View source for JS Ōsumi

{{Short description|Ōsumi-class tank landing ship of the JMSDF}}
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{{Infobox ship image
|Ship image=File:LST-4001 おおすみ (8).jpg
|Ship caption=JS ''Ōsumi''
}}
{{Infobox ship career
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|Ship country= Japan
|Ship flag={{shipboxflag|Japan|naval}}
|Ship name=*''Ōsumi''
*(おおすみ)
|Ship namesake=[[Ōsumi Peninsula]]
|Ship ordered=1993
|Ship awarded=
|Ship builder=[[Mitsui Engineering & Shipbuilding|Mitsui]], [[Tamano]]
|Ship original cost=
|Ship laid down=6 December 1995
|Ship launched=18 November 1996
|Ship sponsor=
|Ship christened=
|Ship completed=
|Ship acquired=
|Ship commissioned=11 March 1998
|Ship recommissioned=
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|Ship renamed=
|Ship reclassified=
|Ship refit=
|Ship struck=
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|Ship homeport=[[Kure, Hiroshima|Kure]]
|Ship identification=[[Pennant number]]: LST-4001
|Ship motto=
|Ship nickname=
|Ship honors=
|Ship captured=
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|Ship status=Active
|Ship notes=
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}}
{{Infobox ship characteristics
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|Header caption=
|Ship class= {{sclass|Ōsumi|tank landing ship}}
|Ship displacement=*{{convert|8900|t|LT|lk=out|abbr=on}} standard
*{{convert|13000|t|LT|abbr=on}} full load
|Ship length={{cvt|178|m|ftin}}
|Ship beam={{cvt|25.8|m|ftin}}
|Ship draught={{cvt|17.0|m|ftin}}
|Ship propulsion=*2 × [[Mitsui Engineering & Shipbuilding|Mitsui]] 16V42M-A [[Diesel engine|Diesel]], {{cvt|26,000|bhp|lk=on}})
*2 shafts
*1 × [[bow thruster]]
|Ship speed={{convert|22|kn|lk=in}}
|Ship range=
|Ship complement=137
|Ship troops=330 personnel
|Ship sensors=*[[OPS-14C]] [[Radar|air search radar]]
*[[OPS-28|OPS-28D]] [[surface-search radar]]
*[[OPS-20]] [[radar navigation|navigation radar]]
*[[TACAN]]
|Ship EW=4 × [[Mark 36 SRBOC]]
|Ship armament=*2 × 20&nbsp;mm [[Phalanx CIWS]]
* 2 × [[M2 Browning machine gun]]
|Ship armour=
|Ship armor=
|Ship aircraft=Up to 8 helicopters tied topside
|Ship boats=2 × [[Landing Craft Air Cushion|Landing Craft Air Cushion (LCAC)]]
|Ship capacity=up to 10 main battle tanks
|Ship aircraft facilities=[[Hangar]] and [[helipad]]
}}
|}
'''JS ''Ōsumi'' (LST-4001)''' is the [[lead ship]] of the {{sclass|Ōsumi|tank landing ship}}s of the [[Japan Maritime Self-Defense Force]] (JMSDF).
== Construction and career ==
''Ōsumi'' was [[Keel laying|laid down]] on 6 December 1995 and [[Launched (ship)|launched]] on 18 November 1996 by [[Mitsui Engineering & Shipbuilding]], [[Tamano]]. She was [[Commissioned (ship)|commissioned]] into the 1st Landing Group on 11 March 1998.<ref>GlobalSecurity.org, [http://www.globalsecurity.org/military/world/japan/osumi-unit.htm LST Osumi Class, shiplist]{{reliable source|date=February 2023}}</ref>
Initially, the ship was not equipped with a fin stabilizer (rolling prevention device) that improves stability during open sea voyages and helicopter takeoffs and landings due to political judgment, and in 2006, eight years after commissioning, international emergency assistance was provided. The stabilizer installation cost was finally budgeted by the [[Ministry of Defense (Japan)|Defense Agency]] (currently the Ministry of Defense) as a repair cost for a large transport ship to respond to the activity, and at the same time the capacity of aviation fuel was increased. It was also equipped with a tactical air navigation system ([[Tactical air navigation system|TACAN]]), which was not available at the time of commissioning.
The vessel departed [[Kobe]] with {{ship|JS|Bungo||2}} and {{ship|JS|Tokiwa|AOE-423|2}} on 23 September 1999 to transport temporary housing as an aid to the damage caused by the [[1999 İzmit earthquake|northwestern Turkey earthquake]] that occurred on 17 August.<ref>{{Cite web|title=１日も早く仮設住宅をトルコへ ～海上自衛隊初の２３日連続航海で～|url=http://www.clearing.mod.go.jp/hakusho_data/2000/column/frame/ak122003.htm|access-date=2021-05-24|website=www.clearing.mod.go.jp}}</ref> The first long-distance continuous voyage in the history of the Maritime Self-Defense Force was carried out to [[Alexandria]] at an average speed of {{convert|18|kn}} for 23 consecutive days without calling, and arrived at the port of [[Heidalpasha]] in [[Istanbul]] on 19 October. The return trip was scheduled to arrive at Kure on 22 November, but an issue that arose aboard ''Bungo'' delayed their arrival by one day. They arrived at [[Sasebo]] on the 22nd.
