TEXT X-47B unmanned combat air system (UCAS) demonstrator - the US Navy's first tail-less, stealthy unmanned aircraft, was unveiled at Northrop Grumman's Palmdale, Calif., site on Dec.1
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TEXT X-47B unmanned combat air system (UCAS) demonstrator - the US Navy's first tail-less, stealthy unmanned aircraft, was unveiled at Northrop Grumman's Palmdale, Calif., site on Dec.1
John McCormack · December 17, 2008
