Deep sea rurvey & research ship “Yokosuka” at Kawasaki Heavy Industries' Kobe Shipyard, 15th January 2014
Owner: Japanese Government
Operator: Japan Agency for Marine-Earth Science & Technology (JAMSTEC)
Manager: Nippon Marine Enterprises
Flag: Japan
Port of registry: Yokosuka
Builder: Kawasaki Heavy Industries' Kobe Shipyard (Hull 411)
Gross tons: 4,439
Length overall: 105.22 m
Max. draft: 4.671 m
Engines: 2 x diesels, total 6,000 b.h.p., by Daihatsu Diesel Manufacturing Ltd., Moriyama
Cruising speed: c.16 knots
Carries a large submersible research vehicle, the “Shinkai 6,500”, capable of operating down to 6,500 m
Completed April 1990, originally operated by Japan Marine Science and Technology Center, but following a reorganisation of this entity was changed to the newly-formed JAMSTEC entity within the National Research and Development Agency in 1994