The North American XB-70 Valkyrie was a “technical marvel” of the 1950s—a Mach 3, 70,000-foot nuclear bomber designed to ...

The North American XB-70 Valkyrie embodied a once-dominant creed: outrun defenses at Mach 3 and 70,000 feet. -The prototype ...

Despite its technical triumphs and support from aviators, the XB-70’s operational future unraveled almost as quickly as it took flight. What You Need to Know: The North American XB-70 Valkyrie ...

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 ...