Allan Rockwell McCann was in charge of the development of a submarine rescue chamber, which bears his name, "The McCann Submarine Rescue Chamber". Additionally he was assigned as Liaison Officer / Engineer when the submarine was converted for use in the under ice attempt to circumnavigate the Arctic Ice cap and voyage to the North Pole. Modifications to the submarine were extensive, and contained innovations of a telescoping conning tower, an ice drill, an incorporated diving bell and an Air Lock, designed by Simon Lake. The submarine was designated "Nautilus" and leased for one dollar to Lake and Danenhower, Inc., of Bridgeport, Connecticut,
North Pole the third pair of submarines to surface together at the North Pole. In March 1990, "Gurnard" deployed to the Arctic region during exercise Ice Ex '90 and completed only the fourth winter submerged transit of the Bering and Seas. "Gurnard" surfaced at the North Pole on April 18, in the company of the USS "Seahorse" (SSN-669). On 6 May 1986 USS "Archerfish" (SSN 678), USS "Ray" (SSN 653) and USS "Hawkbill" (SSN-666) surfaced at the North Pole, the first tri-submarine surfacing at the North Pole. On 21 April 1987 Shinji Kazama of Japan became the first person to reach the