Designed, produced and marketed by CFM International, the LEAP-1B is the exclusive powerplant for Boeing’s new-generation 737 MAX single-aisle jet.
15% reduction in fuel consumption and CO2 emissions*
*Compared to previous-generation engines.
Up to 50% reduction in NOx emissions*
*In accordance with the ICAO’s CAEP/6 environmental standard.
Meets the most stringent noise standards (ICAO’s Chapter 14)
An environmentally-friendly engine
Designed to meet the challenge of decarbonizing air transport, the LEAP-1B engine offers Boeing 737 MAX operators enhanced performance in terms of fuel consumption and CO2 emissions (15% lower1), NOx emissions (up to 50% lower2) and noise (in accordance with Chapter 14).
1. Compared to previous-generation engines.
2. In accordance with the ICAO’s CAEP/6 environmental standard.
Innovation from nose to tail
To achieve its remarkable performance, the LEAP-1B is packed with innovative technologies and materials. The use of a 3D woven composite material and the RTM (resin transfer molding) process developed and patented by Safran Aircraft Engines makes it possible to produce fan blades that are lighter, stronger and more durable. The low-pressure turbine blades are machined from an innovative titanium-aluminide alloy that is lighter and more resistant to high temperatures. The low-pressure turbine rings and airfoils are made of CMC (ceramic matrix composite) materials and the fuel injectors are 3D printed.
High-performance industrial organization
Thanks to Factory 4.0 facilities and unique processes, Safran Aircraft Engines has achieved a production ramp-up that is unprecedented in commercial aviation history.