U.S. Air Force Thunderbird No. 1, Lt. Col. Christopher Hammond, second from left, poses in front of Cooper High School May 1, 2015, in Abilene, Texas. Hammond, a 1994 Cooper High School graduate, spent the day talking to students about his life growing up and his Air Force career. He and the Thunderbird team participated in the 2015 Dyess Big Country Airfest May 2-3. (U.S. Air Force photo by Staff Sgt. Joel Mease/Released)