PALMDALE - Heralded as the future of naval aviation, the X-47B unmanned combat aircraft for the Navy was unveiled Tuesday before an enthusiastic crowd at Northrop Grumman Corp.'s Palmdale facility. With the Stars and Stripes as a backdrop and the strains of "Anchors Away" echoing through the hangar, the men and women who have contributed to its development greeted the cutting-edge aircraft during the afternoon ceremony. "It stands out as being a very good-looking aircraft," said Scott Winship, Navy Unmanned Combat Air System program manager for Northrop Grumman. A first for the Navy, the X-47B is intended to demonstrate the...