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Uzushio-class submarine

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Uzushio (SS-566)
Class overview
NameUzushio
Builders
Operators Japan Maritime Self-Defense Force
Preceded byTemplate:Sclass-
Succeeded byTemplate:Sclass-
Built1968–1978
In commission1971–1996
Planned8
Completed7
Cancelled1
Retired7
General characteristics
TypeSubmarine
Displacement1,850 tonne (1,821 ton) standard, 3,600 tonne (3,543 ton) submerged
Length72.0 m (236.2 ft)
Beam9.9 m (32 ft)
Draught7.5 m (25 ft)
Depth10.1 m (33 ft)
Propulsion
  • 1-shaft diesel-electric
  • 2 × Kawasaki-MAN V8V24/30AMTL diesel
  • 3,400 bhp (2,500 kW) (surfaced)
  • 7,200 shp (5,400 kW) (submerged)
Speed
  • 12 knots (22 km/h) surfaced
  • 20 knots (37 km/h) submerged
Range5,500 nautical miles (10,200 km; 6,300 mi) at 12 knots
Complement
  • SS-566 to SS-570
  • 80
  • SS-571 and SS-572
  • 75
Sensors and
processing systems
  • ZPS-4 surface search radar
  • ZQQ-1 (SS-566, 567), ZQQ-2 (SS-568, 569, 570), ZQQ-3 (SS-571, 572) passive sonar
  • SQS-4 (SS-566, 567, 568, 569, 570), SQS-36J (SS-571, 572) active sonar
Electronic warfare
& decoys
ZLA-5 ESM
Armament
  • 6 × 533 mm (21 in) Bow torpedo tubes
  • 12 × type 72 torpedo
  • 6–8 × Mk 37 torpedo

The Uzushio-class submarine (Whirlpools) was a series of submarines in service with Japanese Maritime Self Defense Force which was the first generation of the teardrop type submarine that valued the underwater performance against that of the conventional-hull type Template:Sclass-. Seven from 1967 fiscal year were built with the third defense plan. The eighth 49 fiscal year warship was discontinued and construction was discontinued because of the construction expense and sudden rise oil crisis though eight were planned at first. Many were converted to training submarines (ATSS) towards the end of their lives.

General characteristics

The Uzushio-class submarine adopted the teardrop hull type for the first time in the Maritime Self-Defense Force. When the Template:Sclass- was built, the adoption of the teardrop type had been examined. However, the Maritime Self-Defense Force at that time selected the conventional model that valued safety from the operation results. It was moving to the warship type that valued the underwater performance, and the examination that used the model in 1960 fiscal year was advanced, and necessary data was obtained also with TRDI in the age.

When designing, the location etc. are original though it refers to the Template:Sclass- of United States Navy of not a complete copy but the inner shell structure and sail plane and torpedo tube.

Boats

Project no. Building no. Pennant no. Name Laid down Launched Commissioned Note
S118 8081 SS-566 Uzushio (うずしお) 25 September 1968 11 March 1970 21 January 1971 Decommissioned 24 March 1987, scrapped
8082 SS-567 Makishio (まきしお) 21 June 1969 27 January 1971 2 February 1972 Decommissioned 11 March 1988, scrapped
S119 8083 SS-568/
ATSS-8001
Isoshio (いそしお) 9 July 1970 18 March 1972 25 November 1972 Converted to auxiliary training submarine (ATSS-8001) on 24 March 1989, decommissioned 25 March 1992, sunk as target off Izu Ōshima August 1994
8084 SS-569/
ATSS-8002
Narushio (なるしお) 8 May 1971 22 November 1972 28 September 1973 Converted to auxiliary training submarine (ATSS-8002) on 8 June 1990, decommissioned 15 March 1993, scrapped
8085 SS-570/
ATSS-8003
Kuroshio (くろしお) 5 July 1972 22 February 1974 27 November 1974 Converted to auxiliary training submarine (ATSS-8003) on 20 March 1991, decommissioned 1 March 1994, scrapped
S119A 8086 SS-571/
ATSS-8004
Takashio (たかしお) 6 July 1973 30 June 1975 30 January 1976 Converted to auxiliary training submarine (ATSS-8004) on 6 June 1992, decommissioned 26 July 1995, scrapped
8087 SS-572/
ATSS-8005
Yaeshio (やえしお) 14 April 1975 19 May 1977 7 March 1978 Converted to auxiliary training submarine (ATSS-8005) on 14 August 1994, decommissioned 1 August 1996, scrapped
1 submarine Canceled because of the 1973 oil crisis, naval budget was used for the DE Chikugo-class and others.