Description:
The Japan Marine Self Defense Force (JMSDF) Oyashi, also known as Oyashio or Class 590, is an entirely new design of diesel-electric powered submarine with the diving control surfaces at the sail. Like their predecessors these boats are intended to perform both anti-submarine (ASW) and anti-surface warfare (ASuW) missions in blue waters. The Japan Maritime Self-Defense Force (JMSDF) commissioned 10 Oyashio-class submarines from 1998 through 2007. These ships are the quietest and largest submarines of the Japanese Navy ever.
The diesel-electric powered Oyahio-class boats can achieve a top speed of 20 knots while submerged and displacing 2,750t. The diesel engine develops up to 7,700-shp of power. The improved Oyashio ships feature Stirling AIP air independent propulsion system from Kockums. The lead ship, JS Soryu, equipped with such a propulsion system was launched December 2007 at Mitsubishi Heavy Industries in Kobe, Japan. Oyashio-class boats can be equipped with 20 Type 89 torpedoes as well as Harpoon (UGM-84D) anti-ship missiles and mines (40) all of them launched through six 533mm torpedo tubes.
Specifications Accommodation: Crew 70
Number of Weapons: 20
Dimensions: Beam 10.3 m, Draft 7.4 m, Length 82 m
Weights: Displacement Submerged 2,750 t
Performance: Top Speed 20 kt (37 kph)
Power: Power 7,700 shp
Other: Torpedo Tubes 6
Oyashi - Contracts, Orders & Sales
News
Operators
Japan / 10
Ships
SS590 Oyashio
Commissioning: 1998
SS591 Michishio
Commissioning: 2000
SS592 Uzushio
Commissioning: 2000
SS593 Makishio
Commissioning: 2001
SS594
Commissioning: 2002
SS595
Commissioning: 2003
SS596
Commissioning: 2004
SS597
Commissioning: 2005
SS598
Commissioning: 2006
SS599 Soryu?
Commissioning: 2007
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Notes (*) lead contractor
IOC: Initial Operating Capability
FOC: Full Operating Capability
CEP: Circular Error Probable
Comm: Commissioning Date
Meters (m) Kilometers (km) Nautic Miles (nm) Inch (in) Yard (yd) Foot (ft) Millimeter (mm)
Pound (lb) Kilogram (kg) kN (KiloNewton) Ton (t)
Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
Liter (l) Galon (gl)
Year (yr) Minutes (min) Second (sec)
Shaft-Horse-Power (shp)
Japan / 10 