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Japan Maritime Self Defense Force / JMSDF
Soryu (16SS) class Attack Submarine - SS
 
 
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01/22
Units:
Pennant / Name Jap. Name -  Meaning Laid down Launched Commissioned STATUS Homeport
SS-501 JS Sōryū そうりゅう - Blue Dragon March 31, 2005 December 5, 2007 March 30, 2009 IN SERVICE Kure
SS-502 JS Unryū うんりゅう - Cloud Dragon March 31, 2006 October 15, 2008 March 25, 2010 IN SERVICE Kure
SS-503 JS Hakuryū はくりゅう - White Dragon February 6, 2007 October 16, 2009 March 14, 2011 IN SERVICE Kure
SS-504 JS Kenryū けんりゅう - Sword Dragon March 31, 2008 November 15, 2010 March 16, 2012 IN SERVICE Kure
SS-505 JS Zuiryū ずいりゅう - Auspicious Dragon March 16, 2009 October 20, 2011 March 6, 2013 IN SERVICE Yokosuka
SS-506 JS Kokuryū こくりゅう - Black Dragon January 21, 2011 October 31, 2013 March 9, 2015 IN SERVICE Yokosuka
SS-507 JS Jinryū じんりゅう - Benevolent Dragon February 14, 2012 October 8, 2014 March 7, 2016 IN SERVICE Kure
SS-508 JS Sekiryū せきりゅう - Red Dragon March 15, 2013 November 2, 2015 March 13, 2017 IN SERVICE Kure
SS-509 JS Seiryū せいりゅう - Pure Dragon October 22, 2013 October 12, 2016 March 12, 2018 IN SERVICE Yokosuka
SS-510 JS Shōryū しょうりゅう - Soaring Dragon January 28, 2015 November 6, 2017 March 18, 2019 IN SERVICE Kure
SS-511 JS Ōryū おうりゅう - Phoenix Dragon November 16, 2015 October 4, 2018 March 5, 2020 IN SERVICE Kure
SS-512 JS Tōryū とうりゅう - Fighting Dragon January 27, 2017 November 6, 2019 March 24, 2021 IN SERVICE Yokosuka
 
Specifications:
 
Length: 84 meters (275 feet 7 inches)
Beam: 9.1 meters (29 ft 10 in)
Height: 10.3 m (33 ft 10 in)
Draft: 8.5 meters (27 ft 11 in)
Displacement: 4200 tons (submerged) / 2900 tons (surfaced)
Speed: 13 knots (24 km/h; 15 mph) surfaced / 20 kn (37 km/h; 23 mph) submerged
Range: AIP endurance - 6100 nautical miles (11300 km; 7060 miles) at 6.5 knots (12 km/h; 7.48 mp/h)
Complement: 65

 Propulsion:
DIESEL-ELECTRIC / air independent propulsion - AIP
2 x Kawasaki 12V25/25SB diesel engines
4 x Kawasaki-Kockums V4-275R Stirling AIP engines
2 x main electric-motors
3900 hp (2900 kW) surfaced / 8000 hp (6000 kW) submerged
1 shaft / 1 propeller

Armament:
6 x HU-606 21-inch (533mm) torpedo tubes
 for a mix of 30
 Type 89 torpedoes
UGM-84 Harpoon SSM
Systems:
ZPS-6F surface/low-level air search radar
 
Hughes/Oki ZQQ-7 Sonar suite:
1 x bow-array, 4 x LF flank arrays and 1x towed array sonar
 
ZLR-3-6 ESM equipment
2 x 76mm (3-in) underwater countermeasure launcher tubes for launching of Acoustic Device Countermeasures (ADCs)
 

 
The Sōryū-class submarines (16SS) are diesel-electric attack submarines. The first boat in the class entered service with the Japan Maritime Self-Defense Force in 2009. The design is an evolution of the Oyashio-class submarine, from which it can most easily be distinguished by its X-shaped stern combination diving planes and rudders.

It is Japan's first air-independent propulsion submarine. From Sōryū to Shōryū are fitted with Kockums Naval Solutions Stirling engines license-built by Kawasaki Heavy Industries, allowing them to stay submerged for longer periods of time. Furthermore, Ōryū is the world's first lithium-ion battery submarine. The cost of the sixth submarine (Kokuryū) was estimated at 540 million USD.

Variants:
The eleventh Sōryū-class submarine (Ōryū) is the first Japanese submarine in the fleet to mount lithium-ion batteries. The JS Ōryū was given a budget of ¥64.3 billion/US$536.7 million under the 2015 Japanese Defense Budget. Lithium-ion batteries have almost double the electric storage capacity of traditional lead-acid batteries, and by not only replacing them in the existing battery storage areas but adding to the already large battery capacity by also filling the huge space (several hundred tons displacement) inside the hull previously occupied by the AIP Stirling engines and their fuel tanks with these new batteries, the amount of (more powerful) batteries carried overall is massive. This has improved the underwater endurance significantly and is felt will be an advantage over the slow recharge capability of the AIP system. In any event, JMSDF believes that lithium-ion is the way forward and intends to 'trial' this new system and compare it to the previous AIP system for operational effectiveness.

source: wikipedia (11/20)
 
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