June 1 (UPI) -- The U.S. Navy is exercising an option in its contract with Rolls-Royce, awarding the company $28.3 million for engines for the V-22 Osprey tiltrotor aircraft.
The AE1107C engines weigh 971 pounds each and deliver 7,000 shaft horsepower. Rolls-Royce has produced more than 860 of the engines.
Work on the engines is expected to take place in Indianapolis, Ind., and will finish in May 2019.
The Defense Department is paying for the contract modification using fiscal 2017 aircraft procurement funds from the Air Force and fiscal 2018 aircraft procurement funds from the Navy. None of the money will expire by the end of the current fiscal year.
Made by Bell-Boeing, the V-22 Osprey is a tiltrotor aircraft that can take off and land vertically.