Marimecs designs innovative Multipurpose Fishing Vessel Z-575 Janneke for Werft Shipbuilding
After 24 years, the shipbuilding industry in Urk has celebrated the return of large cutter construction with the delivery of the Z-575 Janneke, an innovative fishing vessel designed to set new standards in the industry. Marimecs played an important role in the vessel’s design and development, collaborating closely with Werft Shipbuilding to bring the project to life within a short timeframe.
Photos by: Marimecs
Commitment to innovation
The Z-575 Janneke, which will operate under the Belgian flag from the port of Zeebrugge, symbolizes Urk’s thriving maritime cluster and its commitment to innovation. The vessel’s unique hull design combines the features of a modern MDV ship and a traditional beam trawler.
Powered by a Yanmar N-serie diesel engine delivering 749 kW at around 800 rpm, paired with a German ZF coupling with 97 rpm on the propeller, the power is about half that of a traditional large Dutch beam trawler. The vessel features a 3.40-meter propeller, a towing capacity of 21 tons, and achieves a speed of 10 knots.
Cost-effective
A diesel propulsion system was chosen over electric or hybrid options, as it is currently the most suitable solution for small fishing vessels with this operational profile.
This propulsion setup, combined with the hull design, ensures remarkably low fuel consumption, making the vessel both cost-effective and environmentally friendly. These features make it ideally suited for challenging fishing areas, such as the waters around Ireland.
Sustainable and versatile
Harm Coster, Project Manager and Naval Architect at Marimecs, highlighted the importance of close collaboration throughout the design process: “At Marimecs, we believe the best designs emerge through close collaboration with the client. From the very beginning, Werft Shipbuilding and the owner Jelle Hakvoort were deeply involved in shaping the design. Their feedback was crucial in ensuring that the vessel met all expectations.”
Thoughtfully designed
The vessel’s layout and fishing equipment were tailored specifically to the client’s needs, ensuring that every detail was considered for optimal performance. Coster explains: “As engineers and architects, we don’t dictate how they should fish or what the ideal layout is. Our role is to support the client by translating their technical requirements into a design that is as efficient as possible.”
On-site
Throughout the construction, Coster was a frequent presence at the shipyard to ensure smooth communication and quick decision-making during the detailed outfitting and equipment engineering phases. “I was on-site regularly to consult and provide support, ensuring that everything was aligned with the client’s vision,” he says.
Naval Architect Harm Coster from Marimecs during the vessel’s first trial run.
Marimecs unique hull design combines the features of a modern MDV ship and a traditional beam trawler.
Local collaboration
The project was a collaborative effort, with Werft Shipbuilding serving as the main contractor. Local specialists contributed to various aspects of the ship’s construction: VCU TCD handled the hull construction, Piet Brouwer Elektrotechniek provided the electrical systems, De Flux managed the interior outfitting, and De Boer Marine supplied the navigation equipment.
Additional contributions came from Straalbedrijf Flevoland for blasting and painting, and ITech for cooling and sanitation systems. VCU and RI&S ensured compliance with safety standards onboard.
Proud moment
Owner Jelle Hakvoort and his family enjoying Janneke’s first trial run on the North Sea.
Nice to read
To learn more about the story behind the Z-575 Janneke’s construction and why the vessel will sail under the Belgian flag, you can also read this article (in Dutch) in the ‘Binnenvaartkrant’.
Marimecs scope of work
- Naval Architecture including CFD analysis
- Structural engineering, Concept design, Basic design and Detail design.
- Outfitting and Equipment engineering
Multifunctional Beam Trawler
Z-575 Janneke
General specifications
- Length overall: 27,99 m
- Engine power: 749 kW
- Towing capacity: 21 tons
- Speed: 10 kts
- Hull material: Steel
- Classification society: Bureau Veritas
- Class notation: C Hull + Mac – Fishing Vessel, Unrestricted Navigation, GMDSS Area 2
- Flagstate: Belgium
- Crew: 6
- Engine: Yanmar 6N21AW diesel, 749 kW at 800 rpm
- Coupling and propulsions: ZF W10220, Promarin Propeller, diameter 3400, 5 blades
- Smart energy systems, combined with filters and catalytic converters
- Efficient energy usage, with features like heat recovery in cooling, motion-sensor LED lighting
- Power saving compared to a traditional large Dutch Beam Trawler 50%
Future proof
Marimecs delivers solutions that suit your demands by developing sustainable and future proof vessels. Would you like to know more about our efficient ship designs or refit services.
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