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XB-70 Valkyrie
		Video Details 7 Hit Votes Views: 2,021 Comments: 5 Favorited: 6   Add to Favorites  Report Content  Blog Video  Add to Channels  Suggest to Friends Description:  A 1960s coldwar supersonic strategic nuclear bomber, and holder of the record for the largest Experimental plane. It could fly at Mach 3.08 and achieve   more...an altitude of 74,000 ft using it's 6 engines. When using the experimental fuel ethyl borane, one engine alone made more noise than any air-breathing engine in history. Development of the two prototypes was to cost around $1,500M USD, making them the most expensive two aircraft built to that date.  less Added:  Feb 3, 07   By: positron Subscribers:  33 Tags:  xb70   bomber   valkyrie   x-plane   nuclear   atomic   Category:  Science & Technology URL:  Embed:     Options   Add thumbnail at the end of your video   Enable Community Links on your player     Enable autoplay on your video Width:  New Code:

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