JDS Nadashio

JDS Nadashio (SS-577) was a Japanese diesel-electric Yūshio-class submarine weighing 2,250 tons.[1] It was launched on 27 January 1983 and decommissioned by the Maritime Self-Defense Force on 1 June 2001.[2]

History
Japan
Name
  • Nadashio
  • (なだしお)
Ordered1980
BuilderMitsubishi, Kobe
Laid down16 April 1981
Launched27 January 1983
Commissioned6 March 1984
Decommissioned1 June 2001
IdentificationPennant number: SS-577
FateScrapped
General characteristics
Class and typeYūshio-class submarine
Displacement2,250 tonnes (surfaced)
Length76.0 m (249.3 ft)
Beam9.9 m (32.5 ft)
Draught7.4 m (24.3 ft)
Propulsion
  • 1-shaft diesel-electric
  • 3,400 shp (2,500 kW) (surfaced)
  • 7,200 shp (5,400 kW) (submerged)
Speed
  • 12 knots (22 km/h; 14 mph) (surfaced)
  • 20 knots (37 km/h; 23 mph) (submerged)
Complement
  • 10 officers
  • 65–70 enlisted
Sensors and
processing systems
Armament

Design and construction

The Yūshio-class was an enlarged derivative of the preceding Uzushio class, with improved electronics and capable of diving to greater depths.[3][4] Ten Yūshios were built, to a regular programme of one being ordered each Fiscal Year.[3]

Nadashio was 76.0 m (249 ft 4 in) long, with a beam of 9.9 m (32 ft 6 in) and maximum draught of 7.5 m (24 ft 7 in). Displacement was 2,250 t (2,210 long tons) surfaced. Like the Uzushios, the class was of double-hull construction, with a streamlined teardrop hull.[3] A 7,200 hp (5,400 kW) electric motor drove a single propeller shaft, while two Kawasaki-MAN diesel engines could charge the ship's batteries and power the ship on the surface.[4] Speed was 20 kn (23 mph; 37 km/h) submerged and 13 knots (15 mph; 24 km/h) on the surface.[3] Six 21-inch (533 mm) torpedo tubes were fitted amidships, while Nadashio was the first of her class to be able to launch Sub-Harpoon anti-ship missiles.[4] She had a crew of 75[4]–80.[3]

Nadashio was ordered under the Fiscal Year 1980 shipbuilding programme, and was laid down at Mitsubishi Heavy Industries' Kobe shipyard on 16 April 1981. She was launched on 27 January 1983 and commissioned on 6 March 1984.[4]

Service

In 1987, Nadashio was the first of her class to be fitted with a towed array sonar.[3]

On 23 July 1988 the submarine collided with and sank the sports fishing boat Fuji Maru No 1 causing the death of 30 people and injuring a further 17. Both the captain of Nadashio and the skipper of Fuji Maru No 1 were given suspended prison sentences because of the collision, while the Director General of the Japanese Defense Agency resigned as a result of the accident.[1][5]

Citations
  1. "Ill-fated sub Nadashio sails off to scrap yard". The Japan Times Online. 2 June 2001. Retrieved 4 October 2019.
  2. "Submarine Nadashio taken out of commission". 2001-06-04. Archived from the original on 2013-12-15. Retrieved 2013-01-13.
  3. Gardiner & Chumbley 1995, p. 236
  4. Moore 1985, p. 286
  5. Sturton, Ian (1989). "The Naval Year in Review: F (ii). Major Casualties at Sea From 1 April 1988 to 30 April 1989". In Gardiner, Robert (ed.). Warship 1989. London: Conway Maritime Press. p. 247. ISBN 0-85177-530-6.

References
  • Gardiner, Robert; Chumbley, Stephen, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
  • Moore, John, ed. (1985). Jane's Fighting Ships 1985–86. London: Jane's Yearbooks. ISBN 0-7106-0814-4.
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