Accession Number : ADD011960

Title :   Asymmetric Thrust Warning System for Dual Engine Aircraft.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Stockton,William W

Report Date : 08 Oct 1985

Pagination or Media Count : 4

Abstract : This discloses 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.

Descriptors :   *PATENTS, *WARNING SYSTEMS, THRUST, ASYMMETRY, STALL WARNING INDICATORS, JET ENGINES, COMPARISON, INDICATOR LIGHTS, ALTITUDE, FLIGHT INSTRUMENTS, PRESSURE MEASUREMENT, VALVES

Subject Categories : Flight Control and Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE