NASA proposes X-plane revival with supersonic, subsonic designs [feedly]

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NASA proposes X-plane revival with supersonic, subsonic designs
// Flight Global HEADLINES

NASA plans a return to a decades-old tradition of developing and flying experimental aircraft projects, or X-planes , in order to achieve new breakthroughs in supersonic and subsonic aeronautics research under the Fiscal 2017 budget proposal submitted to Congress on 9 February.
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