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Oyashio-class Submarine

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The Oyashio-class patrol submarines are 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 provide space for a flank sonar array.

Specifications[edit]

  • Type: Patrol Submarine
  • Service Period: 1998-Present
  • Characteristics
    • Length: 268 feet 1 inch (81.71 meters)
    • Beam: 29 feet 2 inches (8.89 meters)
    • Draft: 24 feet 3 inches (7.4 meters)
    • Displacement: 2,750 tonnes (surfaced), 4,000 tonnes (submerged)
  • Crew: 70 (10 officers and 60 enlister)
  • 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:
    • Surfaced: 12 knots (22.23 km/h)
    • Submerged: 20 knots (37.04 km/h)
  • Sensor Suite:
    • Hughes/Oki ZQQ-6 hull-mounted sonar, flank arrays, 1 towed array
    • JRC ZPS 6 I-band search radar
  • Armament
    • HU-605 21" torpedo tubes with 20 reloads for either Type 89 torpedoes or UGM-84 Harpoon AShMs

Unit Run[edit]

  • JS Oyashio (SS-590)
  • JS Michishio (SS-591)
  • JS Uzushio (SS-592)
  • JS Makishio (SS-593)
  • JS Isoshio (SS-594)
  • JS Narushio (SS-595)
  • JS Kuroshio (SS-596)
  • JS Takashio (SS-597)
  • JS Yaeshio (SS-598)
  • JS Setoshio (SS-599)
  • JS Mochishi (SS-600)
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