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This design is based on the hull of OC’s Generation 3 Class 40. This ‘open class’ hull type suits a cruising design in two significant ways: a) the hull is naturally high volume, excellent in terms of space for cruising, b) the large waterplane means the yacht has far less sinkage (the depth a hull sinks as cruising payload is added) than a conventional hull. The design is best described as a high latitude performance blue water explorer yacht. Her cruising ground is centred on Southern Chile and Patagonia. The client needed a fast short-handed cruising yacht that covers miles easily due to the length of the Chilean coast, distances between harbours and unpredictability of the weather.

He also required the yacht to be able to dry out on the beach, have a shallow draft, while still performing well. For this, OC designed a manual lifting lift keel and torpedo bulb, providing a minimum draft of 1.05m and max draft of 2.6m. The hybrid fin and deep sailing draft results in a relatively light sailing displacement of 6,500kg. The sail plan includes a modest pin-head mainsail of 54sqm. Further sail selection has been developed directly with the client and comprises of furling genoa and staysails on anti-torque stays along with an asymmetric spinnaker and furling code sails that tack to a 1.22m bowsprit. The bowsprit retracts into a tube within the anchor locker compartment when not in use.

Yacht lifting keel mechanism to enable shallow and shoal draft operation for an Owen Clarke designed custom blue water cruising sailboat

The anchor is over-sized for the yacht’s displacement and is mounted on a pivoting anchor launch and stowage mechanism. Deck layout is more cruising boat orientated with a single offset pit winch at the forward end of the cockpit under the expansive cuddy. Primary and secondary winches are at the cockpit sides and within reach of the helm, which consists of central helm seat with wheel steering driving through cables to twin rudders. The aft deck has been sized to allow an inflated tender to be stowed when cruising and retractable cleats for stern too mooring or running shore lines when anchored. The design concept and layout would also suit an aluminium construction, although with some reduction in performance.

Mechanical pivoting yacht anchor launch system and under deck stowage on a custom designed performance blue water cruising sailboat by Owen Clarke Design

Two double cabins, heads/shower, raised saloon seating for four and a fully equipped galley. All combined with the trappings of a cruising lifestyle including heating, refrigeration and pressurised hot and cold-water meant that some adjustments were required to our base point hull to ensure the desired levels of sailing performance. The structure is tough, resilient as one can imagine it needs to be to cruise where ice is a possibility and the weather can be unrelenting. The hull is epoxy, carbon and S-glass on foam core with sacrificial bow zone and watertight compartments fore and aft. The deck is also epoxy, carbon and foam core, with all chain plates in carbon composite not to reduce weight but to ensure that area remains watertight and to limit condensation internally.

Owen Clarke cruising yacht carbon composite hull laminate structure under construction at Alwoplast yachts, Chile.

To discuss your own particular cruising requirements contact: OC CRUISING

For an explanation of the technology behind the design process go to: NAVAL ARCHITECTURE

For an insight into our engineering and detailed design work go to: ENGINEERING

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