The U.S. Navy's X-47B Unmanned Combat Air System demonstrator flies over Edwards Air Force Base, Calif., during a routine test mission. The UCAS-D program conducted the airworthiness test phase for the X-47B at Edwards, which came to a successful conclusion May 15, 2012, after more than two years of testing. Team Edwards will continue to support the program, as the 412th Maintenance Group will send personnel to Naval Air Station Patuxent River, Md., to continue supporting the aircraft carrier suitability test phase. (U.S. Air Force photo/Chris Neill)