Fully steerable Twister trawl doors from Faroese gear maker Vónin are now in use across several countries. They are gaining traction among pelagic fishing vessels, following years of development and testing.
Growing uptake across fleets
According to Faroe Business Report, the latest third-generation Twister doors had been installed on nearly 50 pelagic trawlers by late 2025. The systems are now operating on vessels from the Faroe Islands, Iceland, Norway, the United Kingdom and the Netherlands.
The technology allows skippers to control and adjust trawl doors directly from the wheelhouse. This enables more precise gear positioning during fishing operations.
According to Vónin, the product has reached a stage where it can be considered a reliable standard solution for pelagic fisheries.
Improved control at sea
Skippers report better performance during fishing. The system helps maintain stable trawl depth, even during sharp turns or in strong currents.
It also reduces issues seen with traditional doors, where uneven positioning could affect the trawl and reduce efficiency.
The ability to adjust trawl height quickly is seen as a key advantage when targeting species such as mackerel, herring and blue whiting.
Expansion into demersal fisheries
Vónin is now working to apply the same technology to demersal fisheries. Initial trials have already been carried out.
The company notes that while the core control system remains the same, demersal operations require adjustments due to differences in depth and operating conditions.
To support the rollout, Vónin has partnered with a mechanical engineering firm in Fuglafjørður to provide assembly, maintenance and technical support, including remote servicing at sea.