HAVSNURP – New Trawler from Karstensens for Norwegian Owners

Karstensens Skibsværft A/S has delivered a new pelagic trawler for the Norwegian pelagic fleet for fishing company Havsnurp AS.

On 18 June 2021, a contract was signed between Havsnurp AS and Karstensens Skibsværft A/S for the construction of a new 69.99 m trawler.

The new building has now been completed and handed over to the Company.

Havsnurp AS is owned by the Stølen and Hole families from Midsund in Norway. The shipping company was established in 1985 by brothers-in-law Karsten Stølen and Kjell Inge Hole.

This vessel is the Company’s third newbuilding and will replace the previous Havsnurp, delivered from Karstensens Shipyard in 2012. Today, the company is managed by the next generation, in the form of brothers Jan Andre and Tor Inge Stølen as well as brothers Ken-Arve and Oddbjørn Hole.

The company operates combined trawl fishing, partly pelagic for herring and mackerel and partly for industrial fish combined with edible fish/whitefish. The new vessel must be operated according to the same principles.

Ever since the contract of the previous “Havsnurp”, Rederi and Værft have worked closely together more than 13 years ago.

The new project is therefore a natural extension of a successful and constructive cooperation!

Karstensens Shipyard is pleased with the trust the Stølen and Hole families have shown with this order.

Like the other ships that the shipyard has under construction for shipowners in Norway, Scotland, Sweden, the Faroe Islands and Iceland, the new “Havsnurp” is of its own design.

After the delivery of new “Havsnurp”, Karstensens Shipyard has a total of 19 fishing vessels in the order book for delivery over the next 3 years.

The new vessel is a state-of-the-art combi vessel, designed for fishing for both pelagic and demersal edible fish with everything within the latest machinery, equipment and equipment.

Design:  Karstensens Shipyard A/S

Test drive speed/average: 17.5 knots.

Class:   DNV +1A E0 TMON Ice-C, Fishing                     Vessel.

HAVSNURP DESCRIPTION:

The hull is built of steel with two through decks, main deck and shelter deck as well as rear and boat decks with deckhouse. The wheelhouse, deckhouse, chimney and fore and aft mast are built in aluminium. The hull is built on round beam, with mirror and vertical bow and built-in bulb. The stern is made with a knuckle line/bulb bow and skeg for space for large propellers.

Below the main deck, the hull is divided into the following watertight compartments:  Forepeak, thruster/sonar compartment, azimuth compartment, fuel oil high tanks, RSW cargo section with central RSW pump/manifold compartment, engine room with main engine coupled to reduction gear with nozzle propellers and side propellers. Completely aft aft with tanks.

On the main deck:  Forepeak, stores/Ozone compartment, vacuum pump room, RSW cargo trunk section with central compartment for RSW refrigeration machine room. Aft of this interior section SB, machine shop BB and engine room gallery CL. Panel space and control station aft of BB and then machine stores in CL and SB under submerged notbinge. Completely aft mainstore tanks and steering machine/hydraulic compartment. Layout with 2 chief engineer compartments with toilet/shower as well as laundry, trim room and hallway/staircase.

 On shelter decks:  Stores in forepeak and engine room for harbour generator (DG3). The aft of the butt of the factory tyre and aft of this enclosed loading deck with spinning wincher as well as with deckhouse/silage box and hatches for the 9 RSW tanks.

Full width superstructure aft hatches, trawl workshop/stores BB, welding workshop and exhaust and ventilation shafts BB and fittings SB.

Layout in superstructure:  3 crew hatches, all with private shower/toilet, changing room/coffee shop with shared toilet, oilcloth room and hallways and stairs. By placing the device as far away as possible from the propeller and other noise sources, a good basis is created for a quiet device. In addition to the location itself, a number of constructive measures have been carried out with regard to noise insulation, which also strongly contribute to creating a low noise level.

Aft for superstructure trawl deck with 2 net drums, arranged side-by-side and SB downed notbinge. On mirror 2 hydraulic stern gates and 2 x 3 pcs hydraulic guide rods.

The rear deck/boat deck 01 is waterproof all the way to the stern of the superstructure, aft of amidships.

Front of rear deck/boat deck 01 anchor winch in house under foremast and mooring equipment. Esteem for this roller damper tank.

Then spinning deck with river line and chest winch and front spinning algae SB. SB fish pump, fish hose and electric cable drums. SB for deckhouse aft whimsical gallows as well as Triplex nothaler. Also on boat deck 01-level main deck crane and fish pump crane.

