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Vessel Data and Contact Information for the
Ronald H. Brown

Last Updated - 7/11/2018
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: USA

NODC Code:

    Call Sign: WTEC
Owner: National Oceanic and Atmospheric Administration
Operator: NOAA's Office of Marine and Aviation Operations (OMAO)
Contact: Frederick W. Rossmann
Address: NOAA - OAR
1315 East-West Highway Rm 11458
Silver Spring, MD 20910
Telephone: 301-713-2465 ext 184
Fax: 301-713-0158
Year Built: 1997
Ship URL: Link to Ship Home Page

Ship Schedule URL:

Ship Schedule via its Home Page

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Main Dimensions

  Length OA: 83.5  m
  Breadth: 16  m
  Freeboard to working deck: Unknown
  Max. draft: 5.2  m

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Main Vessel Activity

  Main Activity: Oceanographic and Atmospheric research
  Operating Area:
  Navy Grids Supported:

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Capacities and Working Spaces

  Gross tonnage: 3250  GRT
  Dry cargo holds: Unknown
  Fuel: 965  m3
  Wet Labs Area: 21.4  m2
  Dry Lab Area: Unknown
  Fresh Water
 Storage Capacity:
48.1  m3
  Fresh Water Generator Capacity: 37.9  m3/day
  Scientific Clean Water Generation: Evaporators
  Free Working Deck Area: Unknown
  Space for container lab: Unknown
  Radioactive Isotope Work Areas: Unknown

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Range, Speed and Endurance

  Range: 11300  nautical miles
  Cruising Speed: 12  kts.
  Max. Speed: 15  kts.
  Endurance: 60  days

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  Officers: 5
  Other crew: 16
  Scientists: 30
  Air Conditioned:  Yes

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Data Processing Equipment:

  Computers: 14 Gateway NT workstations, four NT 4.0 Gateway servers
  Printing/Plotting: Unknown

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CTD Specifications:

  CTD Aboard: Seabird Electronics Model 9/11+ CTD system in a 12-position rosette frame with a seabird SBE-32 submersible array firing assembly
  CTD Type: Unknown
  CTD Tow able: Unknown
  CTD Oxygen Sensing: Unknown
  CTD Transmissivity: Unknown
  CTD Fluormeter: Unknown
  CTD Rosette: Unknown

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Coring Specifications:

  Coring Capabilities Aboard: Unknown
  Grab Sampler: Unknown
  Box Corer: Unknown
  Gravity Corer: Unknown
  Piston Corer: Unknown
  Multi Corer: Unknown

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Underwater Vehicle Capabilities:

  Underwater Vehicle Support: Unknown
  ROVs: Unknown
  AUVs: Unknown
  Submersibles: Unknown

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Diving Support:

  Diving Capabilities: Unknown

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Engineering Design Particulars


Ice Breaking Ability:


Hull Materials:

Welded Steel, ice strengthened
  Dynamic Positioning Ability: Simrad Robertson Dynamic Positioning System
  Engines: Main engine(s): number:  2   make:  Diesel El
Power (BHP) each engine:  3000 at
Propeller Diameter:  3.2   m Max. RPM:   Unknown

Total power auxiliary diesels:  Unknown
  Electrical Systems:  


 Voltages: 120/480
     kVA: Unknown
    Phases: 1/3



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: Two Sperry Rascar Touch Screen navigational radars on the bridge. One radar is an S-band (10 cm) 30 kW radar and the other is an X-band (3 cm) 25 kW radar, Gyro Compass, Nobeltec's Visual Navigation Suite, Knogberg Simrad SPS, Doppler Speed Log, Navt
  Communications Equipment: High Frequency SSB (SEA 330), VHF Radios, Cell phone
  Satellite Communications Equipment: INMARSAT-A (voice and fax), INMARSAT-M (voice), INMARSAT-B, Standard C, Iridium Satellite phone, e-mail
  GPS: Trimble Centurian P-code GPS, a Magnavox MX-200 GPS, and a Northstar 941x differential GPS

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Acoustics and Profiling:

  Echosounders: Unknown
  Sonar Type: Raytheon DSN-450 Doppler Sonar
  Sea Surface Mapping System: Unknown
  Side Scanning: Unknown
  Multibeam: Kongsberg EM-122 @ 12kHz w/ 150deg swath
  Acoustic Doppler Current Profiler: RD Instruments (RDI), Model VM-150-18HP, 153.6 KHz narrow band acoustic doppler current profiler
  Silent Ship Operations: Unknown

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  Winches: 3  
    Steel Wire Length: 10000  m,  safe working load:  4  tons
    Conducting Cable Length:  7500  m , safe working load:  Unknown
    Trawl winch length:  Unknown , safe working load:  Unknown
    Other Winches:
      Length:  Unknown , safe working load:  Unknown
  Gantry: Position: Unknown

Clearance above deck:  Unknown , and outboard extension:  Unknown


Safe working load at maximum reach:  Unknown

  Crane: Position: 02 Level, Port, Amidships, and Main Deck, Starboard, Aft

Clearance above deck:  15.24  m  and outboard extension:  Unknown


Safe working load at maximum reach:  21  tons

  Other:   Unknown

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Vessel Construction and Maintenance Supervision

  Construction Supervised by: Halter Marine, Inc., Moss Point, Mississippi, USA
  Classification Society: Unknown
  Others, Specify: IMO# 009105786
OCEANIC - Ships Schedules & Information Pages
University of Delaware, College of Earth, Ocean, and Environment
Lewes, Delaware  19958
Phone:  (302) 645-4225