User talk:Wouldyoulikeacookie
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Sukhoi T-4 and XB-70 Valkyrie[edit]
Just a little Entry into my early days Given that the T-4 first flew in the 70s and the XB-70 in the early 60s, barring time travel I really doubt that North American incorporated Soviet concepts. Do you have a source for this claim? ericg ✈ 16:28, 13 April 2007 (UTC)