RAPTOR REFUELING Air Force Airman 1st Class Ryan Kemp refuels an F-22 Raptor aircraft while aboard a KC-135 Stratotanker aircraft over the Nevada Test and Training Range during Red Flag 14-1 on Nellis Air Force Base, Nev., Jan. 29, 2014. Kemp is a boom operator assigned to the 92nd Air Refueling Squadron. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 863389-F-VWS77-447.jpg Photo Gallery