These later O-boats, O-11 through O-16, were designed by Lake Torpedo Boat to different specifications than the earlier Electric Boat designs. They performed poorly as compared to the Electric Boat units, and are sometimes considered a separate class. O-12 was launched on 29 September 1917, sponsored by Mrs. Homer S. Cummings, and commissioned on 18 October 1918 with Lieutenant Commander J.E. Austin in command.
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