Originally conceived as a supersonic long-range strategic nuclear heavy bomber, the B-1 has evolved into a very effective multi-role conventional warplane.

A product of the Cold War, the North American Rockwell B-1 bomber was conceived as a strategic nuclear deterrent, with a greater payload, range, survivability probability, and penetration capability than the mainstay of the United States Air Force (USAF) Strategic Air Command (SAC), the Boeing B-52 . Contents Originally conceived as a supersonic long-range strategic nuclear heavy bomber, the B-1 has evolved into a very effective multi-role conventional warplane. Development The B-1A Resurrected by Reagan: The B-1B Going Conventional

Initially a Mach 2.2 design in the B-1A, and subsequently cancelled, the bomber was

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