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Sōryū-Class Attack Submarine

Type: Diesel-electric Attack Submarine

Builders: Mitsubishi Heavy Industries, Kawasaki Shipbuilding Corporation

Country of Origin: Japan

Operator: Japan Maritime Self-Defense Force (JMSDF)

Built: 2005-present | In Commission: 2009-present

Planned: 15 | Completed: 11 | Building: 3

Crew: 65

Displacement: 2,900 tonnes (surfaced), 4,200 tonnes (submerged) | Length: 84m | Beam: 9.1m | Draught: 8.5 m

Armament: 6 x 533 mm torpedo tubes for Type 89 heavyweight torpedos and UGM-84 Harpoon anti-ship missiles

On-board Systems: ZPS-6F surface/low-level air search radar; Hughes/Oki ZQQ-7 Sonar suite; 1 × bow-array, 4 × LF flank arrays and 1 × towed array sonar; ZLR-3 6 ESM equipment; 2 × 3-inch underwater countermeasure launcher tubes for launching of Acoustic Device Countermeasures (ADCs)

Propulsion: 2 Kawasaki 12V 25/25 diesel engines and 4 Kawasaki Kockums V4-275R Stirling engines

Speed: 13 kn (surfaced), 20 kt (submerged)

Range: c.6000 nautical miles at 6.5 kn

Diving Depth: c.500 m

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