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NASA To Fly Super-Quiet Supersonic Jets Over U.S. Cities 'Within Three Years'

NASA To Fly Super-Quiet Supersonic Jets Over U.S. Cities 'Within Three Years'

NASA has officially committed to the first flight of its supersonic test plane in just three years. By 2021 we can expect to see (but not hear) the X-59, a test aircraft for NASA's Quiet Supersonic Technology

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