Karstensens shipyard RUTH purser/trawler

Karstensens Shipyard has delivered the new 89.35 metre purser/trawler RUTH to owner Gullak Madsen of Hirtshals, Denmark

Newbuilding 453 “RUTH” was handed over to owner Gullak Madsen of Hirtshals, Denmark on 17 September 2021 from Karstensen Shipyard.

The hull for “RUTH” was built by Karstensen Shipyard Poland in Gdynia, and arrived in Skagen in February 2021.

New RUTH replaces Gullak Madsen’s previous vessel of same name, which is now operated by new owners Halstensen in Norway as “Slaatterøy”.

The vessel design, specification and arrangements is a result of an extensive and close cooperation between owners and yard where all solutions are optimized and tailor made to suit Gullak Madsen and his crews specific requirements.

Main focus has been set on optimizing working, safety and comfort for the crew, optimizing catch handling- and storage facilities and optimizing of fuel consumption. In order to reach above targets, the vessel is fitted out with all the newest machinery and equipment.

karstensens ruth

The new 89.35M metre RUTH built by Karstensens Shipyard


The hull is built in steel with two continuous decks; main deck and shelter deck, and with long forecastle- and boat decks. Wheelhouse, boat decks, funnel and masts are built in aluminium.

Hull shape of round bilge construction with bulbous bow and stern skeg, vertical wave-piercer stem and transom stern.

Below main deck the hull is subdivided into the following watertight compartments: Forepeak, bow thruster-/sonar room, insulated RSW-tank section with 16 tanks and central RSW pump- and manifold room, engine room with main engine connected to reduction gearbox with one, ducted propeller and aftpeak with fuel- and lub oil tanks.

On main deck the hull is arranged with: Forepeak, store (1) room, RSW-hold/trunk section with central corridors, forward containing vacuum tank room and midship RSW-machinery room. Abaft hold section SB accommodation area, PS/CL engine store/workshop, control room and switchboard room. Abaft this, side-to-side trawl stores (2) and all aft hydraulic room with steering gear and SB engine store. Accommodation with laundry, trim room with wellness and stairs and corridors.

In order to create best possible design for low noise, the accommodation is located as far away from the propeller as possible. In addition a number of constructive steps were made, in order to create a low noise level. During trails noise measurements showed levels well below any requirements and recommendations.

karstensens purser/trawler ruth

On shelter deck arrangement is: Upper forepeak, generator room, workshop/welding cabin and central vacuum compressor room, all SB with stores room (2) PS. Abaft forecastle fish receiving deck, with centre deck house with water separator and hatches for the 16 RSW-tanks. Water separator is built in aluminium with SS loading pipe to each tank.

Abaft midship, full width superstructure. Accommodation in superstructure with: oil skins room, changing room, coffee bar and stairways and corridors. PS of superstructure contains small workshop and entrance to stairs down.

Abaft superstructure trawl deck with 2 net drums side-by-side and a third netdrum PS in waterfall design, all off-set to PS and purse net bin SB, recessed into shelter deck. At transom 2 hydraulic stern gates and hydraulic operated guiding pins.

On boat deck 01, forepeak stores (3) and forecastle stores (4). Abaft of this, roll reduction tanks and pursing deck with 2 purse winches CL/PS. SB forward purse gallow is mounted.

karstensens shipyard ruth purser/trawler

On SB purse fish pump, fish hose- and el-cable reels are mounted. Aft purse gallow and nethauler are mounted midship SB. Also on boat deck 01 level main foredeck crane and SB fish pump crane.

On boat deck 01 abaft midship, deck house in centre. Accommodation in deck house: 5 1-man, 2 2 man cabins, all with en-suite toilet/shower facilities, hospital instrument room and stairways and corridors.

Abaft deck house (on boat deck 01), 2 off trawl winches, all aft fish pump deck, with fish pump and cable reel SB and PS.

Integrated in aft ship construction and boat deck 01 is also trawl gallow, which accommodates 2 main towing blocks as well as tail-end block. 2 off net sounder winches are fitted on top of gallow.

On forecastle deck, 2 anchor winches, with mooring drums in dedicated house are fitted, together with mooring equipment.

On boat deck 02, deck house with ventilation room and accommodation are mounted. Accommodation in deck house: Mess room, day room/TV-lounge, galley with provision room (and separate fridge-/freezer rooms) and stairways and corridors. PS fan room for ventilation for engine rooms and hydraulic pump room, as well as exhaust trunks. On PS of deckhouse MOB deck and –davit.

