NAVAL AIR SYSTEMS COMMAND, Patuxent River, Md. -- An X-47B unmanned aircraft departed NAS Patuxent River, Md. Jan.26 for cross country trip back to Northrop Grumman's manufacturing facility in Palmdale, Calif.  As part of the Unmanned Carrier Air System-Demonstration (UCAS-D) program, the X-47B demonstrated technologies to support the Navy's unmanned carrier aviation efforts. The second X-47B aircraft will make the same trip next month. Northrop Grumman plans to use both aircraft as test beds for future development programs. (U.S. Navy photo)