JS Chōgei
Taigei-class attack submarine
From Wikipedia, the free encyclopedia
Chōgei (ちょうげい) is a diesel-electric submarine of the Japan Maritime Self-Defense Force, and the fifth and final member of the Taigei class. Her name is written in kanji as "長鯨", literally meaning "giant whale",[1][better source needed][2][3] and this is the third use of the name, after the Meiji-era steamboat Chōgei Maru, and the Imperial Japanese Navy's Jingei-class submarine tender Chōgei.[2][3]
_launching_ceremony_at_the_Mitsubishi_Dockyard_Kobe_October_4,_2024_10.jpg)
Chōgei before being launched, 4 October 2024 | |
| History | |
|---|---|
 Japan | |
| Name | Chōgei |
| Builder | Mitsubishi Heavy Industries Kobe Shipyard |
| Cost | 68.4 billion yen |
| Laid down | 19 April 2022 |
| Launched | 4 October 2024 |
| Commissioned | 10 March 2026 |
| Identification | Pennant number: SS-517 |
| Status | Active |
| General characteristics | |
| Class & type | Taigei-class submarine |
| Displacement | 3,000 t (3,000 long tons) (standard) |
| Length | 84 m (275 ft 7 in) |
| Beam | 9.1 m (29 ft 10 in) |
| Depth | 10.4 m (34 ft 1 in) |
| Installed power | 6,000 PS (4,400 kW; 5,900 hp) (shaft output) |
| Propulsion | Diesel-electric transmission, lithium-ion batteries |
| Crew | 70 |
| Sensors & processing systems |
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| Armament |
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Construction and career
Chōgei was laid down on 19 April 2022 at Mitsubishi Heavy Industries Kobe Shipyard as part of the JMSDF's Mid-Term Defense Program of 2021, and was launched on 4 October 2024 after being christened. After being fitted out and underwent various trials, the vessel was handed over to the Japan Maritime Self-Defense Force for commissioning on 10 March 2026.[2][3][4]
