Nippon Marine Enterprises, Ltd. Nippon Marine Enterprises, Ltd.

Operating and managing the research vessel Kaiyo

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  The research vessel Kaiyo is a semi-submerged catamaran known as a SWATH, a type of vessel that minimizes the effects of waves so that on-board work can be performed safely and efficiently. In addition, the Kaiyo's wide deck, wider than decks of other ships, allows it to carry more observation equipment. For operation in very deep waters, the Kaiyo is equipped with a dynamic positioning system (DPS). Based on information from the GPS and acoustic transponders, the Kaiyo is able to automatically maintain its position, improving the accuracy of observations. The Kaiyo also has a multichannel seismic (MCS) reflection survey system, ocean bottom seismographs (OBSs), a multi-narrow beam echo sounder, which provides a precision survey of the seafloor topography, and an acoustic Doppler current profiler (ADCP).
The Kaiyo has produced excellent results through its structural surveys of the deep sea bottom in the seas around Japan, and it has discovered a huge seamount in the Nankai Trough.
Nippon Marine Enterprises was commissioned to operate and manage the Kaiyo in 1985.

Research vessel Kaiyo Research vessel Kaiyo
Research vessel Kaiyo Research vessel Kaiyo
Research vessel Kaiyo Research vessel Kaiyo

Overall length: 61.6 m
Beam: 28.0 m
Height: 10.6 m
Draft: 6.3 m
Gross tonnage: 3,385 tons
Cruising speed: Approximately 13 knots
Range: Approximately 10,800 miles
Accommodation: 60 (29 crew and 31 researchers)
Completion: 1985
Port of registry: Yokosuka
Building dock: Chiba site of Mitsui Engineering & Shipbuilding Co., Ltd.

Click here to see a photo gallery of the research vessel Kaiyo.
Nippon Marine Enterprises, Ltd.
Nippon Marine Enterprises, Ltd.
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