Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. USS Unicorn (SS-436), a World war II Tench-class submarine, was the second submarine of the United States Navy to be given that name for the narwhal, an Arctic marine cetacean with a single tusk suggesting the horn of a unicorn and sometimes called the "sea unicorn." Like the first USS Unicorn (SS-429), she was not completed. Unicorn's keel was laid down on 25 April 1945 by the Electric Boat Company of Groton, Connecticut. The contract to build her was cancelled on 7 January 1946; however, it was reinstated on 26 February 1946 for "completion of specific items," and she was launched on 1 August 1946 sponsored by Mrs. William A. Rowan, and accepted by the Navy on 3 September 1946.
