Engine Makers at a Crossroads: CFM Pushes Open-Fan Tech as Pratt & Whitney Grapples with GTF Durability
CFM International is advancing its Revolutionary Innovation for Sustainable Engines (RISE) program, with the first open-fan demonstrator engine set for testing in the mid-2020s. This technology is crucial for achieving a targeted 20% improvement in fuel efficiency for future aircraft. Concurrently, Pratt & Whitney continues to address significant durability issues with its Geared Turbofan (GTF) engines, particularly in the hot section. These problems have led to widespread operational disruptions for airlines, prompting urgent upgrades and fixes from the manufacturer. In the defense sector, the U.S. Air Force has decided not to fund the integration of GE Aerospace's advanced XA100 adaptive engine for the F-35 fighter, a major blow to the program.
Official Source: https://aviationweek.com/aerospace/aircraft-propulsion/first-take-march-9-2026