An aircrew from the 300th Airlift Squadron sport their flight suit morale tabs in front of their C-17 Globemaster III before performing the squadron's first flight using their newly approved call sign Primus. Bronze, Prime and Turtle – these are the new call signs now used by Reserve aircrews assigned to the 315th Airlift Wing at Joint Base Charleston, South Carolina. (U.S. Air Force photo by Michael Dukes)