Born in an era of nuclear brinkmanship and Cold War paranoia, the XB-70 Valkyrie was engineered to outrun everything. Flying ...

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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.

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.

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.

The first XB-70 Valkyrie built, the XB-70A, had handling at speeds greater than Mach 2.5, and only got above Mach 3 once. So a second one was built, the XB-70B, with the wings adjusted just 5 ...

By: Brandon J. Weichert Summary: The Air Force’s XB-70 “Valkyrie” supersonic bomber was designed to replace the B-52 Stratofortress with its advanced speed, capable of reaching Mach 3.

The XB-70 was designed to be larger and faster than the B-52. It was 196 feet long, 31 feet tall at the tail, with a 105-foot wingspan, and powered by six turbojet engines.

The massive XB-70 Valkyrie is the largest and heaviest airplane ever to fly at Mach 3. The North American XB-70 Valkyrie was the most ambitious super-bomber project of the Cold War. The massive ...