Engines
737 Max's Leap-1B Engine Begins Flight Tests
CFM International's Leap-1B turbofan for the Boeing 737 Max is on track to complete certification next year and enter service in 2017.
CFM International's Leap-1B engine is now involved in flight trials on GE's 747 flying test bed. (Photo: CFM International)
CFM International's Leap-1B engine is now involved in flight trials on GE's 747 flying test bed. (Photo: CFM International)

CFM International’s Leap-1B engine made its first flight on a Boeing 747 testbed on April 29, the engine manufacturer confirmed today. The GE-Snecma partnership reported that the engine performed well in its five-and-a-half-hour flight, completing multiple aeromechanical test points at various altitudes.