Judel-Vrolijk launch 37ft lake racer

New boat has been optimised to race under ORC

Tuesday May 8th 2012, Author: James Boyd, Location: Germany

Judel-Vrolijk have launched a new 37 footer.

The project came about following a commision from an owner who wished to sail a fully optimised one-off racing boat in Lake Constance ORC regattas. Previous he had spent several years racing an existing production boat.

Judel Vrolijk comment: "To achieve such a goal, we were able to use most of the latest technical tools, materials and design developments coming from previous racing projects experience. Because of the sailing location, light wind and flat water condition were always the driving performance factor incorporating an ORC VPP rating system optimisation."

The 37 features a high aspect ratio rig and appendages, keel bulb and carbon fibre construction.  However as the boat is to be raced in light wind conditions on the lake under the ORC rating system, hull shape and crews position were optimised using Judel-Vrolijk's in-house CFD tool. 18 configurations, including four hulls type families were tested before the final design was chosen.

The choice of a big open cockpit allows a better ergonomics for the deck hardware while the low profile coachroof is incorporated onto a large radius deck to improve the layout for the running rigging layout and improve aerodynamics. To achieve a clean deck, sails purchase line systems are fitted below deck, insuring maximum control with minimum friction.

The interior structure is both stiff and light while remain open for crew to work below and handle sails.

Based at Lake Constance, Speedwave was in charge of the overall construction process of the 37, using in-house pre-wetted carbon fibre and lightweight foam core. The hull and deck moulds were fully milled in addition to the bulb and keel parts. The rig and sail plan were designed and a tuning guide were developed in close corporation with North Sails and Southern Spars.

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