Airman 1st Class Ashley Hill conducts preload checks on an AIM-9 air-to-air missile. U.S. Air Force Airman 1st Class Ashley Hill, an aircraft armament systems apprentice with the 57th Aircraft Maintenance Squadron, conducts preload checks on an AIM-9 air-to-air missile during a weapons load competition at Nellis Air Force Base, Nev., on Jan. 7, 2011. Officials evaluated airmen on checklist use, safety and overall speed. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 961099-O-XPL63-387.jpg Photo Gallery