Boeing unveiled its hydrogen-powered Phantom Eye remotely piloted aircraft during a ceremony at the company's facility in St. Louis, July 12, 2010. The aircraft is designed to remain aloft at 65,000 feet for up to four days. The company plans to ship Phantom Eye, shown here, to NASA’s Dryden Flight Research Center at Edwards AFB, Calif., to begin ground and taxi tests in preparation for its first flight in early 2011. Phantom Eye has a 150-foot wingspan. It is built to cruise at about 150 knots and carry a payload up to 450 pounds.
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