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Incorporating Clean Shipping International

INNOVATIVE HYBRID FISHING VESSEL DELIVERED BY DAMEN

Tuesday, November 5, 2019 

A new fishing vessel, constructed at Damen Maaskant Shipyards Stellendam (Maaskant) has been named 'Spes Nova' in a ceremony organised by Dutch fishing company Van der Zwan.

The Spes Nova, a UK-205 fly-shooter/twinrigger vessel, is part of a newly-developed range of fishing trawlers based on a Vripack Naval Architects design. The original concept was borne of a collaboration between Vripack Naval Architects, Ekofish Group - a subsidiary of Van der Zwan - and Maaskant. This approach is said to have led to an unconventional ‘future-proof’ solution.

Damen Maaskant Shipyards Stellendam was chosen to construct two such vessels for delivery in 2019 and early 2020. “Damen was chosen thanks to its reputation for high-quality shipbuilding,” said Gerard Zwijnenburg, owner, Van der Zwan. “Damen Maaskant Shipyards Stellendam also has an impeccable track record of vessel maintenance going back many years, so the project was certainly in good hands.”

The UK-205 range features a new type of hull design to reduce pitching in head waves. “This is achieved by reducing reserve buoyancy in the bow above the waterline,” said John van der Maas, project manager, Damen Maaskant. “An oncoming wave will lift the midbody, but will have less effect on the bow, which results in a softer motion. Rather than slamming into waves, the vessel splits them, reducing resistance and stress on the hull.”

UK-205 vessels can be powered by diesel-electric or by conventional diesel engines, depending on the needs of each client. Van der Zwan opting for a diesel-electric hybrid system in addition to a battery bank. “We’re thinking of the future,” said Zwijnenburg. “The battery bank allows silent, emission-free running near populated areas, and also introduces the possibility of peak-shaving to help the vessels run at optimal energy efficiency.”

The system is complemented by an energy recovery source in the form of a 700V DC-bus connected to the battery bank. As the vessel’s winches let out the fishing nets, the E-motors can work as generators to convert braking energy into battery power. Along with the vessel’s capability to sail on two or three motors thanks to its inbuilt redundancy, these energy-optimising measures will help Van der Zwan cut operational costs without compromising quality of performance.

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