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XB-70 Valkyrie: The Greatest Warplane America Never Adopted
Despite its technical triumphs and support from aviators, the XB-70’s operational future unraveled almost as quickly as it ...
SlashGear1y
These Are The 12 Fastest Fighter Jets In The World, Ranked
A unique bomber-style fighter jet, the North American XB-70 Valkyrie has a top speed of around 2,050 mph, which is about Mach 3, depending on the altitude. This experimental fighter never ...