JS Michishio
1997 Oyashio-class submarine

JS Michishio (SS-591) is the second boat of the Oyashio-class submarines. She was commissioned on 10 March 1999, and served as an attack submarine for 18 years before being reassigned as a training vessel, with the redesignated hull number TSS-3609.
Construction and career
Michishio was laid down at Mitsubishi Heavy Industries Kobe Shipyard on 16 February 1995 and launched on 18 September 1997. She was commissioned on 10 March 1999 and deployed to Kure.
The vessel participated in RIMPAC 2007 from 9 January to 11 April 2007.
On 27 February 2017, when the training submarine Asashio was decommissioned, Michishio was converted to a training submarine and transferred to the 1st training submarine under the direct control of the submarine fleet. From 18 March to 1 May 2017, the 2016 open sea practice voyage (flight) was carried out with the escort ship JS Akizuki and the two vessels called at Kota Kinabalu, Malaysia.
On 18 June 2020, Lieutenant Risa Takenouchi was the first woman in Japanese service to be appointed to the crew of a submarine. Takenouchi, who entered the "submarine education and training corps" for the first time in January, was educated for about five months. After completing the course, she joined the training unit Michishio and started training on a submarine.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 16, 2026. The linked authority identifier is Q11278961. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1999, 1995, 1997 and 2007.
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This entry incorporates text from “JS Michishio” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.