Oyashio-class Submarine

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

 * 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

 * 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)