CINCINNATI – GE Aerospace (NYSE:GE) has been awarded a contract from the U.S. Air Force to complete the preliminary design review (PDR) for its new GE426 engine in support of the Air Force’s medium thrust class Autonomous Collaborative Platform (ACP) effort.
The GE426 is a next-generation propulsion system purpose-built for the medium-thrust-class ACP mission, delivering the performance, affordability, and manufacturability required for uncrewed, autonomous combat aircraft.
This award builds on GE Aerospace’s previously demonstrated capability to rapidly design, manufacture, and test small engines in support of the Air Force’s opportunities. In August 2025, GE Aerospace successfully completed the concept design review of the GE426, validating the engine’s architecture and advancing its design.
Under this contract, GE Aerospace will mature the GE426 prototype engine through preliminary design review and further refine system capability, producibility, and cost while ensuring alignment with Air Force requirements for the medium-thrust-class ACP fleet.
“We’ve proven we can rapidly move from concept to engine demonstration with the GEK800, and our focus now is on applying that process to the GE426 to ensure it provides the performance, affordability, and readiness the warfighter needs,” said Steve “Doogie” Russell, Vice President and General Manager of Edison Works at GE Aerospace.