Reference

The Research Vessel "NATSUSHIMA"

Length 67m Beam 13m Depth 6.3m Draft 3.8m Gross Tonnage 1,739tons

Since it carries various observation equipments and devices, enables to conduct comprehensive observation study of deep sea or trench. It also plays the role of the support ship of 3,000m class remotely operated vehicle "HYPER DOLPHIN". Formerly, it supported the 2,000m class manned submersible "SHIKAI 2000".
For details, please visit: http://www.jamstec.go.jp/e/about/equipment/ships/natsushima.html

The Remotely Operated Vehicle "HYPER DOLPHINE"

Length 3m Breadth 2m Height 2m Weight in the air 3.8tons Maximum depth capability 3,000m

An underwater robot equipped with high-definition TV camera, enable to shoot up to 3,000m depth of water. In the underwater survey of the SUMATRA earthquake source area in February of 2005, huge cracks and collapses on the sea floor were identified at the first time in the world.
By using two manipulators, it is possible to collect samples and install/ recover observation devices.
For details, please visit: http://www.jamstec.go.jp/e/about/equipment/ships/hyperdolphin.html