JDS Yūshio

JDS Yūshio (SS-573) was the lead boat of the Yūshio-class submarine. She was commissioned on 7 March 1978.

JDS Yūshio
History
Japan
Name	Yūshio (ゆうしお)
Ordered	1975
Builder	Mitsubishi, Kobe
Laid down	3 December 1976
Launched	29 March 1979
Commissioned	26 February 1980
Decommissioned	11 March 1999
Reclassified	ATSS-8006
Homeport	Kure
Identification	Pennant number: SS-573
Fate	Scrapped
General characteristics
Class and type	Yūshio-class submarine
Displacement	2,200 tonnes (surfaced) 2,450 tonnes (submerged)
Length	76.0 m (249.3 ft)
Beam	9.9 m (32.5 ft)
Draught	7.4 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	Sonar Hughes/Oki ZQQ 5 hull mounted sonar ZQR 1 towed array Radar JRC ZPS 5/6 I-band search radar.
Armament	6 × 21 in (533 mm) torpedo tubes with reloads for: 1.) Type 89 torpedo 2.) Type 80 ASW Torpedo 3.) UGM-84 Harpoon

Construction and career

Yūshio was laid down at Mitsubishi Heavy Industries Kobe Shipyard on 14 April 1975 and launched on 19 May 1977. She was commissioned on 7 March 1978, into the 1st Submarine Group.

On 5 March 1981, she was transferred to the 1st Submarine Group, which was newly commissioned under the 1st Submarine Group, along with JDS Mochishio, who was commissioned on the same day.

Around 2:00 am on 12 May 1984, while sailing with a periscope off the south coast of Cape Muroto, she came into contact with the bottom of the Indian-flagged ore carrier Satya Kairash (42,198 tons) sailing to Higashiharima Port in Hyogo Prefecture and had a built-in sonar. The resulting collision caused damage to the ore carrier's underside tank.

On 1 August 1996, she was reclassified as an auxiliary submarine, her hull number was changed to ATSS-8006, and she became a ship under the direct control of the 1st Submarine Group.

She was decommissioned on 11 March 1999.