Japan received SS-513 sub – new sonar and power system, Harpoon AShM

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TOKYO, ($1=115.71 Japanese Yens) — The Japan Maritime Self-Defense Force [JMSDF] is increasing its combat capability after today, March 9, officially launched and adopted the submarine JS Taigei [SS-513]. The news was announced through the social profiles of JMSDF.

Photo credit: Facebook

JS Taigei [SS-513] is the first JMSDF attack submarine of the Taigei class. JS Taigei is part of the JMSDF’s medium-term defense capability development plan. The submarine got its name in 2020, and according to experts, the cost of its construction amounts to nearly 720 million USD.

The commissioning ceremony of JS Taigei [SS-513] took place at Kobe Shipyard. The manufacturer of the new JMSDF vessel is Mitsubishi Heavy Industries. The Japanese government decided to build this submarine nearly five years ago when a contract was officially placed with Mitsubishi Heavy Industries.

Photo credit: Facebook

JS Taigei (SS-513)

It can be said that apart from being the first Taigei-class attacking submarine, this submarine is also a revolution in the Japanese naval defense forces. This is because it has various partition housing after Japan lifted the restriction on women SDF employees two years ago.

JS Taigei is 84 meters long and just over 9 meters wide. Japan operates a Sōryū class submarine, and according to the characteristics provided, the new Taigei class submarine weighs 100 tons more than its predecessor. Japanese sources claim that JS Taigei [SS-513] has new modern new power generators. The submarine will use lithium-ion batteries. BulgarianMilitary.com reminds us that the older Japanese submarines used mostly lead-acid batteries.

The sonar system is also new – ZPS-6H surface / low-level air search radar and Oki ZQQ-8 Sonar. The armament of the submarine is 6 x 533 mm torpedo tubes HU-606 21, which will defend through a torpedo Type 89 or Type 18. Torpedo Type 89 with the name G-RX2 are Japanese production and they are part of the armament of older Japanese vessels. Sources claim that JS Taigei [SS-513] will most likely receive from the latest torpedoes that are under development – Type 18 or G-RX6.

Photo credit: Facebook

Harpoon AShM

The submarine will be armed with Harpoon all-weather, over-the-horizon, anti-ship missile. This rocket was originally manufactured by its original designer – the company McDonnell Douglas. Today, the Harpoon AShM is manufactured by Boeing Defense, Space & Security. The Harpoon AShM is fitted with a solid-fuel rocket booster and encapsulated in a container to allow submerged launch through a torpedo tube.

Photo credit: Wikipedia

This rocket is just over 4.6 meters long. It has a different operating range depending on the booster. The rocket speed is high subsonic and reaches 460 knots. It weighs 628 kilograms and is in service in dozens of countries around the world.


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