USS Sea Dog (SS-401)

History
Builder:	Portsmouth Naval Shipyard, Kittery, Maine
Laid down:	1 November 1943
Launched:	28 March 1944
Commissioned:	3 June 1944
Decommissioned:	27 June 1956
Struck:	2 December 1968
Fate:	Sold for scrap, 18 May 1973
General characteristics
Class and 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. Vernon L. Lowrance, 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.

With daylight traffic routed well inshore, she hunted unsuccessfully in the Kikaijima, Amami O Shima, and Okinoerabujima areas for the first few days, then searched the likely traffic lanes to Naha and Unten Ko. By 3 October, she had rounded Okinawa to patrol in the approaches to Nakagusuku Wan, and, by 6 October, she was again northwest of Okinawa in the Iheya Jima area.

Sea Dog remained west of Okinawa for another five days but found no targets worthy of a torpedo. On 10 October, however, she took an armed trawler under fire and left it burning.

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Wikipedia