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Military


TAGS 60 Pathfinder
Survey Ship

Specifications
Builder Halter Marine Moss Point, Miss
Power Plant Diesel-electric;
4 EMD/Baylor diesel generators; 11,425 horsepower (8.52 MW);
2 GE CDF 1944 motors; 8,000 horsepower (5.96 MW) sustained; 6,000 horsepower (4.48 MW);
2 Lips Z drives; bow thruster, 1,500 horsepower (1.19 MW)
Length329 feet
Beam 58 feet
Draft 19 feet
Displacement Displacement at Full Load 5,000 LT
Lightship Displacement 3,019 LT
Speed 16 knots
Station Keeping 300 foot radius with 2 Kts current, 27 Kts wind
Endurance 12,000 NM @ 12 Kts Plus
29 days @ 3 Kts with 10% Fuel Reserve
Crew Total Accommodations 55
Officers and Crew 25
Scientists 27
Spares 3
Aircraft none
Mission Electronics Multibeam Echo Sounding System
(SIMRAD Inc. EM121A) is a 12 kHz, 121 beam, 1 degreee bathymetric sonar system capable of hydrographic charting in waters from 10 -11,000 meters real time with pitch, roll, heave, and azmimuth correction (see graphic).

Deep/ Shallow Water Echo Sounder System
(ODEC BATHY-2000) is configured as a 12/33 kHz system which provides single beam data for depths to 12,000 meters for check the accuracy of the multibeam center beam information.

Sub-bottom Profiler
(ODEC BATHY-2000) is configured as a 3.5 kHz wide beam shallow penetration system which in water depths to 10,000 meters is capable of determining sea bed morphology (external structure of rocks in relation to erosion of topographic features) and sediment profiles to 50 meters, and compensating for ship motion.

Seismic System
(DWS International Inc.) is a deep penetration sub-bottom profiling system which generates and receives acoustic impulses from a towed sound projector to map geological formations. Applications include marine geology, geophysics, topography, and bathymetry surveys.

Acoustic Doppler
Current Profiles (RD Instruments VM-0150) is a 150 kHz system which provides profiles of ocean current speed and direction at depths to 380 meters, the backscatter echo level of the returns from those levels, bottom depth, and vessels true ground speed.

Expendable Sensor Subsystem
(Sippican) launches and monitors various sensors including Expendable BathyThermograph (XBT) and Expendable Sound Velocity Profiles (XSV). Systems support multipurpose oceanography surveys and provides correction to sonar systems for speed pf sound through water columns.

Magnetometer
(E#G&G G811/813) uses magnetics for mapping of the earth's magnetic field.

Conductivity, Temperature Depth System
(Falmouth ICTD) provides full ocean profiles of conductivity and temperature versus depth for depths of up to 7,000 meters and supports most oceanographic surveys.

Water Sampler Subsystem
(General Oceanic) operates with the CTD to collect water samples in depths to 7,000 meters using a rosette sampler, niskin bottles, and a (Guideline Portasal 8410) salinometer.

Bottom Transponder Navigation System
(Benthos Inc. DS-7000-16) is a 5 to 50 kHz real time navigation system for positioning the ship with regard to a fixed acoustic Deep Licean Pinger (Datasonic BFP-312) transponder network.

Acoustic Release System
(EG&G 8011A) provides command and control to activate, interrogate, release, and locate deep ocean pingers.



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