B&G Yacht Design

Boat Plans - Multichine 37 SK

Veleiro de alumínio para cruzeiro ilimitado com quilha pivotante.

The Multichine  37 SK is a boat designed for those who seek a versatile and innovative cruising sailboat. 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 Multichine  37 SK is specified for aluminium  or steel construction and, as metallic boats generally are, is extremely strong for her displacement, a much praised virtue for a truly cruising yacht design. The Multichine 37SK is the perfect boat for a long-distance cruise in comfort and safety, having a small family as crew.

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The suggestion to develop such a design came from potential clients of various countries, who asked for a boat of this type in the thirty-six foot range. The frequently asked question was:

Haven’t you a pivoting keel version for the Multichine 36?

With a low resistance hull shape and large sail area, the Multichine 37 SK is capable of obtaining good daily runs for its waterline, and still, it makes no concessions regarding safety. The design is rated Class A according to the European Community Monohull Stability Index (STIX) even when the keel is retracted!

Dados Técnicos

Comprimento total

11.28 m (37 ft)

Comprimento da linha d'água

9.78 m (32.0 ft)

Boca Máxima

3.85 m (12.6 ft)

Calado

2.30 m (7.5 ft) / 0.90m (3.0ft)

Lastro

2,580 kg (5,683 lb)

Deslocamento

8,000 kg (17,621 lb)

Tanques de água

450 l (119 gal)

Tanques de diesel

205 l (54 gal)

Pé-direito - Cabine de Popa

1.97 m (6.5 ft)

Pé-direito - Cabine de Proa

1.76 m (5.7 ft)

Pé-direito - Cozinha

1.92 m (6.3 ft)

Pé-direito - Chuveiro

1.97 m (6.5 ft)

Mastreação

Masthead Sloop

Vela grande

30.06 m2 (324 sq. ft.)

Genoa

43.38 m2 (467 sq. ft.)

Propulsão Auxiliar

40 hp

Método Construtivo

Aluminium or Steel

Lista de Planos

Ver Lista

MC37SK – S1 – Lines Plan

MC37SK – S2 – Mast and Sails

MC37SK – S3 – Interior Layout

MC37SK – S4 – Deck Layout

MC37SK – S5 – Structural Plan

MC37SK – S6A – Transversal Section A

MC37SK – S6B – Transversal Section B

MC37SK – S6C – Transversal Section C

MC37SK – S6D – Transversal Section Structure

MC37SK – S7A – Swing Keel System

MC37SK – S7B – Keel

MC37SK – S8 – Custom Details

MC37SK – S9 – Rudder Details

MC37SK – S10 – CNC Kit Assembly (Opt)

MC37SK – S11 – CNC Kit Files Layout (Opt)

MC37SK – S12 – CNC Kit Hull Plates Assembly (Opt)

MC37SK – S14 – Ballast Block Models

Descrição Técnica

Arranjo Interno:

We provided the main saloon with a U-shaped sofa at portside and a seat-berth to starboard, allowing up to eight persons to be installed for socializing or six 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 head with shower is placed abaft the navigation station. There is still a large compartment abaft the head for storage of all the bulky equipment carried aboard, such as inflatable dinghy, gen-set, desalinator, spare sails, etc.

Layout de convés:

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 two seats to choose, to windward or leeward. The mast is stepped 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 coach-roof leaving the cockpit dodger free of the main sheet.

The mast has a double back swept spreader with masthead genoa configuration, with generous sail area that makes the Multichine 37 SK a good performer in any sailing condition.

A short bowsprit where the anchor rollers are installed allows for the attachment of a furling gear for the gennaker at its end.

Swing-keel, rudders and propulsion:

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 Multichine 37 SK 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 (1500kg) and 1080kg weight in the swing keel. The combined weights, with 32% ballast ratio for 2.30m maximum draught, ensure a high angle of vanishing 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 Multichine 37 SK can also be built as a fixed fin keel yacht with a single central rudder, for those who do not need the shallow draft capability.

Ideal auxiliar propulsion will be from 40 HP.

The Multichine 37 SK is truly a go anywhere boat, developed with our many years of experience and the input from our most accomplished customers.

