INVESTIGATION OF THE RECOVERY FROM AN ENGINE FAILURE IN A TWIN ENGINE AUGMENTOR WING AIRCRAFT USING THE NAE AIRBORNE SIMULATOR.

A brief pilot simulation program was conducted using the NAE Airborne Simulator to investigate the airworthiness aspects of a twin-engine augmentor wing aircraft experiencing an engine failure during final approach. Three evaluation pilots flew a series of STOL approaches (-7. 5 degree glideslope to a 4000 ft runway) consisting of normal two-engine approaches and approaches on which an engine was failed at a height ranging from 17 to 92 ft above the runway elevation. Quantitative and qualitative flight evaluation data were collected illustrating that acceptable touchdown sink rates could be achieved following an engine failure at any point on the approach, provided that adequate pilot warning systems and automatic thrust compensation systems were available, and that correct pilot recovery technique was employed.