R/V Marcus G. Langseth Vessel Description
The R/V Marcus G. Langseth is a 235 ft, 3834 gross ton research vessel which is owned by the National Science Foundation and operated by Lamont-Doherty Earth Observatory of Columbia University. Langseth replaces R/V Maurice Ewing , which ended a distinguished career in early 2005.
Langseth is classed by the American Bureau of Shipping as A-1 Baltic Ice Class IA and Coast Guard inspected; certificated to carry a total of 55 personnel of which approximately 20 are the ship's crew.
Originally constructed as a seismic vessel the Langseth was acquired in 2004, modified, and outfitted to perform the tasks required of a general purpose research vessel. This includes hull mounted 3.5 and 12 khz transducers and a Simrad 1x1 degree deep ocean multibeam swath bottom mapping system.
Particularly unique to the academic research vessel are the Marcus Langseth's extensive geophysical capabilites which include a Syntrak 960-24 seismic recording system with four 6km solid-state hydrophone streamer cable and a 2000 psi, 40 pneumatic sound source array towed in four " strings" that can be configured either as a single, 2D source or dual, alternating 3D source arrays.
R/V Marcus G. Langseth began science operations offshore Costa Rica during February - March, 2008.
Specifications
Built: | 1991 | Speed Cruising: | 11kts |
Yard Built: | Ulstein (Norway) | Speed Full: | 13kts |
Length (LOA) | 71.5m / 235 ft | Speed working: | 0-11 kts |
Beam(moulded): | 17.0m / 56 ft | Endurance | Job dependent |
Draft(max): | 5.9m/ 19.5ft | Range | 13,500 nm |
Gross Tonnage: | 3834 | Fuel capacity | 1340m3 (353760 gal) |
Lightship Displacement: | 2578.4 | Fuel Type; | Marine Gas Oil |
Crew | 20 | Bollard Pull | 86.2 mt |
Scientific Personnel: | 35 | Laboratory, existing: | |
Call Sign | WDC6698 | Seismic Lab | 218 m2/ 2345 ft2 |
IMO Number; | 9010137 | Other labs | |
Registration: | NY3360FG | Main Dk Stbd Dry Lab | 53 m2/570 ft2 |
Main Dk Stbd Wet Lab | 57 m2/613 ft2 | ||
Main Deck Pt Dry Lab | 54 m2/ 581 ft2 | ||
A-Deck Fwd Dry Lab | 22 m2/ 237 ft2 | ||
A-Deck Aft Dry Lab | 21 m2/ 226 ft2 | ||
Propulsion | Geared Diesel | Propeller | 2 x Ducted Variable Pitch |
Main Engines | 2 x Bergen BRG-6 | Ulstein 4 blades | |
2650kw /3550 hp (each) | Rudder | 2 x High Efficiency | |
Main Generators | 2 x Shaft Generators | Becker Articulated | |
1665 KVA each | Seismic Air Source | 2 x Ariel JGK4 | |
Harbor Generator | 1 x Diesel Generator 720 kw | Seismic Air Capacity | 2750 CFM @ 1950 psi each |
Bowthruster | 1 x Tunnel 590 kw/ 800 hp | ||
Ownership | The National Science Foundation | ||
Operator | Lamont-Doherty Earth Observatory of Columbia University | ||
Classification: | ABS- A-1, Ice Class 1C, AMS |
Science Equipment
MCS Acquisition |
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Hydrophone arrays |
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Source Arrays |
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Source Controller |
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MCS geometry sensors |
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MCS Navigation |
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MCS QC |
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Communications |
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Multibeam / Echsounder |
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Marine Mammals Observation/ Mitigation |
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General |
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