Section 2: Specifications

Navigational capabilities: Has Trimble Tansmon P-code GPS and Trimble NT 200 DGPS as primary navigation and inputs to dynamic positioning, ODEC Doppler speed log and EDO DO2 axis Doppler speed log, Sperry 3 and 10 cm radars, Robertson dynamic positioning system, Ashtech ADU GPS attitude-sensing system, Simrad Taiyo ADF, Nautronix RS916 combined short- and long-baseline acoustic positioning system, and 2 Sperry gyros.

Winches: Markey DUTW-9-11 traction-drum winch with dual storage drums. Normally 15,000 m of 9/16" 3 x 19 trawl wire is on one storage drum and 10,000 m of 0.680" electromechanical cable on the other. Wires over the side lead to A-frame or main deck crane. Capable of fiber optic cable through A-frame.

Two Markey DESH 5 hydrographic winches, one with 10,000 m of 1/4" 3 x 19 hydrographic wire, one with 10,000 m of 0.322" three-conductor electromechanical CTD cable on Lebus grooving. Wires lead over starboard side via retractable hydroboom.

Assorted portable winch and wire combinations available for cruise-specific requirements.

Support equipment: Main cranes (North American) on starboard quarter, main deck and on port side, 02 level. Smaller Morgan Marine cranes (2), normally on foredeck and at other locations to suit mission. Fritz-Culver A-frame at stern, retractable hydroboom on starboard side by staging bay door.

Extensive (~3,000) bolt down fittings for securing removable equipment on all decks and inside laboratories (2' X 2' pattern).

Uncontaminated seawater supply to all labs.

Through-hull instrument well in staging bay, nominal 24" diam. tube.

Two installed Price A300 compressors provide 1850 psi air for seismic work.

Permanent and removable scientific equipment: 12 kHz SEA BEAM 2112 multi-beam echosounder with 120° swath-width to 4500 m depth, reducing to 90° at depths of 11 km, providing bathymetry and sidescan imagery. ODEC Bathy 2000 and Knudsen Engineering 320B 3.5/12 kHz digital sub-bottom profiler. Geometrics magnetometer, Sippican Mark 12 digital XBT. RDI 150 kHz broadband and narrowband ADCPs. IMET meteorological and sea surface data system.

Extensive data communications and network (SIS - Science Information System) exists, with ethernet and audio/video connections in laboratories and science staterooms. Both fiber optic and copper wire links are used. Shipboard computer system consists of two SUN Ultra-2 servers (Solaris UNIX) with over 40 Gbytes of disk; CD-ROM, DAT and Exabyte tapes; numerous SPARCstation-5's, PC's and Macs for users; various printers and plotters.

The ship has a fine adjust temperature-controlled laboratory to facilitate chemical analyses, also freezer and temperature-controlled walk-in chambers for sample storage/preparation.

Use of isotopes is prohibited in ship's laboratories. Isotope isolation vans are available by request.

An extensive inventory of instrumentation and technical services is available, e.g., dredges, coring equipment, plankton nets, trawls, CTD/rosette systems, MOCNESS systems, single and multichannel seismic systems, submersible strobes and transmitters, etc. A user fee to recover expenses for operating supplies, calibration, maintenance and repair is typically charged for each of these.

Vans: Numerous vans can be carried, on main deck (with access to hydro lab), 01 level port side, forward on 02 deck (for storage).

Communications: Inmarsat satellite voice and data, VHF, HF radio, SSB voice, teletype, GMDSS. Please see our contacts web page for current phone numbers.

An Inmarsat email link through the scientific Sun servers is available and can be accessed on the ship's network. Prior authorization is required for its usage since users are charged for all of their incoming and outgoing messages (above a nominal complimentary monthly allowance).