system for dual engine aircraft

1984-02-06

1985-10-08

Groody, James J.

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

340945, 340963, 340626, 60 39091, 60 3915, 60224, 60261, 731174, 36443101, 36443102, G08B 2300, G08B 2100, F02K 300, G01L 326

Patent

active

045463530

ABSTRACT:
An asymmetric thrust warning system for an aircraft having two gas turbine engines. The compressor discharge pressures of the two engines are compared to determine the engine providing the lower thrust and to provide a signal indicative of the actual difference in thrust. If the difference in thrust exceeds a prescribed value related to aircraft altitude, a low thrust warning lamp is illuminated. In addition, the positions of the two augmenter metering valves are compared. If their positions significantly differ, the warning light associated with the valve having the minimum opening will be illuminated. A stall warning circuit may also be included as a part of the system.

REFERENCES:
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patent: 3538760 (1970-11-01), Atkey et al.
patent: 3697731 (1972-10-01), Kempema et al.
patent: 3736796 (1973-06-01), Hohenberg
patent: 3811273 (1974-05-01), Martin
patent: 3852958 (1974-12-01), Adams et al.
patent: 3867717 (1975-02-01), Moehring et al.
patent: 4196472 (1980-04-01), Ludwig et al.
patent: 4296601 (1981-10-01), Martin

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