The XA103 is an adaptive cycle engine design proposed by Pratt & Whitney for the U.S. Air Force's next generation fighter aircraft, competing against General Electric's XA102.

Just a day earlier, on Feb. 19, 2025, General Electric Aerospace announced the successful completion of the Detailed Design Review (DDR) for its XA102 adaptive cycle engine.

Chinese Journal of Aeronautics (2021). [4] Robust design of an adaptive cycle engine performance under component performance uncertainty. Aerospace Science and Technology (2021).

Both GE Aerospace and Pratt & Whitney developed adaptive-cycle engine prototypes for the Lockheed Martin F-35 stealth fighter, with those designs serving a starting point for the successor XA102 ...

Ever since 2016, the U.S. Air Force (USAF) has been looking for a new engine to slap into its fifth-generation F-35 fighter plane. The engine didn’t get to be detailed until 2019, and testing ...

The XA103 is an adaptive cycle engine design proposed by Pratt & Whitney for the U.S. Air Force’s next generation fighter aircraft, competing against General Electric’s XA102.