Okie refueling
KC-135R aerial refueling is possible due to the efforts of boom operators who lay on their stomach while “flying the boom”. Here, Senior Master Sgt. Darby Perrin, 465th Air Refueling Squadron operates the boom while refueling a B-52 Stratofortress at 27, 000 feet. (U.S. Air Force photo/Maj. Jon Quinlan)