The experimental legacy of the iconic XB-70 Valkyrie, which made its first flight on Sept. 21, 1964. An article published on the U.S. Air Force website commemorates the 60th anniversary of the ...

The XB-70 Valkyrie is born North American returned with a proposal for a bomber that was designed from the ground up to fly the majority of its missions at Mach 3 and at 70,000 feet (though some ...

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, and now there's ...

It was the XB-70 Valkyrie, an experimental plane developed for the US Air Force. Its inaugural flight — 60 years ago in September 1964 — kicked off a golden era for supersonic aircraft.

In the early 1960s, the U.S. Air Force developed the XB-70, the largest, fastest bomber ever built. The ambitious airplane was eventually shot down not by enemy missiles, but advances in enemy air ...

Despite its technical triumphs and support from aviators, the XB-70’s operational future unraveled almost as quickly as it took flight. The North American XB-70 Valkyrie emerged from a United ...

The aircraft close up for the photo shoot. For some reason, possibly having to do with unusual wind patterns in the XB-70's wake, the F-104 (orange tail), piloted by NASA Chief Test Pilot Joe ...

This was the North American XB-70 Valkyrie. The XB-70 was a Mach 3 prototype that would have led to the B-70 bomber, creating the fastest strategic bomber in the world. It aimed to strike deep ...

A Total Failure: The XB-70 Valkyrie was an experimental U.S. nuclear bomber developed in the 1950s and 1960s as a potential replacement for the B-52. Designed to fly at Mach 3 speeds and altitudes ...

Thus, the early design documents for the plane that would eventually become the XB-70 called for a plane using nuclear power. That branch of research ultimately became a dead end, partly because ...

The XB-70 Valkyrie on display at the Air Force Museum was once again towed out of its display hangar temporarily for museum maintenance recently. The North American XB-70 Valkyrie, on display ...