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 ...

The XB-70 Valkyrie was developed as a high-altitude Mach 3 strategic bomber intended to replace the B-52, featuring six J93 engines, extensive use of titanium and honeycomb panels, a retractable ...

Here’s What You Need to Remember: Seeing the writing on the wall, the Air Force canceled the proposed B-70 line in 1961, three years before the XB-70’s first flight. During the 1950s, as the Cold War ...

Despite its technical triumphs and support from aviators, the XB-70’s operational future unraveled almost as quickly as it took flight. What You Need to Know: The North American XB-70 Valkyrie ...

The XB-70 Valkyrie was designed to fly at Mach 3 and altitudes no other bomber could reach. Intended as a strategic deterrent, it was ultimately sidelined by changing defense strategies and the rise ...