JS Oyashio

JS Oyashio (SS-590) is the lead boat of the Oyashio-class submarines. She was commissioned on 16 March 1998.

For other ships with the same name, see Japanese ship Oyashio.

JS Oyashio
History
Japan
Name
  • Oyashio
  • (おやしお)
NamesakeOyashio
Ordered1993
BuilderKawasaki, Kobe
Cost¥52.19 million
Laid down26 January 1994
Launched15 October 1996
Commissioned16 March 1998
ReclassifiedTSS-3608
HomeportKure
IdentificationPennant number: SS-590
StatusDecommissioned
General characteristics
Class and typeOyashio-class submarine
Displacement
Length81.7 m (268 ft 1 in)
Beam8.9 m (29 ft 2 in)
Draught7.4 m (24 ft 3 in)
Propulsion
  • Diesel-electric
  • 2 Kawasaki 12V25S diesel engines
  • 2 Kawasaki alternators
  • 2 Toshiba motors
  • 3,400 hp (2,500 kW) surfaced
  • 7,750 hp (5,780 kW) submerged
Speed
  • 12 knots (22 km/h; 14 mph) (surfaced)
  • 20 knots (37 km/h; 23 mph) (submerged)
Complement70 (10 officers)
Sensors and
processing systems
  • Sonar: Hughes/Oki ZQQ-6 hull-mounted sonar, flank arrays, 1 towed array
  • Radar: JRC ZPS 6 I-band search radar.
Armament

Construction and career

Oyashio was laid down at Kawasaki Heavy Industries Kobe Shipyard on 26 January 1994 and launched on 15 October 1996. She was commissioned on 16 March 1998 and deployed to Yokosuka.[1]

From 11 January to 10 April 2006, she participated in RIMPAC 2006.

On 10 January 2009, during a performance test 4.6 kilometres (2.9 mi) southwest of the Maritime Self-Defense Force Kagoshima Laboratory in Kirishima City, Kagoshima Prefecture, the Maritime Self-Defense Force's fishing boat 28th Kamemaru came into contact with the mast. A part of the stern of the fishing boat was damaged and dropped, but no one was injured. The fishing boat was chartered by the Maritime Self-Defense Force and was wary of other vessels from approaching during the performance test of Oyashio.[2] On 8 December of the same year, the Kagoshima Maritime Security Department sent documents to the captain and three others on suspicion of the risk of a possible traffic incident. Furthermore, at around 0:15 pm on 17 June, the same year, during training on the Pacific Ocean about 28 kilometres (17 mi) east of Shiriyazaki, a cable for resource exploration (4.8 km) towed by the Agency for Natural Resources and Energy research vessel Shigen (10,395 tons) of the Ministry of Economy, Trade and Industry causes an incident that left some of the crew injured.

On 6 March 2015, due to the removal of the training submarine JDS Fuyushio, Oyashio's designation was changed to a training submarine on the same date, and the first training submarine under the direct control of the submarine fleet. After joining the corps, the submarine's fixed port was transferred to Kure.[3]

From 19 March to 27 April 2016, she participated in the open sea practice voyage (flight) with the escort vessels JS Ariake and JS Setogiri. On 3 April, she entered Subic Bay on Luzon Island, Philippines, facing the South China Sea.[4]

Citations
  1. "JS Oyashio (SS-590)". Military Equipment Guide With Photos. Retrieved 2 February 2021.
  2. "Submarine Oyashio comes into contact with a guard ship. Testing off Kagoshima". Yomiuri Online. 11 January 2009.
  3. "呉地方隊:【ギャラリー】". www.mod.go.jp. Retrieved 2 February 2021.
  4. INC, SANKEI DIGITAL (27 April 2016). "【防衛最前線（６７）】練習潜水艦「おやしお」を南シナ海へ派遣 海自はあえて中国に痛烈なメッセージを放った". 産経ニュース (in Japanese). Retrieved 2 February 2021.

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