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Hitler's Lost Sub
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The Turtle as drawn in 1875. Despite an effort to gather reliable information, the artist made several significant errors. The drawing shows ballast tanks, though the Turtle had none. It depicts an Archimedes screw (helical) for locomotion instead of a propeller like the "arms of a windmill" or a "pair of oars" described by Bushnell and others. Finally—and this we may forgive—it displays the operator wearing a rather foppish late-19th-century outfit.

The Turtle

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