The North American XB-70 Valkyrie epitomized Cold War aerospace innovation. Designed to replace the B-52, the Valkyrie ...

Imagine a bomber so fast it could outrun any fighter jet, soaring at Mach 3 speeds across continents. The XB-70 Valkyrie was this dream made real, pushing engineering to new heights. But its path was ...

The XB-70 Valkyrie could cruise at Mach 3, riding its own shock wave to do so, and could hit altitudes of 70,000 feet. But the XB-70 Valkyrie never went into full-scale production ...

In a September 1965 test, a YF-12 successfully launched a quarter-kiloton atomic missile, from an altitude of 75,000 feet at ...

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 ...

The Rockwell B-1 is a supersonic variable-sweep wing heavy bomber serving in the fleet of the United States Air Force along ...

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The XB-70 Valkyrie, a Cold War-era strategic bomber prototype designed to replace the B-52, is now on display at the National ...