DSV Shinkai 6500

{{short description|Japanese crewed research submersible}}

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|Ship name= Shinkai 6500

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|Ship builder=Mitsubishi

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|Ship type=Deep-submergence vehicle

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|Ship length= {{convert|9.5|m|ftin|abbr=on}}

|Ship beam= {{convert|2.7|m|ftin|abbr=on}}

|Ship draft={{convert|3.2|m|ftin|abbr=on}}

|Ship power= Electric motor

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|Ship speed= {{convert|2.5|kn}}

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|Ship endurance= 129 hrs

|Ship test depth= {{convert|6500|m|ft|abbr=on}}

|Ship complement=3

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File:Shinnkai 6500 02.JPG

Shinkai 6500 (しんかい) is a crewed research submersible that can dive up to a depth of {{convert|6,500|m}}. It was completed in 1990. The Shinkai 6500 is owned and run by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and it is launched from the support vessel Yokosuka.{{cite book |last1=Ogura |first1=S. |last2=Kawama |first2=I. |last3=Sakurai |first3=T. |last4=Yoshiume |first4=T. |last5=lijima |first5=K. |last6=Imai |first6=Y. |last7=Ikuta |first7=A. |last8=Iwata |first8=M. |title=Oceans '04 MTS/IEEE Techno-Ocean '04 (IEEE Cat. No.04CH37600) |chapter=Development of oil filled pressure compensated lithium-ion secondary battery for DSV Shinkai 6500 |date=2004 |volume=3 |pages=1720–1726 |doi=10.1109/oceans.2004.1406384 |isbn=0-7803-8669-8 |s2cid=40281912 |chapter-url=https://ieeexplore.ieee.org/document/1406384 |access-date=11 March 2023 |chapter-url-access=subscription |archive-date=11 March 2023 |archive-url=https://web.archive.org/web/20230311212244/https://ieeexplore.ieee.org/abstract/document/1406384 |url-status=live }}

Two pilots and one researcher operate within a {{convert|73.5|mm|in|abbr=on|adj=mid|-thick}} titanium pressure hull with an internal diameter of {{convert|2.0|m}}.{{cite book |last1=Komuku |first1=Tetsuya |last2=Matsumoto |first2=Keita |last3=Imai |first3=Yoshiji |last4=Sakurai |first4=Toshiaki |last5=Ito |first5=Kazuhisa |title=2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies |chapter=1000 Dives by the Shinkai 6500 in 18 Years |date=April 2007 |pages=21–27 |doi=10.1109/ut.2007.370833 |isbn=978-1-4244-1207-5 |s2cid=22304940 |chapter-url=https://ieeexplore.ieee.org/document/4231163 |access-date=11 March 2023 |chapter-url-access=subscription |archive-date=11 March 2023 |archive-url=https://web.archive.org/web/20230311212253/https://ieeexplore.ieee.org/abstract/document/4231163 |url-status=live }} Buoyancy is provided by syntactic foam.{{cite web |title=SHINKAI 6500 |url=https://www.jamstec.go.jp/e/about/equipment/ships/shinkai6500.html |website=Japan Agency for Marine-Earth Science and Technology |access-date=11 March 2023 |archive-date=18 May 2019 |archive-url=https://web.archive.org/web/20190518211231/https://www.jamstec.go.jp/e/about/equipment/ships/shinkai6500.html |url-status=live }}

Three {{convert|14|cm|abbr=on}} methacrylate resin view ports are arranged at the front and on each side of the vehicle.

A Lego set based on the submersible was created through the Lego Cuusoo website.{{cite web |last1=Becraft |first1=Andrew |title=DSV Beluga dives into the uncharted abyss |url=https://www.brothers-brick.com/2012/03/12/dsv-beluga-dives-into-the-uncharted-abyss/ |website=The Brothers Brick |access-date=11 March 2023 |date=12 March 2012 |archive-date=29 January 2022 |archive-url=https://web.archive.org/web/20220129102209/https://www.brothers-brick.com/2012/03/12/dsv-beluga-dives-into-the-uncharted-abyss/ |url-status=live }}

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