Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Ranks Military Pay Chart (2024)
Naval Warfare

Harushio (class)

Diesel-Electric Attack Submarine [ 1990 ]

As of February 2017, all of the Harushio-class diesel-electric attack submarines have been decommissioned from JMSDF service.

Authored By: Staff Writer | Last Edited: 05/02/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

Japan's important position in the Pacific has required it to field a capable naval force. Its modern, powerful surface-going fleet is augmented by its commitment to an underwater fighting force by way of attack submarines. One of the active classes once-available to the Japanese Maritime Self-Defense Force (JMSDF) service was the Harushio-class. These boats, numbering seven in all, were built from 1987 into 1997 and saw commissioning from 1990 into 1997. However, their reign under the high seas was relatively short for the class was decommissioned in full with the retirement of Asashio (SS-589) in February of 2017.

Boats in the class included lead-ship Harushio (SS-583) followed by Natsushio (SS-584), Hayashio (SS-585/TSS-3606), Arashio (SS-586), Wakashio (SS-587), Fuyushio (SS-588/TSS-3607) and Asashio (SS-589/TSS-3601). Decommissioning of the boats spanned from 2009 into 2017.

The group was built to a standard ranging in displacement from 2,500 tonnes when surfaced to 3,200 tonnes when submerged. Early boats were completed with an overall length of 252.6 feet and later ones came online with lengths of 255 feet and 285.4 feet. All of the boats in the class had a beam of 32.9 feet and draught of 25.2 feet. The boats were given low-profile bows and tubular hulls. The fin, or sale, was positioned forward of midships and carried the dive planes. The rudder consisted of a cruciform pattern with a single propeller unit exposed. Drive power was provided for by a diesel-electric configuration feeding the single shaft astern. This arrangement forced the vessel to surface to recharge its batteries for undersea operation. The diesels provided 3,400 horsepower when surface-running and the electric motor made 7,200 horsepower for undersea travel. Surfaced speeds could reach 12 knots while submerged speeds peaked at 20 knots.

The early boats in the series all had crews numbering 75 while SS-589 fielded around 70. Installed systems included the Hughes/Oki ZQQ 5B hull-mounted sonar system and the ZQR-1 series towed sonar array. A JRC ZPS-6 I-band made up the search radar fit. Armament was 6 x 533mm (21") bow-facing torpedo tubes with 20 reloads carried. The vessel could also fire the UGM-84 "Harpoon" American-designed anti-ship missile as required.

Lead-ship Harushio (SS-583) was laid down on April 21st, 1987 and launched to sea on July 26th, 1989. She was formally commissioned on November 30th, 1990 and led a rather quiet service life until decommissioned on March 27th, 2009.

Natsushio was introduced in March of 1991 and operated until March of 2010. Hayashio served from March of 1992 until March of 2011. Arashio followed in March of 1993 until March of 2012. Wakashio operated from March of 1994 until March of 2013. Fuyushio served from March of 1995 until March of 2015. Asashio, the last of the class in every regard, was commissioned on March 12th, 1997 and served actively until February 27th, 2017. She was converted to a training submarine in March of 2000 and redesignated as TSS-3601. She was then converted, once again, to a test submarine in April 2002 before the end arrived for the boat.

Likewise, Hayashio and Fuyushio were both converted to training subs (March 2008 and March 2011, respectively) before the end of their days.

Natsushio, Hayashio, Arashio and Asashio carried the names of former Imperial Japanese Navy (IJN) destroyers of the World War 2 period (1939-1945).©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.


Service Year

Japan national flag graphic

Destroyed, Scrapped.


JS Harushio (SS-583); JS Natsuhio (SS-584); JS Hayashio (SS-585); JS Arashio (SS-586); JS Wakashio (SS-587); JS Fuyushio (SS-588); JS Asashio (SS-589)

National flag of modern Japan Japan (retired)
(OPERATORS list includes past, present, and future operators when applicable)
Submerged Attack
Traveling under the surface to search, track, and / or engage or reconnoiter areas.
Maritime Patrol
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Fleet Support
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.

252.6 ft
76.99 m
32.9 ft
10.03 m
25.2 ft
7.68 m

Installed Power: Marine diesel engines developing 3,400 horsepower with electric motors developing 7,200 horsepower to 1 x Shaft astern.
Surface Speed
12.0 kts
(13.8 mph)
Submerged Speed
20.0 kts
(23.0 mph)

kts = knots | mph = miles-per-hour | nm = nautical miles | mi = miles | km = kilometers

1 kts = 1.15 mph | 1 nm = 1.15 mi | 1 nm = 1.85 km
6 x 21" (533mm) bow-facing torpedo tubes.

Supported Types

Graphical image of an aircraft aerial torpedo

(Not all weapon types may be represented in the showcase above)

Military lapel ribbon for the Cold War period
Military lapel ribbon for early warship designs
Military lapel ribbon for the Falklands War
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Korean War
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the Attack on Pearl Harbor
Military lapel ribbon for the Russian Invasion of Ukraine
Military lapel ribbon for the Vietnam War
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2

Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective naval campaigns / operations / periods.

Images Gallery

1 / 1
Image of the Harushio (class)
Image released to the Public Domain by Wikipedia user Max Smith.

Disclaimer | Privacy Policy | Cookies

2024 Military Pay Chart Military Ranks DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content; site is 100% curated by humans.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, WDMMA.org (World Directory of Modern Military Aircraft), WDMMW.org (World Directory of Modern Military Warships), SR71blackbird.org, detailing the history of the world's most iconic spyplane, and MilitaryRibbons.info, cataloguing military medals and ribbons. Special Interest: RailRoad Junction, the locomotive encyclopedia.

©2023 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2023 (20yrs)