What is the North American XB-70A Valkyrie?

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Posted: April 4th, 2008
at 9:27pm by Koookiecrumbles


Categories: what is?

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  1. XB 70 was a supersonic bomber prototype of which 4 were built for testing, and up to 4 more were built as a launch platform for the Air Force Space-plane X-=20 Dyna Soar which preceded the Space Shuttle by more than 10 years, though we are not supposed to know about it (Shh,it’s a secret program – Don;t tell anyone about them)…

    Larry K

    4 Apr 08 at 11:50 pm

     


 

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