05 - Propulsion
LOW BPR TURBOFAN PERFORMANCE WITH POWER EXTRACTION
D. Rosell, Saab Aeronautics, Sweden; T. Grönstedt, Chalmers Univerity of Technology, Sweden; P.D. Bravo-Mosquera¹, F. Martini Catalano¹; ¹University of Sao Paulo, Brazil
A performance analysis of power extraction from a low bypass ratio mixed flow turbofan engine has been performed. Power extraction from the high-pressure and low-pressure shaft was evaluated at key parts of a fighter aircraft mission. It is shown how the engine net thrust and thrust specific fuel consumption depend on the mission definition, engine control limiters and the use of the afterburner.