Japan’s first Taigei-class submarine enters service

Japanese Maritime Self-Defense Force (JMSDF) has revealed that the navy’s first Taigei-class submarine entered service.


The commissioning ceremony for the vessel took place at Mitsubishi Heavy Industries’ Kobe Shipyard on 9 March. Taigei is the first vessel in its class, and its name means Great Whale, the officials noted.

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The 3000-ton submarine features a length of 84 meters and a width of 9.1 meters and can accommodate about 70 people. It has a diesel-electric propulsion.

The Taigei submarine is equipped with a sonar system with improved detection capability. What is more, it has an advanced, stealth-like design and a lithium battery system that ensures quiet operation and longer endurance.

The launching ceremony for the first vessel was held in October 2020. JMSDF launched the second Taigei-class submarine at Kawasaki Heavy Industries’ (KHI) shipyard in Kobe in October 2021.

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