Specialists in motion control for power boats and superyachts

DMS Holland to debut at METS with two unique roll damping systems

Next month, DMS Holland will make their debut appearance at METS showcasing two unique roll damping systems, AntiRoll and RotorSwing, providing solutions for both the marine leisure and superyacht market sectors.

AntiRoll is a roll damping system specifically designed for superyachts. Thanks to its unique, dual-axis fin stabilizer, which rotates whilst sailing and flaps at anchor, AntiRoll provides stabilization both underway and at zerospeed without any compromise of performance in either circumstance.

The curved, high-aspect ratio fin significantly reduces the drag by between 50 and 75 percent whilst sailing which in turn has a positive impact on the fuel consumption. In addition, with the fin flapping at zerospeed as opposed to rotating, a greater lifting force is generated providing a more stable platform. Of particular interest for sail yachts, the fin is also retractable and can be partly folded back in to the hull. This leaves only minor resistance whilst sailing – a feature welcomed by sailing enthusiasts and which solves well known problems related to non-retractable fins. AntiRoll uses an innovative hybrid drive system resulting in relatively low power requirements.

Based upon research carried out at Marin, the system has been proven to be superior over traditional fin stabilizer systems. AntiRoll has already been granted a patent and is currently in the PCT-route for international patenting. Both motor and sail yacht builders have shown great interest and the first application will be on a motor yacht currently being designed and built in The Netherlands.
More in-depth technical details and demo-models will be disclosed at METS held in Amsterdam next month, SuperYacht Pavilion Stand nr 10.321.
The second product, to be showcased at this debut appearance, is RotorSwing. This electric roll damping system for yachts up to 30 meters and the first of its kind in the industry, provides a unique solution based on the Magnus Effect: rapidly rotating cylinders which, subject to the direction of rotation, generate an up or downward pressure.

The biggest advantage of RotorSwing in comparison to a fin driven conventional system, is the greater roll damping at lower speeds. The rotors do not have any effect on the steering and therefore, unlike fin based systems, can be mounted at a position of choice. It is even possible to mount the rotor at the stern which, in particular for fast-moving yachts, may be preferable. RotorSwing features retractable rotors, eliminating the risk of damage and ensuring less resistance than fins.
The system is powered by a compact electric motor which requires little space for onboard installation. This, in combination with the rotors which can be mounted at a position of choice, means that it is not necessary or a problem if the installation of stabilizers is not taken in to consideration during the initial design and build stages. These product features, the fact that the system is available from stock and can be completely installed within 3 days, make RotorSwing ideal for retrofit installation and ensure that owners need never miss a weekend or part of their holiday again, even in the middle of the sailing season.