Tech. Sgt. Joshua Krape, 4th Operations Support Squadron survival, evasion, resistance and escape specialist, waits in a raft after simulating a plane crash during exercise Razor Talon, Dec. 15, 2017, in Thorofare Bay, North Carolina. To alert the aircraft in the area, Krape had a signal mirror and sea dye marker ready to use. (U.S. Air Force photo by Airman 1st Class Kenneth Boyton)