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Utility Navigation

Marine Operations


Okeanos Explorer Specifications (OMAO , pdf, 1023.53 KB)

Design Specifications
Designer Halter Marine
Builder VT Halter Marine, Inc.,
Moss Point, Mississippi 
Launched October 28, 1988 
Delivered September 10, 2004
Commissioned August 13, 2008 
Length 224 ft.
Breadth 43 ft.
Draft 16.83 ft. Bow Thruster retracted
20.08 ft. Bow Thruster lowered 
Depth to Main Deck 5.92
Hull Description White
Displacement 2062 tons
Speed & Endurance
Emergency Speed 12
Cruising Speed 10 knots
Range 9600 nm
Endurance 40 days
Endurance Constraint Food
Maximum Complement
Commissioned Officers/Mates 6
Engineers, Licensed 3
Engineer, Unlicensed 3
Deck 7
Survey 2
Stewards 3
Electronic Technicians 2
USPHS Medical Officer 1
Total Crew 27
Scientists 22
Single Staterooms 12
Double Staterooms 13
Four-person Staterooms 2
Total Berths 46
Food Service Seating Capacity
Forward Mess Room 8
Aft Mess Room 20
Third Mess 10
Ship's Navigational Equipment
Radars (X and S Band) S-band Furuno/FAR 2837S/Bridge
X-Band Furuno/FAR 2827X/ Bridge 
GPS and DGPS Furuno/GP-150/Bridge (Both models) 
Gyro Compass SG Brown Meridian/TSS/Bridge 
Deepwater and Shallow Navigational Echosounders Furuno/FE-700/Bridge 
ECDIS Transas/Navi-Sailor 4000/Bridge 
AIS Furuno/FA-150/Bridge 
Scientist's Navigational Equipment
GPS and DGPS C-Navi Gator GPS and GPS from SCS 
Gyro Compass Gyro repeater from SCS 
Deepwater and Shallow Navigational echosounders EK-60 from SCS 
ECDIS Display of bridge ECDIS via video feed 
Charting Program with Ship’s Position Nobeltec 
Laboratory Spaces and Other Scientific Spaces
Wet Lab 01 Deck 260 Area available for wet operations, chemical samples, etc. 
Dry Lab 01 Deck 132 Survey space with scientific computers and counter space 
Electronics/Computer Lab 01 Deck 216 Control room for ROV, mapping, and scientific operations 
Climate Controlled Space  01 Deck 140 Computer server, network, and data storage room, must maintain cool temperature for electronics in this space 
Staging Bay Main Deck 320 ROV hangar, stores ROV and equipment 
Dry Lab Main Deck 128 ROV workshop, provides counter space for ROV related work/repairs 
Scientific Data Collection Systems and Supportable Operations
Conductivity, Temp., Depth (CTD) With Water Samples Seabird SBE 9-11 Plus CTD 
Multibeam Equipped for Hydrographic Surveys Kongsberg EM-302 
Thermosalinograph SBE-45 FastCat Micro 
Expendable BathyThermographs (XBT) Capable  Deep Blue/Sippican MK-21 XBTs 
Dive Team Equipped 4 person working diver team aboard 
Single Side Scan Equipped SIMRAD EK-60 
Remote Operated Vehicle (ROV) Equipped Deep Discoverer and Seirios 
Scientific Computer System Equipped SCS v4 
Knudsen CHIRP  Sub-bottom profiler 
Applanix POS/MV 320 Location, heading, attitude 
Data Collected by the Ship's Scientific Computer System (SCS) in the Standard Configuration
DescriptionUnitsData Source
VWR - Relative wind speed and angle  KTS  RM Young Wind Sensors 
GLL - Geographic Position (Lat/Lon)  Lat/Long  DGPS Satellites 
MTW - Mean Temp. for Water  Deg. C  Thermosalinograph 
HDT - Heading (True)  Deg.T  Gyrocompass 
OSD - Own Ship Data (Ship course & speed)  Deg.T/ KTS  Ship input/GPS 
ZDA - Time and Date (UTC. d. m, yr, TZ)  Time  GPS 
Digital barometer  mB   
ROV environmental data  Deg.C/ m   
Digital air thermometer  Deg.C  
Doppler speed log  KTS  
Tensiometers for all cranes/winches  lbs.   
Flourometer (measures chlorophyll)  µg/L   
Relative humidity   
Sound velocity probe  m/s   
TypeHPLengthMax. PersonsComments
Rescue Boat (SOLAS Approved)  250 22 9 Willard 670 SOLAS Fast Rescue Boats (FRB), Jet drive propulsion 
Rigid Hull Inflatable Boat (RHIB) 250 22 9 Willard 670 SOLAS FRB, Jet drive propulsion 
Additional Capabilities
Dynamic Positioning Capable Beier IVCS 2000
Compressed Air Used for filling SCBA bottles and SCUBA diving cylinders 
Dynamic Positioning Capable Kongsberg K-POS DP-11, ship operates using dynamic positioning during ROV and various other operations. 
Access to Clean Electrical Power  Ship provides clean power in various locations for sensitive electronic equipment 

Deck Equipment

Winch – (General Purpose)
Quantity 1
Manufacturer Markey
Model COM-10V 
Drive 460V, 3-Phase, 60 Hz, 7.5 HP, 1200 RPM
Max. Pull 3,300 lbs.
Max. Depth  
Drum Capacity 3,000m of 0.25" Galvanized wire rope 
Type of Cable Installed Galvanized wire rope 
Length of Cable on the drum  
Location O-2 Deck, Starboard Aft of EX-1
Winch – (Oceanographic)
Quantity 1
Manufacturer Markey
Model DESH-5
Drive Electric motorAC Vector Drive, automatic brake 
Max. Pull 15,000 
Drum Capacity 8,000 m of 0.375" electro-mechanical cable
Type of Cable Installed .375” electromechanical cable 
Length of Cable on the drum  
Location O-2 deck above ROV hanger
Winch – Traction (ROV Ops)
Quantity 1
Manufacturer Dynacon
Model 766
Drive Electro-Hydraulic Power Unit
Max. Pull 20,000 SWL lbs
Drum Capacity 10,000m of .681" fiber optic power cable
Type of Cable Installed 8,000m of .322" conductor cable
Location 2 Deck Aft of propulsion space
Crane, Aft Working Deck Crane
Quantity 1
Manufacturer Hydra Pro
Model HP46/18KE
Boom Length 46 ft.
Lifting Capacity 12,000 lbs. at 20' radius 
Location Aft working deck, Starboard
Crane, ROV Crane
LIFTING CAPACITY 14,000 at 15' radius 
LOCATION Aft working deck, Port
A Frame
Quantity 1
Type Moveable
Clearance over the Side 12 ft.
Horizontal Clearance 15 ft. on deck
Safe Working Load 20,000 lbs.
Location Working Deck Aft 
J Frame
Quantity 1
Type Moveable
Clearance over the side 8 ft.
Safe Working Load 3500 lbs.
Location O-1 Deck Starboard 
Boat Davit
Quantity 2
Manufacturer Vestdavit 
Model PLR Steel, AFrame FCR 
Hoisting Capacity 7,900 lbs. 
Location O-2 Deck Port /Starboard 
Boat type RHIB
Anchor - Bow
Quantity 2
Type Stockless, bower
Weight 3,762 lbs.
Port Anchor Chain Length 120 fathoms
Starboard Anchor Chain Length 105 fathoms

Medical Facilities

One medical treatment room containing one berth for patients. Emergency and first-aid equipment aboard, administered by MedPIC. USPHS medical officer onboard.

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Reviewed: January 9, 2018. Contact us with page issues.

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