JDS Isoshio (SS-568)

[1][2] Isoshio was laid down at Kawasaki Heavy Industries Kobe Shipyard on 9 July 1970 and launched on 18 March 1972.

Participated in Hawaii dispatch training from October 9 to December 22, 1975 .

After the type change, she was slightly modified and used for education and training and experiments on various equipment.

[3] In early August 1994, she was used as a target for the new anti-submarine torpedo G-RX4 under development by the Technical Research and Development Institute off the coast of Izu Ōshima.

In addition, in order to carry out the test in a submerged state, which is the first attempt by the Maritime Self-Defense Force, a remodeling work was carried out to install a float structure on the hull.