A key technology milestone has been reached in the development of the future Boeing F-47 program as GE Aerospace advances its next-generation adaptive engine technology.
GE’s XA102 engine successfully cleared the Assembly Readiness Review on May 11, 2026, confirming that its design, manufacturing process, and supply chain are prepared for building a full-scale prototype.
The XA102 is being developed as a competitor for the F-47 engine program, but GE has not yet been selected as the final engine supplier. It is competing against **Pratt & Whitney’s XA103 engine, which also passed a similar review earlier.
The biggest feature of these engines is adaptive-cycle technology. Unlike traditional fighter engines designed mainly for either maximum power or fuel efficiency, adaptive engines can change performance modes during flight — providing higher thrust when needed and improved efficiency during longer missions.
The technology could offer future fighters greater range, improved cooling for advanced sensors and weapons, and a reduced infrared signature. Industry estimates suggest these engines could deliver around 35,000 to 40,000 pounds of thrust.
Boeing received the F-47 contract in March 2025 to replace the Lockheed Martin F-22 Raptor. Flight testing is expected later this decade, with early aircraft likely using interim engines before the new adaptive powerplants enter service.