Airman Calvin Daniels, 28th Maintenance Squadron aircrew egress system apprentice, installs a survival kit in an Advance Concept Ejection Seat II during training at Ellsworth Air Force Base, S.D., Jan. 23, 2012. The survival kit supplies aircrew members with necessary items to help sustain them until rescuers arrive. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)