From 26 to 28 January 2010, special transportation training was conducted at Sasebo and the waters west of [[Kyushu]] together with {{ship|JS|Kunisaki||2}} and {{USS|Tortuga|LSD-46|6}}.{{citation needed|date=February 2023}}
This ship delivered supplies to the disaster area after the [[2011 Tohoku earthquake and tsunami]].<ref>{{cite web |work=Seawaves |url=http://www.seawaves.com/japan2011.asp |title=Warships Supporting Earthquake in Japan |archive-url=https://web.archive.org/web/20110323003053/http://www.seawaves.com/japan2011.asp|archive-date=2011-03-23}}; NHK broadcast, March 18, 2011.</ref>
From June to July 2012, she participated in the Pacific Partnership 2012, visited the Philippines and Vietnam, and engaged in medical activities and cultural exchanges.<ref>{{Cite web|url=https://www.mod.go.jp/js/Activity/Exercise/pp2012.htm|title = アジア太平洋地域における安全保障枠組・協力への取組 &#124; 統合幕僚監部}}</ref> An international emergency relief team was formed to rescue the damage caused by [[Typhoon Haiyan]] that struck the Philippines on 8 November 2013, the same year, and was dispatched along with {{ship|JS|Ise}} and the supply ship {{ship|JS|Towada}} (Sankai Operation).<ref name=":0">{{Cite book|title=Self-Defense Forces Hifleet arrives off Leyte Island, to deploy Operation Tomodachi. Up to 1180 people in history.|publisher=Sankei Shimbun|date=22 November 2013}}</ref> She left Kure on 18 November, arrived in [[Leyte Gulf]] on 22 November, carried out relief supplies transportation, medical care, and epidemic prevention activities, and returned to Japan on 20 December.<ref name=":0" /> In addition, ''Ōsumi'' was scheduled to participate in training for the defense of remote islands around [[Okinawa Prefecture|Okinawa]], but was redirected to provide support.<ref name=":1">{{Cite book|title=China Warning Three large SDF ships entering the disaster area Mainichi Shimbun|date=21 November 2013}}</ref> The training was planned to be attended by 34,000 people, and ''Ōsumi'' was planned to be a base in the training area.<ref name=":1" /> The remote island defense training itself was canceled due to the dropout of ''Ōsumi''.
On 15 January 2014, while en route from departure from Kure towards the Mitsui Tamano Shipyard for scheduled maintenance, ''Ōsumi'' was abnormally approached by the fishing boat ''Yugyosen'', which tried to cross the tank landing ship a reckless route. ''Ōsumi'' repeatedly warned the fishing boat, slowed down but still collided with ''Yugyosen''. The fishing boat capsized, four people on board were thrown into the sea and rescued by the ''Ōsumi''{{'}}s crew, but two of them, the captain of the fishing boat and the angler died.<ref>{{Cite web|date=2014-01-16|title=海自艦と釣り船が広島沖で衝突…２人意識不明 : 社会 : YOMIURI ONLINE（読売新聞）|url=http://www.yomiuri.co.jp/national/news/20140115-OYT1T00334.htm|access-date=2021-05-24|archive-url=https://web.archive.org/web/20140116103157/http://www.yomiuri.co.jp/national/news/20140115-OYT1T00334.htm|archive-date=2014-01-16}}</ref> On 16 May 2015, it was reported that ''Ōsumi'' was off Kyushu and was among Japanese naval assets operating with [[United States Navy|US Navy]] vessels and the [[French Navy]] conducting joint training. ''Ōsumi'' sailed with the French {{ship|French ship|Dixmude|L9015|2}} and {{ship|French frigate|Aconit|F 713|2}}.<ref>{{Cite web|date=2018-08-21|title=フランス海軍が自衛隊、アメリカ第7艦隊と共同訓練を実施 - La France au Japon|url=https://jp.ambafrance.org/article8878|access-date=2021-05-24|website=archive.fo|archive-date=2018-08-21|archive-url=https://archive.today/20180821045500/https://jp.ambafrance.org/article8878|url-status=dead}}</ref> Mutual embarkation training (cross-deck) was conducted with ''Dixmude''.
