Flight deck crewmen prepare to move a Navy X-47B Unmanned Combat Air System Flight deck crewmen prepare to move a Navy X-47B Unmanned Combat Air System demonstrator aircraft from an elevator aboard the aircraft carrier USS George H.W. Bush (CVN 77) in Norfolk, Va., on May 6, 2013. The X-47B is being readied for its first catapult launch from an aircraft carrier. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 565469-L-ZHQ84-876.jpg Photo Gallery