R/V Gulf Surveyor

R/V Gulf Surveyor is a state-of-the-art platform for hydrographic research, and the newest addition to the Center’s fleet. She is a 48-foot, twin screw, geared diesel, propeller driven catamaran built by All American Marine (Bellingham, WA) in 2015, and commissioned in January 2016. Her aluminum hull utilizes the Technicraft design, providing a balanced combination of stability and comfort in a variety of sea states.

She is Coast Guard certified to carry up to 18 passengers on a Coastwise Route in the Gulf of Maine (not more than 20 nautical miles offshore). 

Video Tour


Gulf Surveyor has a top speed of ~18kts and cruises at ~14kts. Her minimum operating speed is ~3kts while towing scientific gear. Speed is limited to ~8kts during survey operations depending on the sonar mounted.

Deck Equipment

  • Retractable transducer strut that vertically articulates through a ~35” x ~69-15/16” moon pool door
  • Morgan Marine Model 300.4 Hydraulic Crane
  • DT Marine Model DT5005EHLWR electro-hydraulic winch
  • A-Frame (SWL 2000 lbs)
  • Universal Sonar Mount Foil Z-pole
  • Davit (200 lb capacity) with open block and motor assisted windlass
  • Capstan winch
  • (2) Swim platforms with dive ladder and tank rack

For R/V Gulf Surveyor questions, scheduling, and rates, please contact Capt. Matt Rowell at CaptainMatt@ccom.unh.edu

The bow of the RVGS.
RVGS's A-frame.
View of the bow
Moon pool on the RVGS.
Running survey lines
Lab space aboard the RVGS.
Pier at Coastal Marine Lab
The bridge of the RVGS.
Bow ram mount, lowered
The stern of the RVGS.

Boat Specifications

Dimensions: 48' (length) x 17'-7" (beam)  x 5'6" (draft)
Air Draft: 23'-9"
Flag: U.S.
Home Port:  New Castle, New Hampshire
Registry: Lakes, Bays, and Sounds plus Limited Coastwise
Official Number: 1266419
Lightship Displacement: 17.29 Long Tons
Lab Space: ~12.5' x 9.5'
Top Speed: 18 knots
Propulsion: 2 x Cummins QSB6.7 diesel, 250 mhp @ 2600 RPM, fixed 5-blade propellers
Shipboard Power: 21.5 KW Cummins Onan, 120/240 V AC
Fuel Capacity: 300 Gallons
Potable water: 50 U.S. gallons
Navigation GPS: Simrad GS25
Navigation Transducer Garmin GT-41 
Fluxgate compass: Simrad RC42 Rate Compass
Radars: Simrad DX64s Radar, Simrad Broadband 4G Radar
Autopilot: Simrad AP70
VHF Radio: 2x iCOM IC-M4240
AIS: Si-Tex Metadata Class B 
Speed/Wind Sensor  Airmar 200WX
Navigation Software: Rose Point, Coastal Explorer
Acoustic Doppler Current Profiler (ADCP)  RD Instruments WH Mariner 600 kHz Coastal Vessel Mounted DR
Single Beam Transducer: Odom THP 200/24-4/20 
RTK GPS Receiver: Trimble Trimark 3
Survey GPS Antennas: 2 x Trimble Zephyr Antennas
Positioning and Attitude Sensor: Applanix PosMV V5 with IMU Type 65 
Data Acquisition Software: Hypack, QINSy