At the height of the Cold War, the United States came up with the ultimate strategic bomber. This was the North American XB-70 Valkyrie. The XB-70 was a Mach 3 prototype that would have led to the ...

Born from Cold War ambition and built to outrun enemy missiles at three times the speed of sound, the XB-70 Valkyrie was America’s most audacious bomber project. Sleek, powerful, and decades ahead of ...