Method and apparatus for limiting adverse yaw-induced roll durin

Details Method and apparatus for limiting adverse yaw-induced roll durin Method and apparatus for limiting adverse yaw-induced roll durin

1987-08-04

1989-11-28

LaRoche, Eugene R.

Boots, shoes, and leggings

60702, 244 76R, 244194, 73178T, 340965, G05D 100

Patent

active

048842052

ABSTRACT:
An apparatus and method for compensating for asymmetrically produced total engine thrust caused by an engine failure in a multiengine aircraft. The presence of asymmetric total thrust is detected by monitoring aircraft performance parameters, including engine manifold pressures, airspeed, roll angle and yaw. When an engine failure resulting in the production of asymmetric thrust is detected at air speeds below a minimum controllable air speed for the aircraft, and during large aircraft bank angles, the power output from an operating engine is reduced to regain and maintain controllable flight conditions. Limiting the adverse yaw produced by an engine failure by reducing power output from operative engines reduces the tendency of the aircraft to roll into the inoperative engine, hence the aircraft is halted.

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M. Lacagnina, "The Which Hunter", AOPA Pilot, (Aug. 1983): 45, 47.
P. Lert, "The Low Thrust Detector System Can Give the Pilot of a Twin an Extra Margin of Safety", Air Progress, (Aug. 1982) (Reprint).
"Feather Guide", Professional Pilot, (May 1982): 34.

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