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Lutra 56 FORMIDABLE 3, offshore racer built by Goetz Custom Boats USA.
Built in carbon fibre, carbon fibre Hall Spars mast and rigging, extensive set of North Sails in
carbon/kevlar, B&G instruments, hydraulic lifting keel.
She has always been professionally maintained.
The structural engineering analysis is the responsibility of SP technologies. All
structural members are of composite construction for weight optimization. Weight and
mechanical properties are in accordance with the calculations of the designers and engineers.
The engineers have tested sufficient and representative structural test pieces. The construction of the yacht is aimed on lightweight and reliable construction in the spirit of the racing rules.
The construction uses a pre-preg Epoxy matrix, vacuum bagged for lightweight construction.
The total structure is post-cured to specification of SPt. High density core is used in high
loaded areas such as slamming, chain plates, bow, etc.
The hull is a male molded, vacuum bagged hull. The hull construction is full carbon prepreg fiber skins with either low density Nomex or balsa core. Where used, the foam is sufficiently pre-heated to prevent out gassing during post curing. The deck is a non-faired female molded vacuum bagged primered surface. The hull and deck are glued at the sheer line with interior and exterior taping to strengthen the joint. No bolts or fasteners are required at this joint. The hull is fitted with integrated composite chain plates for all shrouds with stainless steel pins. The mast collar is integrated into the structure and mast step. A single point hoist system is integrated into the keel. Structurally integrated code '0' and tack line fittings are installed in the bow.
Dimensions
New antifouling 2016
The keel is a vertical hydraulic lifting keel system. The keel is antimony lead bulb faired to high polished finish, bolted to a high tensile (Weldox or Dillimax-grade) steel keel fin. The keel foil is milled to the designer's sections. Templates have been provided to the owner. The keel box cylinder is structurally bonded to the hull and deck, supported by the adjacent structure. The keel box structure is a male molded winded UD carbon fiber with an E-Glass internal finished sandwich.
Keel has been overhauled 2016
Dillimax keelfin is protected against rust 2016