To this day, the fastest bomber on the face of the Earth is a North American design, even though it never actually took to ...

The XB-70 Valkyrie was a supersonic bomber capable of riding its own shockwaves and was the largest airplane of its time. Despite its engineering marvel, it never entered production for reasons ...

The futuristic XB-70A Valkyrie was capable of flying at Mach 3 and 22 kilometers altitude to deliver a nuclear strike on Moscow and return within 90 minutes, but the entire project met its tragic end ...

Though never mass-produced, the XB-70 provided critical data for future high-speed, high-altitude flight research for NASA and the U.S. Air Force.

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 ...

It took just three seconds last June for the U.S. to lose two ace test pilots and more than $700 million worth of aircraft when the Air Force's XB-70 Valkyrie, a supersonic flying laboratory, ...

From the first of the 95 flights made by the Air Force’s two XB-70 Valkyrie bombers since 1964, the mighty, 2,000-m.p.h. experimental craft has been gremlin plagued. On Valkyrie 1’s maiden ...

Five years before Concorde’s first flight, another majestic supersonic aircraft took to the skies — and almost became the inspiration for an even faster passenger plane.

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.