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Vessel Data and Contact Information for the

Last Updated - 2/14/2005
Main Activities
Capacities & Workspaces
Range, Speed, Endurance
DP Equipment
CTD Specs
Coring Specs
Underwater Vehicles
Diving Capabilities
Engineering Design
Navigation & Communications
Acoustics & Profiling
Winches, Gantries & Cranes
Country: Japan

NODC Code:

    Call Sign: 7JWN
Owner: Ministry of Land, Infrastructure and Transport
Operator: Hydropraphic and Oceanographic Department, JCG
Address: S/V Operation Office
Hydrographic and Oceanographic Information Department, JCG
5-3-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
Telephone: +81-335-413-685
Fax: +81-332-481-250
Year Built: 1983
Ship URL: Link to Ship Home Page

Ship Schedule URL:


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Main Dimensions

  Length OA: 96  m
  Breadth: 14.2  m
  Freeboard to working deck: Unknown
  Max. draft: 4.91  m

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Main Vessel Activity

  Main Activity: Surveys on Hydrography, Oceanography, Geodesy, Geophysics, Marine Pollution, Meteorology
  Operating Area: Northwest Pcific Ocean
  Navy Grids Supported:

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Capacities and Working Spaces

  Gross tonnage: 2600  GRT
  Dry cargo holds: Unknown
  Fuel: 640.36  m3
  Wet Labs Area: Unknown
  Dry Lab Area: Unknown
  Fresh Water
 Storage Capacity:
315.27  m3
  Fresh Water Generator Capacity: Unknown
  Scientific Clean Water Generation: no
  Free Working Deck Area: Unknown
  Space for container lab: Unknown
  Radioactive Isotope Work Areas: yes  m

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Range, Speed and Endurance

  Range: 12000  nautical miles
  Cruising Speed: 16  kts.
  Max. Speed: 17  kts.
  Endurance: 15  days

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  Officers: Unknown
  Other crew: 38
  Scientists: 23
  Air Conditioned:  No

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Data Processing Equipment:

  Computers: yes
  Printing/Plotting: yes

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CTD Specifications:

  CTD Aboard: CTD and XBT
  CTD Type: MK-2B
  CTD Tow able: yes
  CTD Oxygen Sensing: no
  CTD Transmissivity: no
  CTD Fluormeter: no
  CTD Rosette: yes

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Coring Specifications:

  Coring Capabilities Aboard: Unknown
  Grab Sampler: no
  Box Corer: no
  Gravity Corer: no
  Piston Corer: no
  Multi Corer: no

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Underwater Vehicle Capabilities:

  Underwater Vehicle Support: no
  ROVs: no
  AUVs: no
  Submersibles: no

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Diving Support:

  Diving Capabilities: no

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Engineering Design Particulars


Ice Breaking Ability:


Hull Materials:

  Dynamic Positioning Ability: Unknown
  Engines: Main engine(s): number:  Unknown   make:  Fuji 8S40B
Power (BHP) each engine:  Total 5200ps
Propeller Diameter:  2.3   m Max. RPM:   320
Total power auxiliary diesels:  Unknown
  Electrical Systems:  


 Voltages: 0/450V 0/450V
     kVA: 400/165
    Phases: 3/3



Stabilized System:  Unknown  VAC  Unknown  AMPs   Unknown  Hz



  Unknown   Volts with  Unknown  Volts Max


Fixed Equipment

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Navigation and Communication:

  Navigational Equipment: Radar SatNav Gyro Loran
  Communications Equipment: SatCom Fax
  Satellite Communications Equipment: yes
  GPS: Hybrid positioning system

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Acoustics and Profiling:

  Echosounders: CESP IV, 12 KHz
  Sonar Type: Unknown
  Sea Surface Mapping System: yes
  Side Scanning: no
  Multibeam: Narrow multi-beam echo sounder
  Acoustic Doppler Current Profiler: yes
  Silent Ship Operations: Unknown

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  Winches: 6  
    Steel Wire Length: 10825  m,  safe working load:  3  tons
    Conducting Cable Length:  5545  m , safe working load:  1.2  tons
    Trawl winch length:  Unknown , safe working load:  Unknown
    Other Winches:
      Length:  8000  m , safe working load:  3.8  tons
  Gantry: Position: Unknown

Clearance above deck:  Unknown , and outboard extension:  Unknown


Safe working load at maximum reach:  Unknown

  Crane: Position: Stern

Clearance above deck:  Unknown  and outboard extension:  Unknown


Safe working load at maximum reach:  3  tons

  Other:   Winch for Armered Cable connected CTD

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Vessel Construction and Maintenance Supervision

  Construction Supervised by: Nippon Kokan Co., Tsurumi shipyard, Japan
  Classification Society: Unknown
  Others, Specify: Unknown
OCEANIC - Ships Schedules & Information Pages
University of Delaware, College of Earth, Ocean, and Environment
Lewes, Delaware  19958
Phone:  (302) 645-4225