131 80 rounds per minute. The combined motion of the wheel and the blades generates propulsion and steering forces simultaneously, and can be optimised for different ship types, hull shapes and operational requirements. The ABB and The Ritz-Carlton Yacht Collection study found that Dynafin would yield significant hydrodynamic performance improvements for its latest cruise yacht, Ilma. The vessel required 12 per cent less propulsion power, achieving a 40-tonne weight saving and freeing up over 90 cubic metres of space for alternative use. Salmi also anticipates a strong operational profile that allows for longer service intervals, further reducing lifetime costs. The Ritz-Carlton Yacht Collection has agreed to continue providing ABB with operational data to support and develop the concept further. “We are committed to supporting developments that improve energy efficiency and thereby reduce the carbon footprint of our industry,” says Tobias King, vice president of newbuild for The Ritz-Carlton Yacht Collection. “The findings align with our expectations: a significant reduction in fuel consumption and air emissions on the itineraries we are planning for Ilma. “With the Dynafin concept, we also see other potential benefits linked to manoeuverability, position keeping, reliability and improved comfort for our guests staying onboard. We will continue our support of this technology development as it progresses further and will certainly consider this solution as we develop our future concepts as well as retrofits, if this becomes a possibility. We are also paying close attention to developments on sustainable fuels and working with other suppliers such as Chantiers de l’Atlantique, DNV and Wärtsilä to achieve this.” Salmi adds: “We are proud to have collaborated with The Ritz-Carlton Yacht Collection in a study that validates the Dynafin propulsion concept. We uncovered the benefits of increased propulsion efficiency, the potential for more efficient arrangement of guest and crew spaces, and savings of 710 tonnes of LNG fuel based on the ship’s operational profile and reduced propulsion power consumption.” The Ritz-Carlton Yacht Collection tested the Dynafin solution on its latest ship Ilma
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