KC-135 Stratotanker 

The Boeing KC-135 Stratotanker is an American military aerial refueling tanker aircraft that was developed alongside the Boeing 707 airliner. The KC-135 was the United States Air Force's first jet-powered refueling tanker and was initially tasked with refueling strategic bombers but was later used in Operation Desert Storm to extend the range and endurance of US tactical fighters.