Comprar Projeto

Plano de Estudos

AUD$140

Planos de Construção (quilha retrátil)

AUD$1,460

Arquivos de CNC (versão quilha retrátil)

AUD$2,000

Planos de Construção (quilha fixa)

AUD$1,460

*entre em contato conosco para prazo de entrega

Arquivos de CNC (versão quilha fixa)

AUD$2,000

*entre em contato conosco para prazo de entrega

Fotos e Imagens

Outros Planos

VELEIROS - CRUZEIRO

Pop 20– 6.20 m (20.3 ft) costal sailing

Multichine 23 – 7.20 m (23.6 ft) costal sailing

Pop 25 – 7.54 m (24.7 ft) blue water cruising sailboat

Pantanal 25 – 7.65 m (25.1 ft) costal sailing, lifting keel, trailerable

Pop Alu 28 – 8.50 m (27.9 ft) blue water cruising sailboat

Multichine 26C – 8.74 m (28.7 ft) blue water cruising sailboat,

Samoa 28 – 8.80 m (28.9 ft) blue water cruising sailboat

Bora Bora 28 – 8.85 m (29.0 ft) coastal sailing catamaran

Multichine 28 – 9.20 m (30.2 ft) blue water cruising sailboat

Multichine 31 – 9.45 m (31.0 ft) blue water cruising sailboat

Pop Alu 32 – 9.88 m (32.4 ft) blue water cruising sailboat

Multichine 36 – 10.30 m (33.8 ft) /11.16m (38.1 ft) blue water cruising sailboat

Samoa 34 – 10.40 m (34.1 ft) blue water cruising sailboat

Cabo Horn 35 – 10.80 m (35.4 ft) blue water cruising sailboat

Kiribati 36 – 11.00 m (36.1 ft) blue water cruising sailboat, lifting keel

Samoa 36 – 11.00 m (36.1 ft) blue water cruising sailboat

Multichine 37 SK – 11.16 m (36.6 ft) blue water cruising sailboat, lifting keel

Multichine 38 Sport – 11.60 m (38.1 ft) performance cruising, blue water sailboat, lifting keel

Explorer 39 – 12.00 m (39.4 ft) blue water cruising sailboat, lifting keel

Aventura 40 – 12.27 m (40.3 ft) blue water cruising sailboat, classic style (contact us)

Cabo Horn 40 – 12.27 m (40.3 ft) blue water cruising sailboat

Multichine 41 – 12.48 m (40.9 ft) blue water cruising sailboat

Multichine 41SK – 12.48 m (40.9 ft) blue water cruising sailboat, lifting keel

Polar 44 – 13.41 m (44.0 ft) blue water and high latitudes cruising sailboat

Polar 44 DS – 13.41 m (44.0 ft) blue water with, lifting keel, deck saloon

Multichine 45 – 13.70 m (44.9 ft) blue water cruising sailboat

Multichine 45SK – 13.70 m (44.9 ft) blue water cruising sailboat, lifting keel (contact us)

Polar 50 – 15.28 m (50.1 ft) blue water cruising sailboat, lifting keel (contact us)

Polar 65 – 20.00 m (65.6 ft) blue water and high latitudes cruising sailboat, lifting keel

Southern Cross 77 – 23.50 m (77.1 ft) blue water cruising sailboat

SAILBOATS – RACING

Micro 19 – 5.47 m (17.9 ft) performance sailing, lifting keel, trailerable

Green Flash 25 – 7.50 m (24.6 ft) sail racing (contact us)

Green Flash 33 – 9.90 m (32.5 ft) sail racing, ORC 33 class

POWERBOATS & TRAWLERS

Diamond 6.0 – 6.06 m (19.9 ft) sundecker powerboat, trailerable

Pilotina 25 – 7.60 m (24.9 ft) displacement trawler, costal

Southern Voyager 28 – 8.70 m (28.5 ft) displacement trawler, costal

Corruira 33 – 10.10 m (33.1 ft) displacement trawler, costal

Corruíra 42 – 12.88 m (42.3 ft) displacement trawler, costal and blue water

PODAY SAILING, ROWING & DINGHIES

Caravela 1.7 – 1.70 m (5.6 ft) sailing dinghy, tender, free project

Little Nomad – 2.30 m (7.5 ft) sailing dinghy, tender

Caravela 2.5 – 2.55 m (8.4 ft) sailing dinghy, tender (contact us)

Andorinha – 4.71 m (15.5 ft) daysailer, pleasure sailing and racing, trailerable

Brasileirinho – 6.00 m (19.7 ft) ocean rowing boat

Pop Star 21 – 6.40 m (21.0 ft) daysailer, pleasure sailing and racing, lifting keel, trailerable