Practice makes perfect
Senior Master Sgt. Ray Lewis, a refueling boom operator assigned to the Air Force Reserve 18th Air Refueling Squadron, 931st Air Refueling Group, McConnell Air Force Base, Kan., peers out of the boom pod of a KC-135 Stratotanker during an air refueling training mission June 27, 2013. The KC-135 was refueling a B-52 Stratofortress assigned to the 5th Bomb Wing, Minot Air Force Base, N.D. Air refueling training missions ensure that both the refueling and receiving aicrews maintain proficiency in air refueling operations, which allows the U.S. Air Force to extend its reach around the globe. (U.S. Air Force photo by Senior Airman Sierra Dopfel)