GE Aviation and Pratt & Whitney have each received U.S. Air Force contracts to develop the service's next generation of propulsion systems.

GE Aviation received a $919 million contract, with a total value, including a priced option, of over $1 billion. Work will be performed at Cincinnati, Ohio, and Arnold Engineering and Development Complex, Tenn., with an expected completion date of Sep. 30, 2021.

Pratt & Whitney was awarded an $873 million contract, with a total value, including a priced option, of over $1 billion. Work will be performed at Hartford, Conn., West Palm Beach, Fla., Arnold Engineering and Development Complex, Tenn., with an expected completion date of Sep. 30, 2021.

Each cost-plus-incentive fee contract is for designing, fabricating, integrating and testing multiple complete, flight-weight centerline, 45,000-pound thrust turbofan adaptive engines.

The Adaptive Engine Transition Program is working to mature fuel-efficient adaptive engine component technologies, while reducing associated risk in preparation for next-generation propulsion system development for several combat aircraft applications.

The Air Force Life Cycle Management Center is the contracting activity.