Maj. Rick Crist, a C-130J-30 pilot instructor, assigned to the 815th Airlift Squadron, Keesler Air Force Base, Miss., sets up a PRC-112G radio as part of a combat skills training refresher course on July 18. Much like text messaging, Major Crist can send and receive short messages on the radio to aid in the field training portion of his CST, simulating rescue scenarios. (U.S. Air Force Photo by Senior Airman Kimberly Erickson)