Performance Improvements of a Highly Integrated Digital Electronic Control System for an F-15 Airplane

Putnam, Terrill W. and Burcham Jr., Frank W. and Andries, Mary G. and Kelly, James B. (1985) Performance Improvements of a Highly Integrated Digital Electronic Control System for an F-15 Airplane. Technical Report NASA TM-86748, Research Engineering, NASA Dryden Flight Research Center.

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Abstract

The NASA highly integrated digital electronic control (HIDEC) program is structured to conduct flight research into the benefits of integrating an aircraft flight control system with the engine control system. A brief description of the HIDEC system installed on an F-15 aircraft is provided. The adaptive engine control system (ADECS) mode is described in detail, together with simulation results and analyses that show the significant excess thrust improvements achievable with the ADECS mode. It was found that this increased thrust capability is accompanied by reduced fan stall margin and can be realized during flight conditions where engine face distortion is low. The results of analyses and simulations also show that engine thrust response is improved and that fuel consumption can be reduced. Although the performance benefits that accrue because of airframe and engine control integration are being demonstrated on an F-15 aircraft, the principles are applicable to advanced aircraft such as the advanced tactical fighter and advanced tactical aircraft.

EPrint Type:	NASA Technical Memorandum
Keywords:	Control systems, Engines, F-15 aircraft, Integrated control, Propulsion control
Subjects:	Aircraft/Project: F-15 HIDEC Aircraft/Project: Multiple Aircraft (01 - 09) Aeronautics: (07) Aircraft Propulsion And Power
ID Code:	588
Deposited On:	31 January 2006
Additional Information:	14 pages. Prepared as AIAA Paper 85-1876 for presentation at the AIAA Guidance and Control Conference, Snowmass, Colorado, August 19-21, 1985.