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Catamarans and Trimarans

Catamaran and Trimaran Boat Plans make it a reality to build your own catamaran or trimaran. Multi-hulled sailing vessels are a special class of boat. A very different mind set is required when thinking about sailing a multi hull, let alone getting your head around building one.

There are some unique challenges building a multi-hull sail boat, the extra beam added by each hull for instance can create storage issues while under construction. Hartley boat plans make the build process straight forward for even amateur builders. However with all things considered, building a multi can be an amazing journey.

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Fast Twin Catermaran

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Lively 28 Cruising Trimaran

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Lively 35 Cruising Trimaran

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ECO 55 Power Cat Plans

ECO 55 Power Cat Plans

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Description

Additional information.

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The ECO 55 power catamaran is an affordable DIY power catamaran. As the owner proved the boat is a capable coastal cruiser. The inside layout is the same as for the ECO55 sail version but the underwater shape is changed. The cockpit is wider and has a size of 1,45m x 2 m. With the bigger size normal deck chairs can be used. With a cockpit cover two more can sleep on the boat.

Accommodation is simple but practical.

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Because of the easily driven hulls the boat will travel at about 12 knots with the a 15 HP outboard engine. But practice showed that a single outboard of 20 HP is more feasible - less noise and lower operating costs.

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The boat has a double bunk, but the cockpit is big enough to sleep 2 more persons. The construction and list of materials is similar to the ECO55 sail version . The difference is that you need no rig, rudders or dagger board. With the low weight of about 325 kg including engines the boat can be towed behind a relative small car.

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Construction is as always the plywood/glass/Epoxy construction system. The hulls are V-shaped with vertical sides - easy to build by a beginner. For cost estimation see the list of materials below.

  • All drawings are CAD drawings
  • Wood/epoxy composite for easy construction and low maintenance.
  • Sleeps up to four
DELIVERY: 16 Drawings: JPG or DXF files. + Manual: 12 pages description (PDF)

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L.o.a.-5.50 m
Beam-2.50 m
Draft-0.22
Weight-275 kg
Weight max. CWL-620 kg
Outboard engines 2x-5 hp
1x-15 hp

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James Wharram Designs

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Self build boats.

A philosophic attitude behind the Wharram designs is that 'urban man' can, with a little financial saving and some handcraft work, create an object of beauty. This object of beauty can then, for a period of hours, days, weeks or months, carry him/her out of the urban world into a natural never-never land; the seas and oceans; to a time when the world was young; when Mankind was directly and intimately interacting with the beauty and power of nature. There are hundreds/thousands of Wharram builders or, as I prefer to call them, "Sea People", who have done or are now doing that!" - James Wharram
A well built Wharram design is a 'Functional Kinetic Sculpture'" - Hanneke Boon

A woman working on a large boat

Everything you need to build your own sea-going catamaran: 3 steps

  • Familiarise yourself with our range of designs and their unique qualities. For more detailed information read the Wharram Design Book which reviews each self-build boat model and offers a detailed introduction and understanding of the world of self-build catamarans.
  • Order one or more sets of our Study Plans and immerse yourself into the boat builder's mindset; evaluate the costs; the amount of time required to build your boat; where you will build it and where you will eventually launch it.
  • Once you have decided on the boat that is right for you to build, order the Boat Building Plans and become a member of the global family of Wharram builders and sailors. You can build a Wharram with very little experience . All Wharram building plans are drawn for the first time builder, so anyone with a modicum of practical ability can build one of our designs. Our Building Plans present quality instruction, guidance and advice for both novice and professional alike. They are all based on decades of actual building experience and thousands of ocean miles sailed, so you can be confident in your boat's capabilities and safety.

Tiki Designs

Tiki 46 sailing on a coast of rolling hills, with all sails up.

Coastal Trekkers To Long Term Live Aboards

From the car trailable Tiki 21 - winner of the 1982 Cruising World Design Competition, to the Tiki 46, a spacious ocean cruiser or charter boat, the TIKI range offers car trailable coastal trekkers to long term live aboards . Although a Tiki 21, a very popular coastal trek design, has circumnavigated, we would not recommend this for everyone! A number of Tiki 26s have also made ocean crossings, but again this is only for the experienced sailor. The larger TIKI designs of 30ft and over are craft capable of longer voyages and ocean crossings. They are designed to be less costly to build by using appropriate wood/epoxy technology and by eliminating, wherever possible, expensive metal fittings common to modern yacht design.

On the larger TIKIs the 'Deckpod' offers sheltered steering and the 'Stern Ramp' provides easy access to and from the water. The TIKIs are boats you can work and live on. The Wharram approach goes beyond simple boat design - the concept of 'Flexispace' puts emphasis on not just the physical living area, but also the 'mind space' of those on board.

