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Naval History and Heritage Command

Automatic Course Indicator

Photograph taken from a book published by the Submarine Defense Association
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Title: Automatic Course Indicator
Caption: Developed by Lindon W. Bates of the Submarine Defense Association, this device enabled ships to run indirect courses -- such as zizagging or the "sinuous" course -- with much greater precision.
Original Location: Lindell T. Bates, "Sinuous Courses and the Automatic Course Indicator for Naval Warfare" New York: The Submarine Defense Association, 1918: 42
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