Built by: Nauta Shiprepair Yard S.A. in Gdynia, Poland 2013-2020, completed at Falkvarv in Falkenberg, Sweden 2020-2021
Named after: an arm of the North Sea
Owner: University of Gothenburg, since 2020
Management company (staffing and technical operation): Northern Offshore Services
Company (organisation responsible for duties according to ISM-code): Northern Offshore Services
Length over all (L.O.A.): 49.1 m
Width: 11.00 m
Max. draft (draught, incl. blister): 4.13 m
Gross tonnage: 916
Freeboard, working deck: 2.1 m
Main engines: 4 • Volvo-Penta D16, diesel-electric operation, propeller engine 1120 kW
Electricity: Power outlets for 400 V 125 A (for ROV), 400 V 32 A and 230 V 16 A (on deck and in hangar), 230 V 10 A in the laboratories.
Speed: Service speed 11,5 knots, max. speed approx. 14 knots
Range: Sea area A (all seas)
Time at sea: up to 3 weeks, normally 2-5 days
Fuel: 86 m3
Fresh water: 46 m3, as well as possibility to produce fresh water on board
The bridge is equipped with a pilot-copilot system, i.e. with place for two navigators. The equipment consists of, for example:
- 2 radar systems
- Full ECDIS, paper nautical charts are not needed
People on board
There are 12 cabins on board, of which 5 single cabins, 5 two-person cabins and 2 three-person cabins.
Crew and special personell
Normally 5-7 persons depending on length and purpose of expedition.
Numbers depends on length and purpose of expedition.
Cabins can be used as below, depending on the duration and nature of the expedition.
- 5 crew members + 16 scientists
- 6 crew members + 14 scientists
- 7 crew members + 12 scientists
On day trips a larger number of special personell can be on board.
As the vessel is regarded as a cargo ship (with SPS certificate) it may bring max. 12 passengers. To bring more than 12 persons, except the crew, all these need to have a familiarity training.
The vessel is classified and certified as a Special Purpose Ship. Currently, maximum number of persons on board is 22 (incl. crew). The intention is to increase this number. The intention is also to achieve a Polar Ship Certificate, which means the vessel is allowed to operate in Arctic waters with moderate ice conditions (basically ice-free water).
Equipment and laboratories
Deck lifting equipment:
- Moveable A-frame: reach 7 metres, 8 tonnes at 7 metres
- CTD-/hydrographic frame: LARS (launch and recovery system), 3 tonnes at 3 metres
- Two electric general purpose winches: 2000 metres (16 mm) wire, 2 tonnes
- Oceanographic winch: 2000 metres (12 mm) fiber-optic and electric cable, 4 tonnes
- CTD/ROV-winch: 4000 metres (8.3 mm) fiber-optic and electric cable, 4 tonnes
- Plankton winch: 1000 metres (6 mm) kevlar line, 2 tonnes
Instruments on board
- CTD (Sea-Bird SBE 911) incl. turbidity, fluorescence, transmission, oxygen and PAR
- Rosette water sampler (SBE 32, 24 bottles)
- Ship mounted ADCP (RDI; 150/600 kHz)
- Weather station (Aanderaa AWS 2700).
Hydroacoustic equipment: Multibeam echo sounder EM2040 Kongsberg
Subbottom profile: TOPAS Kongsberg
Underwater positioning system: HIPAP Kongsberg
- Sea water laboratory, 9 m2
- Atmospheric laboratory, 11 m2; mainly for studies of atmosphere and air
- Dry laboratory, 13 m2; work places, fume hood
- Main laboratory, 29 m2; fume hood, chemical storage area, work places
- Hangar, 38 m2; deploy area for CTD etc., space for sorting of samples
- CTD room, 9 m2; work places for control of LARS & CTD-winch
All laboratories except Atmospheric Laboratory and Dry Laboratory have access to sea water.
Free working area, aft deck: Approx. 110 m2
Communication equipment according to SOLAS-standards, completed with:
- VSAT equipment for communication and data traffic
- Iridium telecommunication
- Telephone modem for data and telecommunication when the vessel operates in coastal areas