Airmen from the 22nd Aircraft Maintenance Squadron hydraulics shop inspect the boom of a KC-135 Stratotanker, Aug. 13, 2015, at McConnell Air Force Base, Kan. The Airmen were performing an hourly post-flight inspection on the aircraft, which is one of several dozen KC-135s assigned to McConnell, the Air Force’s premiere aerial refueling hub. (U.S. Air Force photo by Senior Airman Victor J. Caputo)