U.S. Air Force Staff Sgt. Cally Hatrick prepares to load an F-16 Fighting Falcon aircraft during the 4th quarter weapons loading competition on Luke Air Force Base, Ariz., Dec 18, 2015. Hatrick is a weapons load crew member assigned to the 310st Aircraft Maintenance Unit. It’s the first time the F-35 Lightning ll was used in the competition against the F-16 at Luke. Three man crews from the 61st AMU, 309th AMU, 310th AMU, and the 425th AMU went head to head to earn this quarters win. U.S. Air Force photo by Senior Airman Grace Lee