Copy of the blueprints for ‘Little Boy,’ the atomic bomb dropped over Hiroshima, 24 x 18. Van Kirk adds handwritten notations explaining the main different parts of this atomic bomb. In pencil he draws arrows labeling the "Neutron Source," the "Steel Tamper," the "Gunpowder," the "Explosion Device," and the "Highly Sensitive Radio Antennae." He points out the "Uranium 235 'Bullet' Fired into Target to Create Critical Mass" and the "Uranium 235 Hollowed out Target." On the margin he explains in blue ink: "This is a blue print of our Hiroshima Atomic bomb 'Little Boy.’ It was the only uranium bomb ever made & was designed as a gun type bomb with a bullet of Uranium 235 fired into a target of Uranium 235 to create a critical mass and thereby cause an atomic explosion.” Underneath his explanation, he signs, "Theodore J. 'Dutch' Van Kirk, Navigator—Enola Gay, 6 Aug 1945.” Rolled and in fine condition.
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