Pratt & Whitney’s PW1100G geared turbofan for the re-engined Airbus A320NEO has entered flight tests on the company’s Boeing 747SP flying testbed. The flight tests, which began from Pratt’s Montreal, Quebec facility on May 15, get underway as the engine manufacturer confirms it has decided to drop the variable area fan nozzle (VAFN) feature from the NEO engine. The move, which Pratt first raised as a possibility in April, follows performance testing of the PW1100G fan at its West ...

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