In the middle years of the Cold War, the US government encouraged the development of supersonic airliners through the National Supersonic Transport program. NASA Flight Research Center, now Armstrong ...

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 ...

The maiden flight of the XB-70A ended with tire blowout and fire. With a planned cruise speed of Mach 3 and operational altitude of 70,000 feet, the B-70 Valkyrie was slated to be the ultimate ...

At Mach 3, you travel about 3,000 feet per second. That's over half a mile (or 10 football fields). And at 70,000 feet, you're twice as high as the average airliner. Only a handful of aircraft have ...

During the Cold War era from the late 1940s to the early 1990s, the skies above Southern California’s Mojave Desert served as a testbed for the newest, biggest, fastest and deadliest military aircraft ...

The XB-70 Valkyrie was not just built to fly fast. It was designed to use compression lift, effectively riding the shockwave it created at high speed, with folding wingtips helping trap that pressure ...

The only remaining XB-70 Valkyrie superbomber is on display at the National Museum of the U.S. Air Force in Dayton, Ohio. The Cold War-era prototype variant of the planned B-70 nuclear-armed strategic ...