GE Aviation and Safran launch the CFM RISE program to develop a new generation of sustainable engines.

The program was announced on June 14, 2021. According to the company's press release, RISE stands for Revolutionary Innovation for Sustainable Engines. 

The new development aims for 20% less fuel consumption and emissions than today’s engines. It is also supposed to feature open fan architecture and hybrid electric capability while being able to run on 100% sustainable aviation fuel and have hydrogen capability in scope.

The aim of the program is to develop and mature technologies that could enter the market in the form of new engines by the mid-2030s.

“Together, through the RISE technology demonstration program, we are reinventing the future of flight, bringing an advanced suite of revolutionary technologies to market that will take the next generation of single-aisle aircraft to a new level of fuel efficiency and reduced emissions,” John Slattery, President and CEO of GE Aviation is quoted in the company’s press release.

According to Slattery, the new engine is intended for narrow-body aircraft, thus replacing the CFM LEAP currently in use by the latest generation of mainline jets, such as Boeing 737 MAX, Airbus A320neo, and COMAC C919.

CFM International, a 50/50 joint venture of American GE Aviation and French Safran, was founded in the mid-70s. Since then it has become one of the world's most prolific manufacturers of aviation engines for narrow-body aircraft