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CFM International has confirmed the maiden test flight of its Leap engine family, beginning with a configuration to be used exclusively by the Leap-1C on the Comac C919.
The test flight, to validate aerodynamics and mechanical items, took place on 6 October using a Boeing 747 testbed at Victorville in California.
CFM says an analysis of the engine’s performance during the flight – which lasted nearly 3h – showed that it “behaved well” and that the test was “very successful”.