The LEAP engine family
The preferred engine for single-aisle aircraft
LEAP: Setting new standards
World class performance, durability, & utilization
Our flagship product, the LEAP engine, is a testament to our commitment to excellence, offering high fuel efficiency, reduced emissions, and lower noise levels. By integrating cutting-edge materials such as 3D RTM fan blades, 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 emissions vs. CFM56 engines
+70m
Flying hours
+150
Customers wordlwide
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 Family
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