On boat deck 01, deckhouse in center. Layout in deckhouse with:  Fair, day room, china, galley with provisions room (and separate refrigerator-freezer rooms), hospital, shared toilet and hallways and stairs. On the BB side of interior design built in MOB boat and –davit. Aft of this separate structure furnished with fan compartments for engine rooms and hydraulic compartments as well as exhaust (exos) trunks.

Aft for deckhouse, on boat deck 01, 2 pcs trawlwinch and chimney and end-saviourwinch BB. Completely aft of boat deck fish pump and fish hose reel BB. Trawl gallows with suspension for 3 trawl and 1 savior block fully aft.

On boat deck 02 deckhouse with décor. Layout in deckhouse with:  6 hatches (with private shower / toilet), laundry, shared toilet, electronics room and hallways and stairs. Aft for/on BB side of deckhouse MOB boat and -davit as well as chimney.

Wheelhouse on bridge deck has 360° sight.

DESIGN PHILOSOPHY 

The design philosophy behind the main/auxiliary constellation is as follows:

1 piece of power take-off (PTO) is mounted on the main gear, calculated for primary operation of the ship’s power supply via the shaft generator (2500 kW).

For additional power supply, the vessel is equipped with 3 diesel generator sets, each of 615 ekW. The electrical system is built with the possibility of parallel operation of the 3 diesel generators.

Furthermore, the power plant is supplied with a Power-Management System (PMS) that manages power consumption and automatic start-up of generator sets.

UPS/clean power is mounted for 230V, so the ship’s frequency can flow between 50 and 60 Hz. This allows to reduce the rpm of the main engine by 17%.

The diesel generator systems have the possibility of either 50 or 60 Hz operation.

In addition to the conventional propulsion system, the vessel is equipped with an 850 kW (1156 HP), combined submersible azimuth/tunnel thruster in the foreship. This will be able to propel the ship forward in case of emergency, or in case of desire for reduced speed.

The above arrangements ensure a very high degree of flexibility, high reliability as well as the possibility of fuel and operational sound operation.

OPERATING PHILOSOPHY

During fishing, where the vessel’s electric winch system is used more or less continuously, the PTO of the main gear and thus the shaft generator will be engaged. When full power is needed on the winches, there will be no need for full performance on the main engine. The main motor will thus be used as a source of power partly for propulsion and partly for power supply. Accordingly, it is not necessary to have the auxiliary engines in operation.

The winch system is of electrical type, with re-generation of the power blue during firing of wire.

Should there be a desire for additional power on the propulsion system, then the auxiliary engines are sufficiently large that together they will be able to run the ship’s normal power supply including load on the winch system.

As a further measure, with direct zero emission effect, the vessel is provided with 1100A shore power connection. This allows the ship to unload without the use of diesel generators, and thereby be real zero emissions. However, existing infrastructure on land is not yet complete all sites.

The above arrangements ensure a very high degree of flexibility, high reliability as well as the possibility of fuel and operational sound operation.

HAVSNURP

WHEELHOUSE: ELECTRONICS & ELECTRICALS

ELECTRONICS:

Electronic equipment (navigation, fish search, communication) supplied by Marineelektronikk, Ålesund and Furuno Norway and installed by KS Elektro.

Main components:

Matrix system: Furuno BlueBridge

LF sonar: 1 x Furuno FSV-25.

MF sonar: 1 x Furuno FSV-85.

HF sonar: 1 x Furuno FSV-75.

Sonar:

• 1 x Furuno FCV-38
• 1 x Furuno FSS-3BB
•  1 x Furuno DFF3

Trawl sonar: 1 x Furuno Imagenex TS-360

Network monitoring: 1 x Scanmar ScanBas 365

Streamlog: 1 x Furuno CI68

Radar, S-band: 1 x Furuno 2338 BB.

Radar, X-band: 1 x Furuno 2318 BB.

Radar: 1 x Furuno DRS6A-NXT

Gyro: 1 x Simrad GC80.

GPS gyro: 1 x Furuno SC-70.

Autopilot: 1 x Simrad AP80.

Ecdis:  2 x Tecdis T-2138A.

Plotter:

• 1 x MaxSea Time Zero.
• 1 x Olex.

SSB: Sailor 6310.

VHF equipment:

• 2 x Sailor 7222 DSC
• 2 x Sailor 6210.

Thermal imager: Flir M364C, gyro stabilized

V-set communication: Telenor.

