What You Need to Know: The North American XB-70 Valkyrie epitomized Cold War aerospace innovation. Designed to replace the B-52, the Valkyrie boasted speeds exceeding Mach 3 and an altitude ...

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 ...

It was the "largest and fastest bomber" that the US ever built, according to The National Interest. The XB-70 Valkyrie could cruise at Mach 3, riding its own shock wave to do so, and could hit ...

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.

The XB-70 was positioned as a launch vehicle for the North American X-15 spaceplane, a manned, rocket-powered aircraft that flew at Mach 6.7. Launched from an XB-70 mothership at Mach 3, ...

The XB-70 shed a part of its leading edge when the aircraft returned to flight, and the first prototype was then limited to just Mach 2.5. The second aircraft was cleared to fly at Mach 3.

The first NASA XB-70 flight occurred on April 25, 1967, the last one was on Feb. 4, 1969 when the aircraft made a subsonic structural dynamics test and ferry flight from Edwards AFB to Wright ...

XB-70 pilot Al White was able to eject, but he sustained serious injuries. The XB-70’s co-pilot Carl Cross and NASA’s Chief Test Pilot Joe Walker (F-104 pilot) were both killed.

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 ...

Unfortunately, the XB-70 story doesn't have a happy ending. In 1966, during a mid-air photo session following a test flight, an F-104 fighter clipped the right wing of XB-70 #2.

On a chilly, drizzling morning, a tractor pushes the world's only remaining 1960s-vintage XB-70 experimental supersonic bomber tail-first into its new home: The nearly finished fourth wing of the ...