Rolls-Royce has been contracted by the U.S. Air Force to supply spare engines and provide propulsion system sustainment for their C-130J aircraft.

Under the $71 million spare engine contract, the company will provide 24 AE2100DE commercial engines for the airlifters. The order also includes foreign military sales to the government of Saudi Arabia.

Rolls-Royce received an additional $76 million contract for C-130J propulsion system sustainment, which tasks the company with providing logistics and management support in addition to engineering services, spares, and technical data support for the aircraft's propulsion system.

Work on both contracts will be performed in Indianapolis, Ind., and is expected to be complete by December 2016 and January 2017, respectively.

The C-130J Super Hercules is an airlifter built by Lockheed Martin. The aircraft is designed for transporting troops, cargo, and supporting equipment through harsh environments.

In addition to combat missions, the aircraft is designed for aerial refueling, firefighting, search-and-rescue and humanitarian missions.