On boat deck 03, deck house with accommodation are mounted

Accommodation to contain: 6 1-man cabins, all with en-suite toilet/shower facilities, instrument room and stairways and corridors.

Wheelhouse on top of deck house, with 360° view. Funnel with deck PS.



Length overall …………. 89,35 m

Length between PP …. 83,50 m

Breadth moulded ……… 17,00 m

Breadth at stern ……….. 18,00 m

Depth main deck ………… 6,90 m

Depth shelter deck …….. 9,60 m

Scantling draught ……… 8,50 m

Frame spacing ………… 600 mm

Tonnage …………..……. 4319 GT

RSW-tanks ………….. 3590 cum

Fuel oil ………………….. 599 cum

Fresh water ……………… 74 cum

Forepeak ………………… 264 cum


Design: Karstensens Skibsværft A/S

Trial speeds / average;

17,5 knots, diesel-mechanical.

Hull: – built by Karstensen Shipyard Poland, Gdynia, Poland.

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


Ruth wheelhouse karstensens

The wheelhouse on the new RUTH


 LED navigation lights: Lopolight

Search light: 1 x Searchmaster (electric GPS controlled)

2 x Polarlight (electric remote controlled).

Tank level controls: Mobrey alarms.

Electrical contractor: KS Elektro.

Power management: Deif Delomatic 4 PMS system.

Main switchboard: ScanTechnic, Denmark.

Vessel is fitted with frequency converter for floating frequencies between 50 and 60 Hz.

Alarm panel: Marine Control Services (MCS).

antarctic karstensens shipyard


Extensive array of electronic equipment (navigation, fish finding and communication), all supplied by Furuno, Scanmar and Simrad. Simrad equipment is supplied by Sea Mech.

Main items:

Display system: Furuno Smart Bridge

Main monitors; 5 pcs 55” Olorin.

26 pcs 27” Hatteland.


LF sonar 1: Furuno FSV-25S, 15-25 kHz.

LF sonar 2: Simrad ST94, 25 kHz.

MF sonar: Simrad CS94.

Echo sounder 1+2: 2 x Simrad ES80

Echo sounder 3: Furuno FCV-38.

Echo sounder 4+5: 2 x Furuno FSS-3BB

Purse net sonar / bow scanner:

Simrad SN93

3D sonar: WASSP 80 kHz

Current indicator: Furuno CI68.

Net monitor: Scanmar.

Trawl sonar: Simrad FS-70.

Ruth wheelhouse karstensens

Radar 1 (3 cm): Furuno FAR 2218-X.

Radar 2 (10 cm): Furuno FAR 2238-S.

Radar 3: Furuno DRS6A-NXT

Ecdis: Tecdis T-2182.

Plotter 1: Olex, 3D.

Plotter 2+3: Sodena.

Plotter 4: MaxSea Time Zero.

GPS: Furuno GP-170

AIS 1: Furuno FA-170

AIS 2: JRC JHS-183

Gyro compass: 2 x Simrad RGC-80.

GPS compass: Furuno SC-130.

Furuno SC-70.

Autopilot: Simrad AP70-system.

VDR: Furuno VR-7000 VDR

Ruth wheelhouse karstensens

V-sat communication: 2 x Sailor 900

Sat-TV system: Sailor

GMDSS: Sailor equipment for A4 navigation.

VHFs: Sailor.


Autotrawl system: Scantrol.

ME remote control: MAN ATS3000.

Intercom: Vingtor Stentofon,

Ruth wheelhouse karstensens


ruth main engine

Design principles for main engine / auxiliary arrangement are as follows:

Vessel is fitted with a 5400 kW main engine, connected to one reduction gearbox, driving one propeller. Shaft alternator of 2700 kW is fitted to gearbox PTO.

To supply additional electric power, the vessel is fitted with 3 auxiliary engines / gen-sets, each producing 1002 kWe as well as a harbour gen-set of 538 kW.

During normal steaming, one of the main engines will be on, giving propulsion power as well as electrical power (through the shaft alternator).

During heavy trawling, both of the main engines will be engaged, again giving propulsion power as well as electrical power (through the shaft alternators).

All electrical power systems are controlled by the vessels DEIF Power-Management-System. Further on bus-bar breaker is fitted in main switchboard, allowing aft thrusters to be fed off shaft alternator and forward thruster and vessels hotel load off the diesel generator set.

Electrical power system is fitted for sliding frequency (60-50 Hz), by means of frequency converters for 400/440 V and UPS clean power static supply/converter for 230 V. This will allow main engine and propeller rpm to be reduced with 17%.

ruth main engine

Main engine: MAN 9L32/44 CR, 4800 kW @ 750 rpm.

