The North American XB-70 Valkyrie, a Cold War-era bomber, was a technological marvel designed to fly at Mach 3 and at 70,000 feet, circumventing Soviet air defenses through speed and altitude.

Key Points and Summary - The North American XB-70 Valkyrie was a "technical marvel" of the 1950s—a Mach 3, 70,000-foot nuclear bomber designed to replace the B-52. -It used a "revolutionary" principle ...

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 commemorates the 60th anniversary of the first ...

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 ...

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 ceiling of ...