Oyashio class submarine

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SS590 Oyashio, navigates through Pearl Harbor.
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SS590 Oyashio, navigates through Pearl Harbor.

The Oyashio is a class of Japanese diesel-electric submarine operated by the JMSDF. The submarines entered service in the late 1990s. The submarines are larger than the earlier Harushio class submarines, to make room for a flank sonar array.

[edit] Specifications

  • Displacement:
    • 2,750 tons surfaced
    • 3,000 tons submerged
  • Dimensions:
    • Length: 81.7 m
    • Beam: 8.9 m
    • Draft: 7.4 m
  • Maximum speed
    • 12 knots surfaced
    • 20 knots submerged
  • Propulsion: 1 shaft diesel electric
  • Armament
    • Torpedoes: 6 × 21 inch (533 mm) torpedo tubes. Carries a total of 20 of : Type 89 or Type 80 ASW torpedoes, or Sub-Harpoon missiles.
  • Sonar: Hughes/Oki ZQQ 5B/6 hull mounted sonar, flank arrays, ZQR 1 towed array.
  • Radar: JRC ZPS 6 I-band search radar.
  • Complement: 70 (10 officers).

[edit] Boats

Two Oyashio class submarines docked at Yokosuka naval base.
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Two Oyashio class submarines docked at Yokosuka naval base.
Name Laid down Launched Commissioned
Oyashio (SS 590) 26 January 1994 15 October 1996 16 March 1998
Michishio (SS 591) 16 February 1995 18 September 1997 10 March 1999
Uzushio (SS 592) 6 March 1996 26 November 1998 9 March 2000
Makishio (SS 593) 26 March 1997 22 September 1999 29 March 2001
Isoshio (SS 594) 9 March 1998 27 November 2000 14 March 2002
Narushio (SS 595) 2 April 1999 4 October 2001 3 March 2003
Kuroshio (SS 596) 27 March 2000 23 October 2002 8 March 2004
Takashio (SS 597) 30 January 2001 1 October 2003 9 March 2005
Yaeshio (SS 598) 15 January 2002 4 November 2004 9 March 2006
Setoshio (SS 599) 23 January 2003 5 October 2005 March 2007
Mochishio (SS 600) 23 February 2004 6 November 2006 March 2008


Current and future combatant ship classes of the JMSDF

DDH : Destroyer Helicopter 13500t class | Shirane class | Haruna class
DDG : Guided Missile Destroyer Atago class | Kongo class | Hatakaze class | Tachikaze class
DD : Destroyer 5000t class | Takanami class | Murasame class | Asagiri class | Hatsuyuki class
DE : Destroyer Escort Abukuma class | Yubari class | Ishikari
SS : Submarine 2900t class | Oyashio class | Harushio class
See also List of combatant ship classes of the Japan Maritime Self-Defense Force
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