February 4th, 1969: the XB-70 Valkyrie bomber takes its last flight. Watch this video to remember the occasion or to learn more about this iconic supersonic bomber that still looks futuristic today.
The North American XB-70 Valkyrie emerged from a United States Air Force requirement in the mid-1950s for a bomber capable of delivering nuclear payloads at speeds and altitudes beyond the reach ...
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 ...