Satellite communication: StarLink.

Satellite phone: Iridium LT-3100.

Sat-TV system: Telenor.

TV/Entertainment: KS Elektro.

All equipment such as blackbox, and displayed on:

Wheelhouse monitors:  55″ Hatteland Enix, widescreen monitors.

HAVSNURP

ENGINE ROOM & MACHINERY

Diesel engine: Wartsila 8L32E2, 4640 kW.

Propeller system: Wartsila 4G1005, d4500 mm.

Gearbox: Wartsila SVC95-P58.

Electrics generator: Cummins AvK, 2500 kW / 3125 kVA @ 1200 rpm

-Water-cooled

Auxiliary engines: 3 x Nogva Scania DI16, 615 kWe @ 1800 rpm.

Steering System: 1 x Kongsberg SR772 – 275 kNm.

Rudder: 1 x Kongsberg FB-H 2330×4500 (flap).

Retractable Azimuth Combi Thruster: 1 x Brunvoll AR-63-LTC-1750, 850 kW / 1156 HP

Side propellers aft: 1 x Brunvoll FU-63-LTC-1750, 950 kW / 1292 HP

Starting air compressor: 2 x Sperre HL2/77A

Working air comp: 2 x Atlas-Copco GA11FF

BrO separator: GreenOil filter.

BrO transfer pumps: 2 x Desmi.

BrO heeling pump: 1 x Desmi, 90 m3/h

PUMPS

Main engine cooling: Azcue.

Fire, spray and bilge pumps: Desmi.

Hydraulic, AC and other cooling water pumps: Desmi.

HAVSNURP

DECK EQUIPMENT

Electric winches, all supplied by MacGregor Rapp Marine:

• 2 x Trawlwincher – 80.0 tonne
• 2 x Snurpewincher – 37.7 tonne
• 2 x Net drum – 80.0 tonne
• 2 x Savior Winch – 45.0 tonne
• 2 x Mooring winch, aft – 6.6 tonne
•  1 x Net Sounder winch
• 2 x Anchor winch

Fish pumping equipment provided by MacGregor Rapp Marine:

• 2 x Electric fish pump, 24″.
• 2 x Electric cable drum
• 2 x Fish hose reel

Deck cranes and purse seine handling equipment, supplied by MacGregor Triplex:

• 1 x Nothaler, Triplex 1020 with electric operation.
• 1 x Notch crane on gallows, Triplex KNR-75
• 1 x Medium roller crane, Triplex NK-6000
• 1 x Front deck crane, Triplex KN-50
• 1 x Fish pump crane, Triplex KN-50
• 1 x Riverlayer, FLH-112
• 1 x Founder, GLH-112

Hydraulic drive stations / power packs:

Crane system: 2 x 128 kW.

Trawl blocks: Brdr Markussen, BlueLine

Anchors and chains:  HHP Spek, supplied by Sotra.

HAVSNURP

FISH TANKS & PUMPING EQUIPMENT

FISH TANKS

RSW-system:

• 2 x PTG FrioNordica, 2 x 1300 kW / 2 x 1,118,000 kCal/h.
• Circulation pumps 2 x 960/h
• Condenser pumps 2 x 270/h
• Pumps of type Desmi.
• RSW circulation system with Eltorque actuated valves, controlled from MCS control system.

Vacuum-system: C-Flow:

• 4 x 87 kW compressor units.
• 2 x 4200 l tanks

HAVSNURP

FISH HANDLING SYSTEM

Slurry ice system:          Cape, Optim-ice BP-140 + T-4000 (107 kW / 92,000 kCal/h).

Factory equipment:       Boa Tech, incl installation.

Cleaning machines:      2 x KM Fish / Carsøe Mk5.

HAVSNURP

ACCOMMODATION & LIFE SAVING

ACCOMMODATION

Accommodation in the deckhouse includes: Dayroom, mess, galley with provisions room, corridors, and stairs.

• Wheelhouse: Shipyard.
• Wheelhouse consoles: El-Pro, Norway.
• Accommodation: Maritime Montering, Norway.
• Furniture: Maritime Montering / Ekornes, Norway.
• Wheelhouse chairs: 3 xNor-Sap 1600 Comfort.

LIFESAVING – FIRE-FIGHTING:

MOB boat: Viking Norsafe Merlin 615.

MOB boat davit: MDM DAF-275.

Life Rafts:    2 x Viking, 12 pers.

Fire detection systems: Consilium.

Central firefighting: Survitec, water mist plant.