JDS ''Isoshio'' (SS-568) was the third boat of the s. She was commissioned on 25 November 1972.

Construction and career

''Isoshio'' was

laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one ...

Kawasaki Heavy Industries is a Japanese Public company, public multinational corporation manufacturer of motorcycles, engines, Heavy equipment (construction), heavy equipment, aerospace and Military, defense equipment, rolling stock and ships, headquartered in Minato, To ...

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Shipyard on 9 July 1970 and launched on 18 March 1972. She was commissioned on 25 November 1972, into the 1st Submarine Group. On 28 September 1973, she was transferred to the 5th Submarine, which was newly commissioned under the 1st Submarine Group, along with , who was commissioned on the same day. Participated in

Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...

dispatch training from October 9 to December 22, 1975 . On March 24, 1989, she was reclassified as first training and experimental submarine ATSS-8001, and became a ship under the direct control of the 1st submarine group. After the type change, she was slightly modified and used for education and training and experiments on various equipment. She was decommissioned on 25 March 1992. In early August 1994, she was used as a target for the new

anti-submarine An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon ...

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such ...

G-RX4 under development by the Technical Research and Development Institute off the coast of

Izu Ōshima is an inhabited volcanic island in the Izu archipelago in the Philippine Sea, off the coast of Honshu, Japan, east of the Izu Peninsula and southwest of Bōsō Peninsula. As with the other islands in the Izu Island group, Izu Ōshima forms ...

. 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.

Citations

{{DEFAULTSORT:Isoshio (SS-568) 1972 ships Uzushio-class submarines Ships built by Kawasaki Heavy Industries Ships sunk as targets