1969-02-01

GE4 SUPERSONIC TRANSPORT ENGINE-DEVELOPMENT PROGRESS AND STATUS 690379

The Phase III program for development of the U.S. Supersonic Transport was initiated on January 1, 1967. This program includes design and flight qualification of the engine, and 100 hours of flight test in two prototype aircraft. The GE4 Phase III development program, now entering its third year, has passed several major milestones. Prototype engines have been built and tested to thrust levels in excess of 63,000 pounds. Component tests, sea level engine tests, and simulated flight testing are being conducted and results are described. A general description is provided of the engine, its performance, and the design features to meet the requirements of the commercial Supersonic Transport. Technology advancements in component design, materials and joining techniques are described as they relate to the development program. A brief discussion of development problems encountered and their solutions is included.

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