B-1 Lancer is a four-engine, variable-sweep wing strategic bomber used by the United States Air Force. First envisioned in the 1960s as a supersonic bomber with sufficient range and payload to replace the Boeing B-52 Stratofortress, it developed primarily into a low-level penetrator with long range and supersonic speed capability.
The B-1 Lancer was initially a USAF
accepted design of 1970 as produced by the North American Rockwell
firm. The first operational prototype, in the form of the B-1A, was
delivered to the USAF in 1974 for developmental purposes. Four
prototypes would be made utilizing the B-1A designation. With the
arrival of the Carter Administration in 1977, the B-1 program was
cancelled for budgetary reasons. As such, the Lancer was left to wallow
though some limited development and testing continued nonetheless.
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