Emergency Flight Control Using Only Engine Thrust and Lateral Center-of-Gravity Offset: A First Look. Meeting Paper AIAA-1997-3189, Research Engineering, NASA Dryden Flight Research Center
Burcham Jr., Frank W. and Burken, John and Maine, Trindel A. and Bull, John (1997) Emergency Flight Control Using Only Engine Thrust and Lateral Center-of-Gravity Offset: A First Look. Meeting Paper AIAA-1997-3189, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
Normally, the damage that results in a total loss of the primary flight controls of a jet transport airplane, including all engines on one side, would be catastrophic. In response, NASA Dryden has conceived an emergency flight control system that uses only the thrust of a wing-mounted engine along with a lateral center-of-gravity (CGY) offset from fuel transfer. Initial analysis and simulation studies indicate that such a system works, and recent high-fidelity simulation tests on the MD-11 and B-747 suggest that the system provides enough control for a survivable landing. This paper discusses principles of flight control using only a wing engine thrust and CGY offset, along with the amount of CGY offset capability of some transport airplanes. The paper also presents simulation results of the throttle-only control capability and closed-loop control of ground track using computer-controlled thrust.
| EPrint Type: | Other |
|---|---|
| Keywords: | B-747 aircraft, MD-11 aircraft |
| Subjects: | Aircraft/Project: Boeing 747 Aircraft/Project: MD-11 |
| ID Code: | 1322 |
| Deposited On: | 12 Febuary 2007 |
| Additional Information: | 17 pages. AIAA/ASME/SAE/ASEE 33rd Joint Propulsion Conference and Exhibit, Seattle, Washington, July 6-9, 1997. |