Hitia Designs

Three Hitia 17s with colourful sails on the beach

Affordable Weekend Adventure Boats

The Hitia Designs are the perfect beach catamarans . They are 'coastal trekkers' and cater for those who do not want a craft for long distance or "blue water" sailing, but would like to be able to trail their boat to varied interesting coasts and lakes. Their easy economical construction, stability and speed makes for affordable weekend adventure boats . The Hitia 14 can be carried on the roof of your car and fits on the deck of a larger boat. The Hitia 17 has more stowage space and room for a tent on deck for longer excursions. These boats are ideal for small adventures and coastal treks.

Introducing: the Mana 24 'Cat Kit'

Mana 24 with decktent

Boat In A Box

The MANA kit is sold with all the plywood cut out by CNC cutter and pre-coated with epoxy, so building the boat at home will be a bit like assembling a flat-pack . All the parts slot together perfectly so a hull can take shape in a day. Building from such a kit takes away the worry of measuring and cutting all the boat parts , which can be quite daunting to many first time builders and saves a lot of time in the early stages of building. In designing the MANA, we looked sideways into the world of camping and have combined the innovative CNC cut "flat pack" boat-building concept with the philosophy of outdoor living to create the unique MANA camper-sailer, specifically designed for trailer sailing.

The ply parts will have a first smooth coat of epoxy already applied, cutting down time in coating and sanding, so within a short time you will be able to assemble the hulls and see the boat you are building. As she is built from a pre-cut kit, we have been able to give the Mana more complex and beautiful shaping, giving her more interior volume than the Tiki designs.

Pahi Designs

Distant photo of Pahi 63 Spirit of Gaia with all sails up

The More Evocatively 'Female' Of The Wharram Designs

From the Coastal Trekking Pahi 26 to the impressive 63' flagship of the Wharram fleet 'Spirit of Gaia' - the PAHI shape is more evocatively 'Female' than the Classic Wharram designs. They are a different visual/sculptural approach to the basic design elements inherent in the Classic Designs. Constructively, they are simpler to build, using epoxy fillets instead of more difficult wood joints . They are designed to use quick growing softwood plys, coated and glassed with epoxy to achieve a durable finish. The PAHI designs were the first to use rope lashings to attach the crossbeams, giving a shock absorbing effect, without the need for metal fittings. 'Pahi' in Polynesian dialects means 'ship'.

The Pahi 42 'Captain Cook' design set fresh ocean cruising standards when she was designed in 1979. The Pahi 63 was designed in 1986 and launched in 1992 to become the new ocean going flagship for the Wharram family. During the construction of 'Spirit of Gaia' many unique new solutions to plywood and epoxy building methods were developed, which were later incorporated in the larger TIKI and ISLANDER designs.

Ethnic Designs

Amatasi being sailed by two people, deck view from stern

Traditional Pacific Sailing Craft

The Ethnic designs have been a new development at James Wharram Designs since James and Hanneke sailed extensively in the Pacific. With everything self-made these boats are lower cost to build . They cater for those who want a "traditional" Pacific sailing craft, built using appropriate modern materials and methods, but without trying to Westernise them. These designs arose after requests from Pacific Island peoples for James to design craft to overcome shortages of "traditional" building materials, but which closely reflect the cultural and ethnic origins of these craft.

Classic Designs

Red and white Narai Mk IV at anchor

The Early Wharrams - Sturdy and Stable

The early 'Wharrams', now known as the Classic Designs, are recognised as beautiful, safe boats - easy to build, and easy to sail . Many anchorages around the world are graced by these Classic Designs, and of the seventeen drawn between 1957 and 1976, nine are still available, from the 16ft Maui to the 51ft Tehini. They were the first range of Wharram catamarans, designed in the 1960s and 70s, based on the sea experience of James Wharram's pioneering ocean crossings. They are sturdy, very stable, but relatively basic in design. They are built using simple plywood construction over a backbone and bulkhead frame .

 

Ed Horstman designed TRIMARAN and CATAMARAN plans are drawn for the first time builder. Plans are concise and clearly drawn so the builder can easily follow each building step. Designs are continuously updated with your input and new ideas. Plans include full size patterns to 63'. The larger TRI's and CAT's have full radius hulls.With no lofting you build right away. The DESIGNER'S book TRIMARAN and CATAMARAN CONSTRUCTION is part of the plans (over 21') and covers all phases of construction. Plans are leased to build ONE boat, NO time limit. Tri-Star designs are proven designs, sailing the seven seas since 1964. Free consultation is provided to the original non-professional builder till he or she is sailing the seven seas. All boats may be built with flared hulls, with the exception of the TRI 25, TRI 26MT, CAT 27PC and the CAT 27. A DESIGN FEE for customer modifications to stock plans.






