Engine architecture
The RISE program is demonstrating foundational technologies that will allow CFM to define the optimum engine architecture to best meet the specifications and aircraft development schedule.
Open Fan architecture, the most efficient option
Targeting a 20% improvement
The pursuit of ever-increasing propulsive efficiency has driven the growth of engine fan diameter in commercial jet engines over the past five decades. This progression is ultimately leading to the Open Fan concept which is currently the most efficient option to improve the propulsive efficiency of the engine by 20% compared to today's most efficient engines.
Comfortable cabin experience
This advanced, new generation Open Fan architecture will be able to fly at the same speed as current single aisle aircraft (up to Mach 0.8, or 80 percent the speed of sound) with a noise signature that will meet anticipated future regulations.
Airframe integration
The technologies developed as part of the RISE program require closer integration with the aircraft manufacturers than ever before. Through a strong partnership with aircraft manufacturers, we can fully optimize installed performance of advanced architectures.
Flight tests this decade
In 2022, Airbus and CFM launched an A380 flight test demonstrator program for the advanced Open Fan to mature and accelerate the development of advanced propulsion technologies.
The flight test program looks to achieve several objectives that could contribute to future engine and aircraft efficiency improvements, including: enhanced understanding of engine/wing integration and aerodynamic performance, as well as propulsive system efficiency gains; validating performance benefits and evaluating acoustic models; and testing compatibility with 100% Sustainable Aviation Fuels (SAF).