General Electric is emphasizing the maturity of the advanced technology to be introduced in the GE9X engine for Boeing’s 777X, designed to provide a 10% lower fuel burn than the GE90 powering today’s 777-300ER. “We will run the high-pressure compressor five years before certification,” says Bill Fitzgerald, GE Aviation vice president and general manager of the commercial engines operation. The first version of the high-pressure compressor (HPC) is complete and will begin tests in ...

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