X-47B "stealth drone" hoped to be first carrier-borne unmanned aircraft

U.S. Navy 'stealth drone' takes to the sea for tests: The autonomous X-47B is hoped to be first carrier-borne unmanned aircraftThe drone will be the first to be piloted entirely by artificial intelligenceTests hope to prove it can take off and land from an aircraft carrierIt has a claimed range of 2,000 miles and flight time of six hours | UPDATED: 18:50 GMT, 29 November 2012 A stealth drone set to be the world's first unmanned, robot aircraft piloted by artificial intelligence rather than a remote human operator has taken to the sea for tests.