Airman Tanner Edleman, 361st Training Squadron aircrew flight equipment apprentice course student learns about the basic components of the ACES II survival kit at Sheppard Air Force Base, Texas. In this course, students learn how to assemble, inspect and disassemble the ACES II survival kit to ensure that it is in perfect working order. (U.S. Air Force photo/Liz H. Colunga)