The original design features two hulls symmetrically added to a traditional hull and this hull combination allows the boat to have less resistance making the boat faster and provides more stability to the vessel compared to conventional mono hulls.
The Trieadrieame is a patented hull form developed by Gerard Jelle Bilkert of Dutch design and engineering company AnwigemA together with Van Oossanen Naval Architects.
The design features two hulls symmetrically added to a traditional hull. This hull combination allows the boat to have less resistance making the boat faster and provides more stability to the vessel compared to conventional mono hulls, Bilkert claims.
Commenting on the benefit of the Trieadrieame hull, Bilkert says: “This hull form provides 30% less fuel consumption and is suitable for sloops and tenders ranging from 7.5m to 12.5m in length. Pilot boats, motorboats and workboats can also benefit from this hull as well as sailing yachts ranging from 12.5m to 25m.”
The Dutch Ministry of Economic Affairs and the National Foundation For Coordination Of Maritime Research have encouraged the idea several times by granting subsidies. Since 2011, the model has been optimised by Van Oossanen Naval Architects using advanced computer simulation software.
The Dutch hydrodynamics specialist has also tested the Trieadrieame hull. Van Oossanen also evaluated the design and performance of this hull and concluded the following:
- A 15m sailing yacht or motorboat with Trieadrieame hull is capable of reaching speeds in excess of 20 knots.
- When used for a sailing yacht, the vessel reaches greater speed potential at higher wind speeds than in the case of sailing yachts of conventional design.
- The transverse stability of this hull concept, for the lengths and displacements studied, is positive up to heel angles in excess of 90 degrees
- The upwind performance in the case of a sailing yacht, requires the generation of appreciable side force. This needs the incorporation of modest keels on each of the side hulls. These keels are not required in the case of a motor yacht
- The comparison of the resistance and power curves of the Triade concept when adopted for a motor yacht show favourable resistance characteristics, particularly at higher speeds.
The Trieadrieame hull form is now ready to be used. Bilkert says the model also offers certain flexibility and that new drawings can be made to satisfy client’s requirements.
The hull is made from light construction materials (i.e. synthetic wood, composite and aluminium) and steel but in a limited way.
“Building in aluminium does not require the moulds,” Bilkert explains, adding that the client can also choose plyester or other composite materials.
Bilkert is looking to partner with investors to build the first Trieadrieame hull boat. “Building a prototype is also an option,” he concludes.
The performance evaluation concept by Van Oossanen Naval Architects can be studied on the company wesbite.