Metter, Georgia-native Airman 1st Class Tony Mainer, a 364th Training Squadron cable and antenna systems apprentice course student, hangs upside down as another Airman rappels down a 105-foot communications tower as part of orientation training at Sheppard Air Force Base, Texas, Oct. 23, 2018. Airmen must learn how to ascend and descend the tower to get accustomed to working in elevated positions in different conditions. (U.S. Air Force photo by John Ingle)