Seiner/trawler’s electric deck package

Seiner/trawler’s electric deck package Annalijdia has an electric deck equipment package for trawling and seine netting, developed by TCD. Photo: TB Shipyards

Built at TB Shipyards in Harlingen for Maarten van Duijn, Annalijdia LT-43 is a combined twin-rigger/fly-shooter designed to operate in the North Sea and English Channel.

A Vestværft design, Annalijdia has a 37.51 metre overall length and a beam of 8.70 metres. TB Shipyards acted as the main contractor responsible for co-ordinating sub-contractors and delivering the completed vessel.

Annalijdia is one of the latest generation of fishing vessels capable of alternating stern trawling and fly-shooting, using electrical winch systems that are becoming increasingly popular.

VCU’s TCD technical division developed the pioneering Ósey Urk winch arrangement for Annalijdia. When requests started to come in for electric winches, TCD was presented with the challenge of coming up with a solution and found the answer with local company Dromec, which has a background in building small electric winches and capstans, and which has built up a strong reputation in dredging and offshore sectors as its product line has expanded.

“We discussed with them and they were confident this could be done,” said TCD’s Lourens de Boer, explaining that they were reluctant to go down the route of working with clutches, and instead had the challenge of developing the gearboxes and electric motors that could combine freewheeling rope off the drums to shoot away with high-torque, low-speed hauling capability.

“Dromec came up with an electrical package and we supplied the winches,” he said.

“The electric system is marginally more expensive, but there are many advantages,’ he said. ‘It’s very simple to build in an autotrawl system. The trials all went well, especially showing that we can maintain a constant tension on the ropes during shooting and hauling.”

TCD delivered a pair of winches capable of holding 3700 metres of 50mm seine rope, which can also be used for twin-rigging with Dyneema warp, plus a centrally mounted mid-wire winch with capacity for 750 metres of 26mm wire, and which is also prepared for Dyneema warp.

The package also includes twin 12m3 net drums built into the aft gantry, with Dromec supplying the drives and control systems.

“An important feature of the electric winch control is that shooting is at a controlled high speed

and tension, and the drum is not clutched out of the motor,” Lourens de Boer said, commenting that the control system incorporates automatic wire spooling, automatic shooting with tension control, automatic hauling at equal speed and tension and programmed hauling speeds.

Annalijdia’s catch handling system is supplied by VCU’s technical division TCD, and this is designed to be able to handle flatfish catches in significant quantities as promptly as possible during the summer, while also having capacity to handle smaller catches of a greater variety of species while fly-shooting in the winter months.

VCU’s designers developed the layout with reception facilities for both quantity and variety during the sorting process, with a rotary washer system. Once the client had approved the design and layout, the catch handling system was constructed at TCD’s stainless steel workshops in Urk, and then installed and commissioned at TB Shipyards in Harlingen.

The setup includes VCU’s catch management system in the fishroom, where fish are weighed and each box registered, with the data shared with the VCU CatchManagement software in Annalijdia’s wheelhouse. VCU’s refrigeration engineers fitted the fishroom cooling system and VCU also supplied and fitted one seawater flake ice maker and a slurry ice machine.

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