U.S. Air Force Airman 1st Class Vincen Ramos and Airman Tylan Bolden listen to instructor Tech Sgt. Jacob Trevino 363rd Training Squadron, Remote Piloted Aircraft Armament course as he explains the functions and use of the Ruggedized Aircraft Maintenance Test Station for the MQ-9 Drone aircraft on June 26, 2013 at Sheppard Air Force Base, Texas. (U.S. Air Force photo by Frank Carter/Released)