KC-135 Stratotanker
A KC-135 Stratotanker prepares to depart Fairchild Air Force Base, Washington, Oct. 30, 2016. The KC-135 provides the core aerial refueling capability for the Air Force, with four turbo fans and mounted under 35-degree wings, the KC-135 is capable of take-offs at gross weights of up to 322,5000 pounds. (U.S. Air Force photo/ Senior Airman Mackenzie Richardson)