A Preliminary Investigation of the Use of Throttles for Emergency Flight Control

Burcham Jr., F.W. and Fullerton, C. Gordon and Gilyard, Glenn B. and Wolf, Thomas D. and Stewart, James F. (1991) A Preliminary Investigation of the Use of Throttles for Emergency Flight Control. Technical Report NASA TM-4320, Research Engineering, NASA Dryden Flight Research Center.

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Abstract

A preliminary investigation was conducted regarding the use of throttles for emergency flight control of a multiengine aircraft. Several airplanes including a light twin-engine piston-powered airplane, jet transports, and a high performance fighter were studied during flight and piloted simulations. Simulation studies used the B-720, B-727, MD-11, and F-15 aircraft. Flight studies used the Lear 24, Piper PA-30, and F-15 airplanes. Based on simulator and flight results, all the airplanes exhibited some control capability with throttles. With piloted simulators, landings using manual throttles-only control were extremely difficult. An augmented control system was developed that converts conventional pilot stick inputs into appropriate throttle commands. With the augmented system, the B-720 and F-15 simulations were evaluated and could be landed successfully. Flight and simulation data were compared for the F-15 airplane.

EPrint Type:	NASA Technical Memorandum
Keywords:	Aerodynamic drag, Boeing 720 airplane, Control with thrust, Data acquisition, Emergency control, Engine control, Engine Failure, Engine monitoring instruments, Engine tests, F-15 airplane, F-15 simulation, Flight tests, Gas turbine engines, In-flight monitoring, Real-time operation, Research aircraft, Test ranges, Throttles-only control, Thrust vector control
Subjects:	Aircraft/Project: Multiple Aircraft (01 - 09) Aeronautics: (05) Aircraft Design, Testing And Performance
ID Code:	326
Deposited On:	01 September 2004
Additional Information:	24 pages. Prepared as AIAA-91-2222 for presentation at the AIAA/ASME/SAE/ASEE 27th Joint Propulsion Conference, Sacramento, California, June 24–26, 1991.