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Emergency Flight Control Using Only Engine Thrust and Lateral Center-of-gravity Offset: a First Look
| Content Provider | Semantic Scholar |
|---|---|
| Author | Burcham, Frank W. Burken, John J. Maine, Trindel A. Bull, John |
| Copyright Year | 1997 |
| 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 wingmounted 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. |
| File Format | PDF HTM / HTML |
| DOI | 10.2514/6.1997-3189 |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19970022980.pdf |
| Alternate Webpage(s) | http://www.dfrc.nasa.gov/DTRS/1997/PS/H-2176.ps |
| Alternate Webpage(s) | https://www.nasa.gov/centers/dryden/pdf/88504main_H-2176.pdf |
| Alternate Webpage(s) | https://doi.org/10.2514/6.1997-3189 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |