Boeing keeps an “open mind” on RISE engine technology – Airways Magazine

DALLAS – Always looking to the future, Boeing keeps an “open mind” about future engine technologies. The remark made this week by the manufacturer relates to the RISE engine project, announced last year by CFM International, a collaboration between General Electric and Safran.

“Any tool that helps us improve environmental performance is worth looking into,” Mike Sinnett, Boeing’s vice president of product development, told reporters. “Today’s open rotor is something very different from what it was 20 years ago. There are things about this engine that are very interesting. And I wouldn’t say we don’t would ever put an open rotor on an airplane.

The RISE engine could reduce fuel consumption by up to 20% and could enter service by the 2030s, possibly as part of Boeing’s next design.

Reuters reports that the engine will contain hybrid-electric propulsion and can run on 100% sustainable fuel or hydrogen, a preferred energy source by Airbus for future concepts.

Project launched in June 2021

In June 2021, GE and Safran launched a technology development program aimed at creating a propulsion system that produces 20% fewer emissions: the CFM RISE program (Revolutionary Innovation for Sustainable Engines). The signed documents show that the two companies agree to work together until 2050 to “pave the way for more sustainable aviation in line with the industry’s commitment to halving CO emissions.2 emissions” that year.

“Together, through the RISE Technology Demonstration Program, we are reimagining the future of flight, bringing to market an advanced suite of game-changing technologies that will take the next generation of single-aisle aircraft to a new level of fuel efficiency and reductions,” said John Slattery, president and CEO of GE Aviation. “We fully embrace the imperative of sustainability. As we have always done in the past, we will secure the future. »

According to GE’s website, “The core of the program is advanced propulsive efficiency for the engine, including the development of an open fan architecture. This is a key component to dramatically improving fuel efficiency while delivering the same speed and cabin experience as today’s single-aisle aircraft. The program will also use hybrid electric capability to optimize engine efficiency while enabling the electrification of many aircraft systems.

The engineering team develops composite fan blades, heat-resistant metal alloys, ceramic matrix composites (CMCs), hybrid electric capability and additive manufacturing processes. GE says the RISE program includes more than 300 separate complete engine components, modules and versions. A demonstration engine is expected to begin testing at GE and Safran facilities around the middle of this decade and flight testing shortly thereafter.

No new Boeing soon

Boeing, however, is not expected to begin development of a new aircraft anytime soon, given its current certification and manufacturing issues and high level of debt.

According to Reuters, earlier this month, Boeing CEO Dave Calhoun said it would take “at least two years” before digital manufacturing tools were mature enough to support a new manufacturing program. plane that would help Boeing close a sales gap with Airbus.

“When that happens, we design the next plane,” Calhoun said. “Why should I rush? »

A CFM LEAP engine is seen on the assembly line. Photo: C.F.M.

About CFM

CFM started in 1974 as a joint venture between GE and Safran. This partnership was renewed in 2008 for the launch of the LEAP program to develop the engine used on the 737 MAX and certain Airbus A320neo aircraft.

Today, CFM is the world’s leading supplier of commercial aircraft engines, with more than 35,000 engines delivered to more than 600 operators, totaling more than one billion flight hours.

Featured Image: FMC

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