National Security Journal on MSN

The Mach 3.08 XB-70 Valkyrie Bomber Has a Message for the U.S. Military

The XB-70 Valkyrie was born from a simple Cold War idea: fly so high and fast that nothing could touch you. North American’s ...
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XB-70 Valkyrie: Mach 3 Nuclear Bomber

As part of a plan to build a strategic bomber for deep penetration and nuclear bombing runs during the Cold War, North American Aviation created a stunningly futuristic prototype for its time: the ...