Events Farnborough International Airshow Aircraft Manufacturing (OEMs) Sustainability & Climate Initiatives Boeing 737

CFM’s RISE open-fan program logs new milestones and moves to full-size hardware testing with a target 20% jet-fuel cut

CFM International says its Revolutionary Innovation for Sustainable Engines (RISE) open-fan demonstrator is building momentum, announcing additional design and test milestones and readiness to begin full-size hardware testing for its casing-less configuration ahead of the Farnborough Airshow. The company also reiterated its fuel-burn reduction target of 20% versus today’s baseline.

Discovered 2026-07-18T22:21:02.934167-07:00 | 2026-07-18T22:21:02.934167-07:00

Briefing

What Hype is tracking

CFM’s RISE update combines technical progress (new design and test milestones, plus commencement of full-size hardware testing) with a quantified performance target—20% jet-fuel burn reduction—critical for how OEMs will underwrite next-decade engine technology choices.
The cluster links open-fan development momentum with GE’s CFM business context via the GEnx-1B reaching 50 million flight hours in just over 14 years, supporting claims of manufacturing and operational learning transfer across widebody powerplants.
With progress showcased in the run-up to Farnborough, the announcements are likely to influence how airline and investor expectations form around near-term validation and risk reduction for advanced, lower-emissions engine architectures.

Reported By

GE Aerospace interestingengineering.com AeroTime AINonline Aviation Week aerotelegraph.com