Propulsion Systems Sizing Criteria for the Supersonic Transport 650199

The propulsion system installed weight has a significant effect on the Supersonic Transport payload. This fact necessitates careful analysis to insure the proper engine size that will meet operational and flexibility requirements without undue penalty. Operational and mission requirements which establish engine size are discussed. It is shown that sonic boom, transition altitude, community noise characteristics, and altitude for maximum L/D are the most important sizing elements. Trade-offs in each of these parameters are made to determine effects on take-off weight or payload. The afterburning turbojet and duct-burning turbo-fan are shown to be quite competitive in payload and operational characteristics.


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