In February, 1983, Stephen S. Rashid accepted a position at Pratt & Whitney Aircraft Commercial Products Division in East Hartford, Connecticut.  As a member of the Compressor Group, Mr. Rashid was responsible for the test data acquisition and analysis of the NASA Energy Efficiency Engine high pressure compressor final build.  He spent five years in support of the company’s Advanced Engine Programs, where he conducted preliminary design and feasibility studies on the PW6000, the Advanced Ducted Propulsor, the Propfan demonstrator, growth versions of the JT-8D, and numerous power generation adaptations of flight engines.  Mr. Rashid’s production engine experience included designing components for the compression systems of the PW4168,  PW4084, and I.A.E. V2500.  Of these, the PW4084 intermediate case presented the most significant technical challenge.  Due to the severe radius change and curvature of the flowpath, methods needed to be developed to design airfoils along arbitrary surfaces of revolution, rather than the cylindrical or conical surfaces typical  of other axial designs.



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