North American XB-70. High altitude penetration bomber. Mach 3 at 70,000 feet!
Same performance as the SR-71 Blackbird but twice the size and three times the weight.
Last attempt to build a bomber that could out-fly Russian air defenses. From then on it was
"how low can you go?".
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Only two prototypes built. One crashed, one lives at the Air Force Museum in Dayton.
Ultimate futuristic technology. Still using what we learned from it today.
Very pretty airplane.
