Engines
Leap Engines Take Big Strides to Service Entry This Year
CFM International is busily flight-testing its Leap 1A, 1B and 1C turbofans.
CFM International’s Leap 1B engine began flight testing on GE’s Boeing 747 flying test bed in late April.
CFM International’s Leap 1B engine began flight testing on GE’s Boeing 747 flying test bed in late April.

For CFM International, 2015 is a critical year in terms of program execution as the Leap engine family advances towards service entry on three new-generation narrowbody airliners. On May 19, the first example of the Airbus A320neo powered by the Leap 1A made its maiden flight. Both the Leap 1B for Boeing’s 737 Max aircraft and the Leap 1C for Comac’s C919 are being evaluated on a 747 flying test bed operated by GE Aviation, which is partnered with Snecma in the 40-year-old CFM joint venture.