T-1-class submarine - Misplaced Pages

(Redirected from T-1 class submarine) Pair of submarines This article is about the class of U.S. Navy submarines built in 1952-1953, the lead ship of which later was renamed Mackerel. For the U.S. Navy Mackerel-class submarines built in 1939-1941, see Mackerel-class submarine.

Class overview
USS Marlin (SST-2) in the late 1950s
Builders	Electric Boat Division of General Dynamics Corporation, Groton, Connecticut
Operators	United States Navy
Built	1952–1953
In commission	1953–1973
Planned	2
Completed	2
Retired	2
Preserved	1
General characteristics
Type	Training submarine
Displacement	303 long tons (308 t) surfaced 347 long tons (353 t) submerged
Length	131 ft 3 in (40 m)
Beam	13 ft 7 in (4.14 m)
Draft	12 ft (3.7 m)
Propulsion	2 × General Motors Diesel engines (total 250 shp (190 kW)), 1 × Elliott electric motor (380 shp (280 kW)), 1 × battery, 1 shaft
Speed	10 knots (19 km/h; 12 mph) surfaced 10.5 knots (19.4 km/h; 12.1 mph) submerged
Range	2,000 nautical miles (3,700 km) surfaced at 10 knots (19 km/h)
Endurance	Submerged: 90 minutes at full speed, 102 hours at 3 knots
Test depth	225 ft (69 m)
Complement	2 officers, 12 enlisted men
Armament	1 × 21-inch (533 mm) torpedo tube

The T-1-class submarines were a pair of submarines designed by the United States Navy and built in the early 1950s for use in training submarine personnel and testing submarine equipment. Both submarines of the class served in these roles for over 19 years.

Design and construction

Except for the first 25 early development pre-World War I submarines, the T-1 class were among the smallest operational submarines ever built for the United States Navy. The first unit was planned under project SCB 68 as an experimental auxiliary submarine with hull number AGSS-570, but instead was built as the training submarine USS T-1 with hull number SST-1. Her sister ship, USS T-2, was planned as SST-2 from the beginning.

The T-1 class were built to resemble the 160-ton, 16-crew Soviet M-class submarines, of which over 100 were in service in 1950. It was thought the M class would be effective in restricted waters such as the Baltic Sea and parts of the Mediterranean Sea. The T-1 class were built to train anti-submarine warfare (ASW) forces in countering small submarines.

Both submarines were constructed by the Electric Boat Division of the General Dynamics Corporation at Groton, Connecticut, in 1952–1953.

Service history

Both submarines entered service in 1953 and were renamed in 1956, T-1 becoming USS Mackerel (SST-1) and T-2 becoming USS Marlin (SST-2). Both operated primarily in Florida and Caribbean waters to train submarine personnel, serve as targets for sonar and antisubmarine warfare training, and test submarine equipment. They were decommissioned simultaneously in a combined ceremony in 1973.

Ships

USS Mackerel (SST-1), ex-USS T-1, ex-AGSS-570

USS Mackerel (SST-1), planned as AGSS-570, was commissioned as T-1 (SST-1) in October 1953 and decommissioned in January 1973. A highlight of her career was testing of equipment for the NR-1 Deep Submergence Craft in 1966–1967. Mackerel was sunk as a target in 1978.

USS Marlin (SST-2), ex-USS T-2

USS Marlin (SST-2) was commissioned as USS T-2 (SST-2) in November 1953 and decommissioned in January 1973. Donated as a museum ship in August 1973, she was assigned on 20 August 1974 to go on display at Freedom Park in Omaha, Nebraska.

References

^ Bauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775–1990: Major Combatants. Westport, Connecticut: Greenwood Press. p. 296. ISBN 0-313-26202-0.
^ Friedman, Norman (1995). U.S. Submarines Through 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 222–225, 242. ISBN 1-55750-263-3.

NavSource Online: Submarine Photo Archive Mackerel (AGSS-570) T-1 (SST-1) / Mackerel (SST-1)
NavSource Online: Submarine Photo Archive T-2 (SST-2) / Marlin (SST-2)
This article includes information collected from the Naval Vessel Register, which, as a U.S. government publication, is in the public domain. The entry can be found here. for USS Mackerel (SST-1)
This article includes information collected from the Naval Vessel Register, which, as a U.S. government publication, is in the public domain. The entry can be found here. for USS Marlin (SST-2)
Gardiner, Robert and Chumbley, Stephen, Conway's All the World's Fighting Ships 1947–1995, p. 603 London: Conway Maritime Press, 1995. ISBN 1-55750-132-7.

External links

"Midget Submarines Play Targets For Killers." Popular Mechanics, July 1954, pp. 84–89/240.

v t e T-1-class submarines
T-1 / Mackerel T-2 / Marlin
List of submarines of the United States Navy List of submarine classes of the United States Navy

v t e US submarine classes after 1945
Nuclear-powered ballistic missile submarines - SSBN	George Washington class Ethan Allen class Lafayette class James Madison class Benjamin Franklin class Ohio class Columbia class
Nuclear-powered cruise missile submarines - SSGN	Halibut Ohio class
Nuclear-powered attack submarines - SSN	Nautilus Seawolf Skate class Skipjack class Tullibee Permit class Sturgeon class Narwhal Glenard P. Lipscomb Los Angeles class Seawolf class Virginia class SSN(X) class
Conventional-powered cruise missile submarines - SSG	Grayback class
Conventional-powered attack submarines - SS or SSK	Barracuda class Tang class Darter Barbel class
Radar picket submarines - SSR or SSRN	Sailfish class Triton
Auxiliary submarines - AGSS or SSA	T-1 class Albacore Dolphin NR-1
S Single ship of class
List of submarines of the United States Navy List of submarine classes of the United States Navy

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