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. The R/V Langseth replaces the R/V Maurice Ewing, which ended a distinguished career in early 2005.
The R/V Marcus G. 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 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.
The R/V Marcus G. Langseth began science operations offshore Costa Rica in February 2008.
|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|