170622-N-N2201-119 NEWPORT NEWS, Va. (June 22, 2017) A crane moves the lower stern into place on the nuclear-powered aircraft carrier USS John F. Kennedy (CVN 79) at Huntington Ingalls Shipbuilding in Newport News, Va. The second Gerald R. Ford-class aircraft carrier is now 50 percent structurally complete. (U.S. Navy photo/Released)