For nine days, beginning on 5 May 2018, ''Ōsumi'' participated in multilateral joint training on humanitarian assistance and disaster relief organization with the [[Indonesian Navy]] off [[Lombok]] island.<ref>{{cite web |url=https://www.mod.go.jp/msdf/release/201804/20180417.pdf |title=インドネシア海軍主催多国間共同訓練「コモド２０１８」への参加について |language=Japanese |publisher=Japan Maritime Self-Defense Forces |access-date=13 February 2023}}</ref> After that, from 22 May to 2 June, she called at [[Cam Ranh]], Vietnam and participated in the activities of Pacific Partnership 2018.<ref>{{Cite web |url=https://www.mod.go.jp/j/press/news/2018/05/21a.html |title=防衛省・自衛隊：パシフィック・パートナーシップ２０１８への参加について |access-date=2021-05-24 |archive-date=2020-07-01 |archive-url=https://web.archive.org/web/20200701175628/https://www.mod.go.jp/j/press/news/2018/05/21a.html |url-status=dead }}</ref> On 11 July the ship transported emergency supplies that Yokosuka City decided to provide in response to Kure City's request based on the mutual support agreement in the event of a disaster between the four former military port citiesand supplies requested by the Kure District General Manager to the Yokosuka District General Manager and arrived in Kure on the. In addition, the bathing facility on the ship was opened for the [[Japan Ground Self-Defense Force|Ground Self-Defense Force members]].<ref>{{Cite web|date=2018-08-21|title=呉地方隊:【ギャラリー】|url=http://www.mod.go.jp/msdf/kure/info/gallery/h30gouu.html|access-date=2021-05-24|website=archive.fo|archive-date=2018-08-21|archive-url=https://archive.today/20180821050030/http://www.mod.go.jp/msdf/kure/info/gallery/h30gouu.html|url-status=live}}</ref><ref>{{Cite web|date=2018-08-20|title=東京新聞:広島・呉市に支援物資 横須賀市、輸送艦で:神奈川(TOKYO Web)|url=http://www.tokyo-np.co.jp/article/kanagawa/list/201807/CK2018071202000130.html|access-date=2021-05-24|website=archive.fo|archive-date=2018-08-20|archive-url=https://archive.today/20180820061102/http://www.tokyo-np.co.jp/article/kanagawa/list/201807/CK2018071202000130.html|url-status=dead}}</ref> On 26 and 27 August, ''Ōsumi'' conducted joint training with {{USS|Wasp|LHD-1|6}} and several other ships in the waters around Okinawa.<ref>{{cite press release |url=https://www.mod.go.jp/msdf/release/201808/20180828.pdf |title=日米共同訓練の実施について |publisher=Japan Maritime Self-Defense Forces |language=Japanese |access-date=13 February 2023}}</ref> From 5 to 19 October, ''Ōsumi'' took part in Japan-US joint training that was conducted in [[Tanegashima]], [[Kagoshima Prefecture]] and the surrounding sea and airspace.<ref>{{cite press release |url=https://www.mod.go.jp/msdf/release/201810/20181001.pdf |title=日米共同訓練（ブルークロマイト）の実施について |language=Japanese |publisher=Japan Maritime Self-Defense Forces |access-date=13 February 2023}}</ref>
In 2021, ''Ōsumi'',  alongside the warships JS ''Ise'', {{ship|JS|Ashigara}}, {{ship|JS|Asahi}}, {{ship|JS|Kongō}}, {{ship|JS|Otaka}}, {{ship|JS|Shirataka}} and other Japanese naval elements, took part in a 17-day joint training in the [[East China Sea]], with the United States, Australia, and France.<ref>{{cite press release |url=https://www.mod.go.jp/msdf/release/202105/20210511.pdf |title=日米豪仏共同訓練（ＡＲＣ２１）について |language=Japanese |publisher=Japan Maritime Self-Defense Forces |access-date=13 February 2023}}</ref>
== Gallery ==
<gallery mode="nolines">
File:JDS Ohsumi LST-4001.jpg|JS ''Ōsumi'' and {{USS|Fort McHenry|LSD-43|6}} on 5 February 2006
File:US Navy 070307-N-0120A-057 A Japan Maritime Self Defense Force (JMSDF) landing craft air cushion (LCAC) passes by Japanese Defense Ship (JDS) Ohsumi (LST 4001) during LCAC operations as part of Transport Exercise (TRANSPORTEX).jpg|JS ''Ōsumi'' on 7 March 2007
File:JS Ōsumi at Nagasaki, -9 May 2010 a.jpg|JS ''Ōsumi'' on 9 May 2010
File:Bridge of JS Ōsumi, -9 May 2010 c.jpg|JS ''Ōsumi''<nowiki/>'s bridge on 9 May 2010
File:Vehicle deck and turn table of JS Ōsumi.jpg|JS ''Ōsumi''<nowiki/>'s hangar deck on 9 May 2010
File:Vehicle deck of JS Ōsumi (from stern).jpg
File:JS Osumi LST-4001 in JMSDF Yokosuka Naval Base IMG 1608 R 20150312.JPG|JS ''Ōsumi'' at [[Yokosuka]] on 12 March 2015
File:JS Osumi - Side View 002.jpg|JS ''Ōsumi'' in [[Manila]] on 27 April 2018
File:JS Osumi - Mast.jpg
</gallery>
==Citations==
{{reflist}}
{{Ōsumi-class tank landing ships}}
{{DEFAULTSORT:Osumi (LST-4001)}}
[[Category:Ōsumi-class tank landing ships|Osumi]]
[[Category:Ships built by Mitsui Engineering and Shipbuilding]]
[[Category:1996 ships]]