A technological LEAP forward

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-1A assemblé à Villaroche

Welcome to the great LEAP® forward: the next-generation engine developed by Safran Aircraft Engines and GE, via their jointly-owned company CFM, offers a perfect combination of performance and technology.

Developing 28,000 to 34,000 pounds of thrust, the LEAP delivers major efficiency benefits for operators of the next generation of single-aisle commercial jets, including 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).

These performance benefits are built on the proven technological excellence of Safran Aircraft Engines and GE. For example, Safran Aircraft Engines developed a new 3D woven composite material for the fan case and blades. Other innovations from Safran Aircraft Engines include the advanced 3D aerodynamic design technique used for the blades of the low-pressure section, and new stronger, lighter alloys such as titanium aluminide (TiAl) and ML340.




The LEAP design draws on the very best aspects of the CFM56, including exceptional reliability and unrivaled operating costs, as well as low maintenance costs thanks to optimized engine architecture, making the LEAP the engine of choice for next-generation single-aisle jetliners. The three available versions have already been selected by the world's leading planemakers: the LEAP-1A® to power the Airbus A320neo - entry into service in august 2016 ; the LEAP-1B® for the Boeing 737 MAX - entry into service in may 2017; and the LEAP-1C® for the COMAC C919. Before its entry into service, the LEAP was already the best-selling engine under development in history.

Adapting to the sustained production rates demanded by planemakers will represent an unprecedented challenge for Safran Aircraft Engines and CFM. Safran has therefore invested in new industrial capacity, notably by building two new dedicated facilities for the production of 3D RTM composite parts. Safran Aircraft Engines is also able to draw on the unique expertise of its teams as well as the suppliers in its international supply chain, and has established high-added-value partnerships with key small and intermediate-sized companies.




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