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Development and flight test of an augmented thrust-only flight control system on an md-11 transport airplane
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Pappas, Drew Burcham Jr., Frank W. Maine, Trindel A. Burken, John J. |
| Copyright Year | 1996 |
| Description | An emergency flight control system using only engine thrust, called Propulsion-Controlled Aircraft (PCA), has been developed and flight tested on an MD-11 airplane. In this thrust-only control system, pilot flight path and track commands and aircraft feedback parameters are used to control the throttles. The PCA system was installed on the MD-11 airplane using software modifications to existing computers. Flight test results show that the PCA system can be used to fly to an airport and safely land a transport airplane with an inoperative flight control system. In up-and-away operation, the PCA system served as an acceptable autopilot capable of extended flight over a range of speeds and altitudes. The PCA approaches, go-arounds, and three landings without the use of any non-nal flight controls have been demonstrated, including instrument landing system-coupled hands-off landings. The PCA operation was used to recover from an upset condition. In addition, PCA was tested at altitude with all three hydraulic systems turned off. This paper reviews the principles of throttles-only flight control; describes the MD-11 airplane and systems; and discusses PCA system development, operation, flight testing, and pilot comments. |
| File Size | 1574412 |
| Page Count | 32 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960047451 |
| Archival Resource Key | ark:/13960/t9673cv3w |
| Language | English |
| Publisher Date | 1996-07-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Throttling Thrust Measurement Flight Tests Md 11 Aircraft Transport Aircraft Systems Engineering Thrust Vector Control Automatic Pilots Emergencies Hydraulic Equipment Thrust Loads Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
