TWR-841
Principal Characteristics


Length, 120 feet
Beam, 25 feet
Draft, 12 feet (to clear transducer)
MFG: Marinette Marine Corp.
Built: October 1986
Gross regulatory tonnage 248
Length, design load waterline 111'-0"
Fresh water capacity (approx.) 5200 gallons
Fuel oil capacity (approx.) 8000 gallons
Maximum speed (calculated) 12 knots
Fuel consumption approx. 50 GPH @ 10 knots
Maximum height (approx.) 42 feet
Minimum speed 4 knots

Machinery

Main engines: Twin Caterpillar D3512, 2350 BHP @ 1600 rpm
Hydraulic Transmission: 10 : 1 RA, Caterpillar MDL# 7241

Equipment

Stern U-frame: Contractor fabricated, 5,000 lb. capacity. Will coordinate with SEA-MAC winch. Drum capacity: 5,000 feet of 1/2 inch wire: Full drum line pull: 5,000 lbs. Dimensions - 16 feet high x 7 feet wide, 9 feet over stern.
Deck Crane: Appleton 4,000 lb knuckle-boom, self contained 25 HP electro-hydraulic power pack and controls. 24 foot reach, 4,000 lbs. at all angles.
Torpedo recovery winch and transfer carriage, (3,000 lb)
Pinger Pole: Allows heavy transducers to be deployed over the side.
Capstan: Ideal Windlass, MDL # AB-5, 3,800 lb. pull @ 30fpm on starboard stern.
SBE 19 Plus Seacat CTD Profiler: SBE 19plus deployable unit, laptop, and over the side winch. Sensors for direct measurement of Conductivity, Temperature and Pressure. The maximum depth of 100 meters can be increased with a pressure sensor option.
Portable Van:  8 feet wide x 20 feet long x 8 feet height - Electronics rack, 220 VAC, A/C and Heater, Lights and Tables

Communications

2 VHF Marine, VHF NUWCNET
UHF, RT – 980A/GRC-171(V)
WQC-2/C-7440A Underwater Telephone
HF SSB, ICOM IC-M810
MARINESAT satellite Telephone
Cellular Phone

Electrical Power

Two Diesel generator sets, Caterpillar D3304, each rated 80 KVA 440 VAC, three phase.
Van/Deck connections: 100 amp, 440 VAC, three phase receptacle; 50 amp, 208 VAC, three phase receptacle; 30 amp, 120 VAC receptacle.

Electronics

NMEA 2000 Weather Station
Furuno FAR2127 BB Radar
Furuno FCU1150 Depth Sounder
Furuno DRS12A Digital Radar
2 Northstar LORAN
1 Leica MX 400 DGPS
1 Magnavox MX4200 DGPS
1 Magnavox MX-50R DGPS
PC - Visual Navigation Suite
GYRO, MK 27 MOD 1, with NEMA 0183 output
Furuno 7403 Sirius WX Receiver
AIS

Science Capabilities

Science mission payload is approximately 17 tons (12 Heavyweight torpedoes)
Science vans up to 20 feet in length can be accommodated
Capacity: 10 passengers + 8 crew
Reconfigurable transducer/equipment mounts; seawater profiler (see SEACAT under EQUIPMENT above)
Interior of vessel is air conditioned/heated
Work deck area – Overall 51 x 25 feet; torpedo rollers are replaced with fiberglass grating to provide for clear deck OPS, when required.
Service boat: Zodiac – 8 feet length/6 HP-OB, or larger RHIB or Whaler.