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  NASA F-15 Quiet Spike flight test - YouTube

  https://www.youtube.com/watch?v=EaaY_BdLHPY

  Video of NASA's F-15 modified to flight test Gulfstream's patented Quiet Spike telescoping nose probe, designed to reduce the sonic boom of a supersonic busi...

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  Gulfstream's next generation private plane is getting fighter jet tech - Business Insider Deutschland

  http://www.businessinsider.com/gulfstream-g500-jet-active-sidestick-bae-2016-12

  The Gulfstream G500 will be the first non-military aircraft to feature active side stick technology.

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