Propeller plant: MAN VBS1100, d4500 mm.

Reduction gearbox: Scana Volda ACG980/PF680.

Shaft alternator: AEM SP 630 L6, 2700 kW / 3375 kVA.

SCR system: MAN Energy Solutions

Auxiliaries: 3 x Cummins QSK38-DM, 1002 kWe @ 1800 rpm.

Harbour set: 1 x Cummins QSK19-DM, 538 kWe @ 1800 rpm


Rudder Kongsberg high lift flap rudder.

Steering gear: Kongsberg Tenfjord SR 723 – 412 kNm.

Stern thrusters: 2 x Brunvoll, 950 kW / 1292 HP.

Azimuth thruster: 1 x Brunvoll AR80 LTC2100, 1500 kW / 2040 HP.


Starting air compr.: 2 x Atlas Copco LT15-30 KE.

Workign air compr. 2 x Atlas Copco MAS GF11FF

Fuel oil cleaning: Green Oil Standard filter.

Lub oil cleaning: Green Oil Standard filter.

FO transfer pumps: 2 x Bombas Azcue.

Remote sounding: MCS.

Pumps: Main engine cooling: Bombas Azcue.

Deckwash-, fire- and

bilge pumps: Bombas Azcue.

Hydraulic cooling – and

fish room cooling pumps: Bombas Azcue.

Box coolers: GEA Bloksma (all engines and main components are FW cooled).

Bilge ejectors: Ellehammer.

FW pressure sets: 2 x Bombas Azcue.

Hot water tank: OSO, 200 l/ 2x15kW.

Sewage pumps: 2 x Bombas Azcue.

Sewage vacuum syst: Jets.

ruth auxiliary engines
ruth main engine


aft deck ruth trawl equipment

Electric winches: – all supplied by Ibercisa, main system, low pressure:

2 x Trawl winches 97,0 t

1 x Tail-end winch 90,0 t

1 x Topline winch 90,0 t

3 x Netdrums 140,0 t

2 x Purse seine winches 40,0 t

1 x End-wire winch 20,7 t

2 x Purse auxiliary winches 15,1 t

2 x Mooring winches 12,0 t

1 x Anchor windlass

2 x Netsounder winch


Fish pumping: – all supplied by MacGregor Rapp, electric:

3 x Cable reels.

3 x Fish hose reel.

3x MacGregor Rapp, electric fish pumps, 20”.

aft deck ruth

Purse handling: – all supplied by MacGregor Triplex,:

1 x Nethauler, Triplex 1020, electric 32,0 t

1 x Net crane, KNR-120, 7,0 tonnes x 13,8 m.

1 x Net crane, KNR-75

1 x Intermediate roller crane, NK-6000

1 x Float stacker, Triplex

1 x Ground stacker, telescopic.


Deck cranes: – all supplied by MacGregor Triplex, hydraulic:

1 x Fore deck crane, KN-75, 4 tonnes x 18,0 m.

1 x Fish pump crane, KN-60, 3,5 tonnes x 13,0 m.


HP hydraulics: Complete drive system for cranes:

2 x 128 kW pump-units.


Trawl blocks Brdr. Markussen, Blue Line

Anchors & chains AC-14, supplied through Max Fodgaard.


rsw ruth

RSW-system: 2 x Johnson Controls (York/Sabroe), each 1500 kW / 1.290.000 kCal/h.

1 x Johnson Controls maintenance compressor , 458 kW.

Circulation pumps 4 x 525 cum/h

Condenser pumps 2 x 310 cum/h

RSW circulation system with remote operated RSW-valves through Johnson Controls control system.

Actuators for valves: Eltorque.


Vacuum-system: Iras:

3 x 87 kW compressor units.

3 x 3000 l tanks.






Wheelhouse: Shipyard.

Wheelhouse consoles: El Pro, Norway.

Accommodation: Maritime Montering, Norway.

Furniture: Maritime Montering / Ekornes, Norway.

Wheelhouse chairs: Nor-Sap 1600.

Ventilation plant: LF Ventilation.

Windows: Promap.

Window wipers: Wynn.

Galley equipment: Beha, Norway.

Paint supplier: PPG Sigma – vessel completely sandblasted and hot-zinc sprayed.



MOB-boat: Viking Norsafe Mako-655 waterjet.

MOB-boat davit: Viking MDM DAF-375E.

Life rafts: 2 x Viking, 20 pers.

Watermist system: Survitec.

Fire detection: Scana Servoteknikk.

The Fishing Daily would like to congratulate Gullak Madsen on his new fishing vessel and wish everyone good and safe fishing well into the future