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Multichine 36SK

The MC 36SK is a boat designed for those who seek a versatile and innovative cruising sail boat. Thanks to her ballasted swing keel configuration, she is at home sailing close hauled under 30 knots of wind in the open sea, or finding shelter in shallow waters inaccessible to most fixed keel cruising yachts.

The MC36SK is specified for steel or aluminium construction and, as metallic boats generally are, is extremely strong for her displacement, a much praised virtue for a truly cruising yacht design. The MC36SK is the perfect boat for a long distance cruise in comfort and safety, having a small family as crew, considering that employing the quick assembly method of boat building, for which the project was specified for; she can be built within a quite affordable budget, with great savings in men/hours involved in the construction.

The main features of this design are unquestionably her ballasted swing keel and her twin shallow-draught rudders attached behind skegs. The ballasted keel is operated by a hydraulic piston which pulls the keel by means of a spectra cable. This system allows free swinging of the keel in case of an accidental collision. This is an important safety factor, since whoever cruises for a long time knows too well that, sooner or later, has a good chance to collide unexpectedly with an underwater obstacle. The whole system is quite reliable and is practically maintenance free for many extended seasons. A locking device is provided to block the keel in its lower position when the boat is under way, sailing in deep water. This is a safety device, since in the most improbable case of a capsize, the keel will remain exposed ensuring the proper recovering of its correct position. The MC36SK is a class A yacht according to the European Union stability rules for ocean yachts. (STIX.) Contrary to the most frequent retractable swing appendices (centreboards) found in shallow draught cruising yachts, which have the whole ballast placed inside the hull, our solution comprises an amount of internal ballast (1300kg) and 1200kg weight in the swing keel. The combined weights, with 32% ballast ratio for 2.30m maximum draught, ensure a high vanity angle of positive stability, superior in many cases to those of the centreboard yachts available in the market, not imposing an excessive displacement to the design in order to obtain this result. When the keel is up, it is completely hidden inside a trunk which upper face is part of the saloon table, this way not interfering with the internal layout.

  The internal arrangement is very similar to the one we adopted for the MC34/36, which we consider the most functional for a thirty-six foot cruising sail boat. At first place, the cabin trunk with a dog-house enables proper headroom all over the walking area of the boat, a very important feature if you are going to live aboard for long periods.  We provided the main saloon with an U-shaped sofa at portside and a seat-berth to starboard, allowing up to eight persons to be installed for socializing or six ones to dine in comfort with plenty of elbow room. At the aft portside of the cabin trunk is placed a very spacious L-shaped galley, the best arrangement to be used under way. The boat has two double berth cabins, one forward and the other at the port quarter. The navigation station is positioned symmetrically to the galley, with the navigator stool facing forwards and a bulkhead in front of the table, to provide plenty of wall space for the installation of electronic equipment The heads with shower is placed abaft the navigation station. There is still a large compartment abaft the heads for storage of all the bulky equipment carried aboard, such as inflatable dinghy, gen-set, desalinator, spare sails, etc.

 The deck layout emphasizes protection for the crew when operating in bad weather. The cabin trunk with a solid or canvas dodger gives shelter to the foreside of the cockpit. We opted for one good sized wheel and two rudders.The tee-shaped cockpit is opened to the transom platform and the helmsman has to seats to choose, to windward or leeward. The mast steps on the coach-roof and is supported by a box-type pillar which hides the keel hydraulic lifting mechanism. The main sheet traveller is located  in the dog-house coach-roof leaving the cockpit  dodger free of the main sheet. The shroud chain-plates are attached to the topsides and consequently the working foresail does not overlap the mast. A short bowsprit where the anchor rollers are installed allows for the attachment of a furling gear for the gennaker at its end.

The masthead rig with two sets of spreaders and a generous sail area make the MC36SK a good performer in any sailing condition.