USS Sea Dog

History
United States
Builder	Portsmouth Naval Shipyard, Kittery, Maine
Laid down	1 November 1943
Launched	28 March 1944
Commissioned	3 June 1944
Decommissioned	27 June 1956
Stricken	2 December 1968
Fate	Sold for scrap, 18 May 1973
General characteristics
Class & type	Balao-class diesel-electric submarine
Displacement	1,526 long tons (1,550 t) surfaced; 2,391 long tons (2,429 t) submerged;
Length	311 ft 6 in (94.95 m)
Beam	27 ft 3 in (8.31 m)
Draft	16 ft 10 in (5.13 m) maximum
Propulsion	4 × Fairbanks-Morse Model 38D8-⅛ 10-cylinder opposed piston diesel engines driving electrical generators; 2 × 126-cell Sargo batteries; 4 × high-speed Elliott electric motors with reduction gears; two propellers ; 5,400 shp (4.0 MW) surfaced; 2,740 shp (2.0 MW) submerged;
Speed	20.25 knots (37.50 km/h) surfaced; 8.75 knots (16.21 km/h) submerged;
Range	11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)
Endurance	48 hours at 2 knots (3.7 km/h) submerged; 75 days on patrol;
Test depth	400 feet (120 m)
Complement	10 officers, 70–71 enlisted
Armament	10 × 21-inch (533 mm) torpedo tubes; 6 forward, 4 aft; 24 torpedoes; 1 × 5-inch (127 mm) / 25 caliber deck gun; Bofors 40 mm and Oerlikon 20 mm cannon;

USS Sea Dog (SS-401/AGSS-401) was a Balao-class submarine in the United States Navy. She was the first ship to be named for the dogfish, a small shark of the North Atlantic, considered destructive by fishermen.

Sea Dog was laid down on 1 November 1943 at the Portsmouth Navy Yard in Kittery, Maine. She was launched on 28 March 1944 sponsored by Mrs. Claire Dowden Lowrance, wife of the prospective commanding officer, and commissioned on 3 June 1944 with Commander Vernon L. Lowrance in command.

Following a month's training off the New England coast, Sea Dog sailed for Pearl Harbor to join Submarine Squadron (SubRon) 28 and prepare for her first war patrol. Arriving in Hawaii on 22 August, she sailed west on 13 September, topped off at Midway Island on 17 September; and entered her patrol area in the Nansei Shoto on 28 September.