The first prototype flew on November 11, 1956. On December 30, 1956 B-58 became the first bomber that reached speed of sound. About 100 built. Replaced by FB-111.

Engine: 4 x General Electric J79-GE-5A turbo-jets, 69.3kN with afterburner
Armament: 1 x 20mm cannon, nuclear bombs inside the container under the fuselage

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