BNR 169 - Deirdre

twin screw shallow draught mussel cutter

Shipyard Gebr. Kooiman BV has delivered a new mussel fishing boat which operates on the rough waters off the coast of Ireland. It is the second of a series of three vessels. The hull was built in Poland at the Stocznia Kozle Serwis shipyard, and then transported to the shipyard in Zwijndrecht for further fitting out.

The Deirdre has a long and slender shape, but has a large loading capacity of 235 m3. There is a further 45 m3 wash hold for the caught mussels. This system was supplied by W. Bakker. Catching is done with two pivoting arms with Maaskant Bruinisse M120EP6 mussel winches, together with a Sempress remote control.

Propulsion and electricity come from Caterpillar, consisting of Twin Cat 3412E TA diesel engines, 349 kW each for propulsion, and a separate Cat SR4, 506kVA generator. The propulsion engines drive Van Voorden five-bladed propellers through a Reintjes WAF 344L gearbox. The double propulsion is ideal for improved manoeuvrability in the shallow waters.



Twin screw shallow draught mussel cutter


  • Length O.A. 40,00 m
  • Length Bpp 36,75 m
  • Bream (mld) 9,00 m
  • Depth 3,10 m
  • Low draught 1.20 m


  • Main engines 2x Caterpillar 3412 E each 635 hp at 1800 r.p.m.
  • Reintjes reduction gears type WAF 344L
  • Bow thrusters Tunnel type bow thruster, type VT 150, propeller diameter 750 mm, electrical driven, 110 kW at 1500 r.p.m.
  • 2 x 5 blade propellers, diameter 1100 mm, in v.d. Giessen wingnozzles


  • 1x Caterpillar SR4 main alternator 506 kVa
  • 1x John Deere alternator 65 kVA


  • One main generator driving all electric driven users like fishing winch, bow thruster, wings, water pump etc
  • 2 HHP pool anchors with a total length of 151,25m
  • Mussel winch, Maaskant type M120EP6 provided with 4 drums for the dredges and two tipping in drums for the tipping in wires
  • Complete washing installation provided with three conveyor belts, transporting the mussels from the forward washing hold to the cargo holds through a longitudinal and transverse movable belt
  • Knuckle boom hydraulic operated crane type Heila HLRM 13-2S
  • Vessel equipped with so called fishing wings specially designed by Kooiman for mussel dredgers with big advantages regarding shorter cycle times and better maneuverability of the vessel

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