Learn more about Phantom Eye's taxi tests at http://www.boeing.com/Features/2013/02/bds_phantomeye_taxi_02_07_13.html Boeing's Phantom Eye--the liquid hydrogen-powered high altitude long endurance unmanned aircraft system--completed its latest series of taxi tests in preparation for its return to flight. For more on Phantom Eye, check out http://www.boeing.com/bds/phantom_works/phantom_eye.html
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