The LEAP engine family
The preferred engine for single-aisle aircraft
LEAP, the future of flight
The industry standard in performance
Our flagship product, the LEAP engine, is a testament to our commitment to excellence, offering unparalleled fuel efficiency, reduced emissions, and lower noise levels. By integrating cutting-edge materials such as ceramic matrix composites and advanced manufacturing techniques like 3D printing, we are not only enhancing engine performance but also ensuring sustainability. This relentless pursuit of technological advancement solidifies our position as a leader in the aviation industry, driving the future of flight.
LEAP overview
15%
Less fuel and CO2 vs. CFM56 engines
50%
lower emissions margin to CAEP/6 regulation
50%
Up to 50% margin to ICAO CAEP/6 NOx regulation
The LEAP family
The LEAP family powers all variants of the Airbus A320neo, Boeing 737 MAX, and COMAC C919.
Airbus A320neo family
LEAP-1A (dual-source)
Max take-off thrust: 33,000 lbf
Fan diameter 78 in
Boeing 737 MAX
LEAP-1B (sole-source)
Max take-off thrust (at sea level): 28,000 lbf
Fan diameter: 69 in
COMAC C919
LEAP-1C integrated propulsion system
Max take-off thrust (at sea level): 31,000 lbf
Fan diameter: 78 in