Future SST Engines with Particular Reference to Olympus 593 Evolution and Concorde Experience

The current achievements of Concorde and its powerplant are summarised, and the route by which technology may be evolved for making further SST performance and environmental advances appropriate to a second generation aircraft is indicated. Experimental data on takeoff noise is discussed. Future improvements in turbine cooling technology applied to a turbofan of around 1.7 bypass ratio, together with possible future improvements in aircraft L/D and structure weight, should permit the development of an SST with substantial increases in payload percentage and range relative to Concorde while meeting current FAR Part 36 noise limits without a suppression system. The engine could be derived from the current Olympus 593 Mk 610.