The LEAP® engine was developed by Safran Aircraft Engines and GE through their joint company, CFM International, to power the next generation of single-aisle commercial jets. Combining the best technologies from the two partners, LEAP offers operators exceptional performance while retaining the legendary reliability of the CFM56®. These capabilities have already made the engine a best seller, even before it has entered revenue service.
LEAP-1C: integrated propulsion system for the Comac C919
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The LEAP-1C, the first member of the LEAP® engine family, was selected by Comac (Commercial Aircraft Corporation of China) as the sole Western powerplant for its new C919 single-aisle jetliner. It offers operators exceptional technical, economic and environmental performance, with a 15% reduction in fuel consumption and CO2 emissions versus current engines, a 50% cut in NOx emissions, and compliance with the most stringent noise standards (the ICAO's Chapter 14 regulations).
CFM, in partnership with Nexcelle*, will deliver a complete integrated propulsion system (IPS) for the new Chinese jetliner, also including the nacelle and the thrust reverser.
The LEAP-1C was the first LEAP engine to begin flight testing, on a flying testbed (FTB) at Victorville, California, in September 2014 and operated its first flight in Shangaï in May 2017.
*Nexcelle is a 50/50 joint venture between Middle River Aircraft Systems (GE) and Safran Nacelles
|Applications||COMAC C919ST, COMAC C919ER|
|Max. takeoff thrust (lbf)||31,000|
|Fan diameter (in)||77|
|Number of fan/low-pressure/high-pressure compressor stages||1+3+10|
|Number of high-pressure/low-pressure turbine stages||2+7|
|Entry into service||2018|