A propulsion system radically different from traditional solutions and capable of reducing fuel consumption by up to 20%: this is the outcome of the tests conducted at MARIN (Maritime Research Institute Netherlands) on ABB Dynafin, developed after more than a decade of research and optimized for yacht applications thanks to a multi-year collaboration with Oceanco.

The tank trials confirmed the results predicted by CFD simulations, validating a system that aims to redefine propulsion efficiency in the large-yacht sector.

A cycloidal architecture for greater efficiency and control

ABB Dynafin™ is based on a cycloidal propulsion concept: a series of individually controlled vertical blades follows a trochoidal motion through the water.

This geometry delivers two results that are difficult to achieve with conventional systems:

            •          high efficiency across different speeds and operating conditions;

            •          very high maneuverability, a key characteristic for large yachts, particularly during mooring operations or harbor transits.

The collaboration between ABB and Oceanco made it possible to adapt and evolve the technology to the specific requirements of the superyacht industry.

The six-month testing program was carried out using a scale model provided by Oceanco.

The trials marked the final phase of a joint research initiative, with the Dutch shipyard contributing to the development and performance validation of the system for yacht applications.

“ABB Dynafin aims to combine efficiency and maneuverability,” says Marcus Högblom, Head of the Passenger Segment at ABB Marine & Ports. “This collaboration with Oceanco confirms the performance of the system and allows us to look ahead to future implementation with great interest.”

A hybrid platform: silent in harbor, efficient at cruising speed

The new system integrates seamlessly with hybrid electric-generation architectures, allowing for optimized energy management.

“In combination with batteries, the system enables a seamless transition from silent, emission-free navigation in harbor to high-speed cruising with generators running on methanol or HVO,” explains Evy De Maeyer, Research & Development Manager at Oceanco. “A versatile, efficient solution fully aligned with the evolution of the sector.”

The Dynafin system will not be exclusive to Oceanco, but the shipyard’s involvement highlights its commitment to supporting technological progress that can benefit the entire industry.

“Oceanco is proud to be part of this development, working alongside ABB to push the boundaries of what is possible in yacht propulsion,” says Paris Baloumis, Group Marketing Director.

The push toward more efficient solutions is strengthened by increasingly stringent environmental regulations, rising operational costs and the demand to reduce emissions without compromising comfort or performance.