Comfort draft for semi-submersible yachts

Over the last 20 years, the motion at anchor has been a focal point in yacht design as it is considered a major cause of discomfort. The issue has been resolved with the development of smart and efficient active and passive stabilisation systems, which have flourished onboard all types of yachts.

Maybe because of the success of the active devices to reduce roll, less attention is given to the hydrodynamic properties of the hull itself, although there could be considerable advantages gained there as well. However, it is not easy to modify the hydrodynamic characteristics of a hull without performing major changes.

This potential innovation was further developed by changing the waterplane area while changing the draft enabling a reduction of 60% to 80% of the roll in the most unfavourable resonant conditions.

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March 23, 2018
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