US AIR FORCE / SCIENCE PHOTO LIBRARY US AIR FORCE / SCIENCE PHOTO LIBRARY
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Unmanned combat air vehicle. An X-47B unmanned combat air system demonstrator (UCAS-D) completing its first flight. This aircraft is designed to operate from an aircraft carrier. It is 11.6 metres long with a wingspan of nearly 19 metres, which reduces to 9.5 metres when the wings are folded. Sea trials of the aircraft started in 2012. Photographed at Edwards Air Force Base, California, USA, on 4th February 2011.
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