국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	DEVELOPMENT AND FLIGHT TEST OF AN EMERGENCY FLIGHT CONTROL SYSTEM USING ONLY ENGINE THRUST ON AN MD-11 TRANSPORT AIRPLANE
저자	Frank W. Burcham, Jr., John J. Burken, Trindel A. Maine and C. Gordon Fullerton
Keyword	Emergency Control; MD-11; Propulsion Control; Throttle-only control
URL	http://www.dfrc.nasa.gov/DTRS/1997/PDF/H-2170.pdf
보고서번호	NASA-TP-206217
발행년도	1997
출처	NASA Dryden Flight Research Center
ABSTRACT	An emergency flight control system that uses only engine thrust, called the propulsion-controlled aircraft (PCA) system, was developed and flight tested on an MD-11 airplane. The PCA system is a thrust-only control system, which augments pilot flightpath and track commands with aircraft feedback parameters to control engine thrust. The PCA system was implemented on the MD-11 airplane using only software modifications to existing computers. Results of a 25-hr flight test show that the PCA system can be used to fly to an airport and safely land a transport airplane with an inoperative flight control system. In up-and-away operation, the PCA system served as an acceptable autopilot capable of extended flight over a range of speeds, altitudes, and configurations. PCA approaches, go-arounds, and three landings without the use of any normal flight controls were demonstrated, including ILS-coupled hands-off landings. PCA operation was used to recover from an upset condition. The PCA system was also tested at altitude with all three hydraulic systems turned off. This paper reviews the principles of throttles-only flight control, a history of accidents or incidents in which some or all flight controls were lost, the MD-11 airplane and its systems, PCA system development, operation, flight testing, and pilot comments.