NASA's Dryden Flight Research Center and The Boeing Co. are expanding the flight envelope for the X-48B blended wing body research aircraft.Flight tests with the 500-pound, remotely piloted test vehicle are now in a second phase involving higher speed regimes.
The 21-foot wing span test aircraft is flying without its slats deployed. Slats are flight control surfaces on the leading edges of wings which, when extended, allow an aircraft to take off, fly and land at slower speeds.
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