North American XB-70 Valkyrie | |
|---|---|
| Country | USA |
| Role | Strategic bomber – Supersonic research aircraft |
| First flight | 21 September 1964 |
| Built | 2 |
The North American Aviation XB-70 Valkyrie was the prototype version of the planned B-70 nuclear-armed, deep-penetration strategic bomber for the United States Air Force Strategic Air Command. Designed in the late 1950s by North American Aviation, the six-engined Valkyrie was capable of cruising for thousands of miles at Mach 3+ while flying at 70,000 feet (21,000 m).
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