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Flight evaluation of an extended engine life mode on an f-15 airplane
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Myers, Lawrence P. Conners, Timothy R. |
| Copyright Year | 1992 |
| Description | An integrated flight and propulsion control system designed to reduce the rate of engine deterioration was developed and evaluated in flight on the NASA Dryden F-15 research aircraft. The extended engine life mode increases engine pressure ratio while reducing engine airflow to lower the turbine temperature at constant thrust. The engine pressure ratio uptrim is modulated in real time based on airplane maneuver requirements, flight conditions, and engine information. The extended engine life mode logic performed well, significantly reducing turbine operating temperature. Reductions in fan turbine inlet temperature of up to 80 F were obtained at intermediate power and up to 170 F at maximum augmented power with no appreciable loss in thrust. A secondary benefit was the considerable reduction in thrust-specific fuel consumption. The success of the extended engine life mode is one example of the advantages gained from integrating aircraft flight and propulsion control systems. |
| File Size | 1277467 |
| Page Count | 32 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920020416 |
| Archival Resource Key | ark:/13960/t8rc1zq7c |
| Language | English |
| Publisher Date | 1992-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Flight Tests Flight Conditions Propulsion System Performance Inlet Temperature Gas Turbine Engines Fuel Consumption Aircraft Engines F-15 Aircraft Propulsion System Configurations Real Time Operation Air Flow Research Aircraft Pressure Ratio Thrust Operating Temperature 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 |
