DSV Shinkai

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The Shinkai 6500 (しんかい) is a manned research submersible that can dive up to a depth of 6,500 m. It was completed in 1990 and has the greatest depth range of any manned research vehicle in the world. The vehicle is owned and run by JAMSTEC (Japanese Agency for Marine Earth Sciene and Technology)

Two pilots and one researcher operate within a 73.5 mm thick titanium pressure hull with an internal diameter of 2.0 m. Buyoancy is provided by syntactic foam.

Three 14 cm methacryl resin view ports are arranged at he front and on each side of the vehicle.