Flight Evaluation of Modifications to a Digital Electronic Engine Control System in an F-15 Airplane. Meeting Paper AIAA-1983-0537, Research Engineering, NASA Dryden Flight Research Center
Burcham Jr., Frank W. and Myers, Lawrence P. and Zeller, John R. (1983) Flight Evaluation of Modifications to a Digital Electronic Engine Control System in an F-15 Airplane. Meeting Paper AIAA-1983-0537, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
The third phase of a flight evaluation of a digital electronic engine control system in an F-15 has recently been completed. It was found that DEEC software logic changes and augmentor hardware improvements resulted in significant improvements in engine operation. For intermediate to maximum power throttle transients, an increase in altitude capability of up to 8000 ft was found, and for idle to maximum transients, an increase of up to 4000 ft was found. A nozzle instability noted in earlier flight testing was investigated on a test engine at NASA Lewis Research Center, a DEEC software logic change was developed and evaluated, and no instability occurred in the Phase 3 flight evaluation. The backup control airstart modification was evaluated, and gave an improvement of airstart capability by reducing the minimum airspeed for successful airstarts by 50 to 75 knots.
| EPrint Type: | Other |
|---|---|
| Keywords: | Digital electronic engine control (DEEC), F-15 aircraft |
| Subjects: | Aircraft/Project: F-15 |
| ID Code: | 1532 |
| Deposited On: | 04 April 2007 |
| Additional Information: | 10 pages. AIAA 21st Aerospace Sciences Meeting, Reno, Nevada, January 10-13, 1983. |
