GE's F103 engine, a military version of the very popular CF6 commercial jet engine, helps militaries refuel other aircraft anywhere in the world.

The KC-10A Extender is an advanced aerial tanker and cargo aircraft designed to provide increased global mobility for U.S. armed forces. Although the KC-l0's primary mission is aerial refueling, it can combine the tasks of a tanker and transport aircraft by refueling fighters and simultaneously carrying the fighter support personnel and equipment on overseas deployments.

The KC-10's maiden flight took place on 12 July 1980. Ironically, the first aerial refueling occurred during testing in October 1980, with the receiver aircraft being a C-5 Galaxy (also powered by GE engines).

The KC-10's three F103 engines produce 52,500 pounds of thrust each enabling the aircraft to transport fuel to the receiving aircraft at a rate of 1,100 gallons (4,180 liters) per minute.