Controlling Crippled Aircraft–With Throttles
Burcham, Frank W. and Fullerton, C. Gordon (1991) Controlling Crippled Aircraft–With Throttles. Technical Report NASA TM-104238, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
A multiengine crippled aircraft, with most or all of the flight control system inoperative, may use engine thrust for control. The NASA Dryden Flight Research Facility conducted a preliminary study of the capability and techniques for emergency flight control. Included in the study were light twin-engine piston-powered airplanes, an executive jet transport, commercial jet transports, and a high-performance fighter. Piloted simulations of the B-720, B-747, B-727, MD-11, C-402, and F-15 airplanes were studied, and the Lear 24, PA-30, and F-15 airplanes were flight tested. All aircraft showed some control capability with throttles and could be kept under control in up-and-away flight for an extended period of time. Using piloted simulators, landings with manual throttles-only control were extremely difficult. However, there are techniques that improve the chances of making a survivable landing. In addition, augmented control systems provide major improvements in control capability and make repeatable landings possible. Control capabilities and techniques are discussed.
| EPrint Type: | NASA Technical Memorandum |
|---|---|
| Keywords: | B-720, C-402, Control theory, Emergency flight control, Engine control, Engines-only control, F-15, Flight control, Flight simulation, Lear 24, Throttling, Thrust control |
| Subjects: | Aircraft/Project: Multiple Aircraft Aircraft/Project: Boeing 747 Aircraft/Project: PA-30 Aircraft/Project: Learjet Aircraft/Project: MD-11 (01 - 09) Aeronautics: (08) Aircraft Stability And Control Aircraft/Project: Boeing 727 Aircraft/Project: Boeing 720 Aircraft/Project: F-15 |
| ID Code: | 331 |
| Deposited On: | 01 September 2004 |
| Additional Information: | 30 pages. Prepared for presentation at the 44th International Air Safety Seminar, Singapore, November 12–14, 1991. |
