As the CFM RISE (Revolutionary Innovation for Sustainable Engines) program progresses toward its inaugural technology demonstrator, program partners are confident that the innovative open-fan design is achieving milestones set out at the beginning of the decade. However, while the experimental architecture is on track to deliver fuel-efficiency gains of at least 20%, this target is also being augmented by a more prominent focus on durability.
“If there’s anything we’ve learned over the last years, it’s that durability matters as much as, if not more than, fuel efficiency,” GE Aerospace v-p for future of flight Arjan Hegeman explained during a recent media briefing. The RISE initiative—first unveiled in 2021 by partners GE and Safran—initially prioritized unlocking fuel-burn benefits. Although Hegeman acknowledged that the industry will need to make ultimate trade-offs between durability and performance expectations, he is nevertheless confident that RISE can deliver “revolutionary improvements in both.”
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