TRI-STAR 18 Study Plans 20.00
TRI-STAR 18 Plans 175.00

TRI-STAR 24

Tri-star 25.

TRI-STAR 25 Study Plans $40.00 Add To Cart TRI-STAR 25 Plans $550.00 Add To Cart

TRI-STAR 26 MT

Tri-star 27-9, tri-star 31, tri-star 31 cm.

TRI-STAR 31CM Study Plans $40.00 Add To Cart TRI-STAR 31CM Plans $600.00 Add To Cart

TRI-STAR 32 XR

TRI-STAR 32XR Study Plans $40.00 Add To Cart TRI-STAR 32XR Plans $600.00 Add To Cart

TRI-STAR 35

TRI-STAR 35 Study Plans $ 40.00 Add To Cart TRI-STAR 35 Plans $ 650.00 Add To Cart

TRI-STAR 35 XR

TRI-STAR 35 XR Study Plans $40.00 Add To Cart TRI-STAR 35 XR Plans $700.00 Add To Cart

TRI-STAR 36

Tri-star 37 xrc.

TRI-STAR 37 XRC Study Plans $ 40.00 Add To Cart TRI-STAR 37 XRC Plans $ 800.00 Add To Cart

TRI-STAR 38 / 39

Tri-star 40 lw, tri-star 42, tri-star 43 xrc, tri-star 43 mc, tri-star 44 lw, tri-star 45, tri-star 49, tri-star 50, tri-star 51 mc, tri-star 54, tri-star 60 / 63, tri-star 65, tri-star 80, tri-star 104.

Email us for availability and prices

  • Aluminum Boat Plans

35 FT Catamaran Workboat (616)

36 x 12 cat 2.jpg (1)

This design (plan) is a 35 FT aluminum catamaran. Power is two (2) Volvo D4-225 DP I/O at 189 HP each.

Gross weight and speed dependent on final arrangement.

*The above price is for the construction plans and a onetime use of the CAD cutting files.

Weight in table above is the weight of the uncut aluminum sheet and plate.

Stock hull is the flush deck shown on the included PDF drawing. Cabin and bullwork are available options.

Cabin and bullwork is not included in the aluminum sheet and plate weight calculations.

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We know that Owen Clarke Design are not the first office that comes to mind when thinking of multihull designs. However, we were first before anything else trimaran designers long before moving into the field of high performance monohulls with the development of Open 60s such as Kingfisher, and Ecover. Bare with us and please take the time to read the paragraphs below. They serve to illustrate our extensive and largely unknown background in trimaran and performance catamaran design to the media, interested parties, existing and future clients.

We look forward to meeting the client who's interested to tread a different path and wants something innovative and exciting, while at the same time using experienced designers and engineers. If you might be that client and wish to begin that discussion contact us

For more information on our 24m design go to:

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

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

And for those that might be interested, three videos from the 90's from three classic British multihull events:


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Characteristics, technical specifications.

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Ideal ocean-going catamaran with a concentration of know-how

Request information.

Ultimate comfort without compromising on performance

An overachiever, pushing the boundaries of blue-water cruising

Over 35 years of experience in the design of offshore sailing catamarans and millions of miles covered on every ocean allow us today to present an exceptional blue water cruising catamaran.

The best naval architects and designers have been able to work in complete freedom to achieve the ideal compromise between quality of life, performance and sailing comfort, all combined into one ocean-going catamaran.

The Outremer 55, a 55-foot liveaboard catamaran, is easy to maneuver, whether short-handed or even solo. It offers living spaces, circulation, light and ventilation that set new standards.

Download the brochure

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Innovations that make life easier

This ocean-going catamaran offers it all. Tilting helms to combine steering pleasure, visibility and perfect protection from the elements. Whether you want to enjoy the view of the water and your sails, comfortably installed on the double bench seat, or protected from the elements in the cockpit, you keep perfect control of the boat. Comfortable seating on each side, standing supports in the middle position, or even sitting sheltered in the cockpit, you’re sure to need thousands of miles to decide on your favorite helm position! To each his own…

Easy movement and unobstructed views

With its wide saloon opening on the cockpit, its flush floor and its bay windows disappearing completely behind the coachroof bulkhead, the Outremer 55 has been designed to ensure ergonomic continuity of space and make moving around on board easier.

The 360° view from the saloon and cockpit allows exceptional visibility of the water and the environment, and greatly contributes to comfort on board. From the chart table, of course, but also when cooking or during meals, the forward vision is never interrupted. A crucial factor for a serene cruise on your ocean-going catamaran!

A central island that can be transformed into a high table

Nothing is more pleasant than preparing a meal, having drinks and entertaining around the island table, which offers an extra sitting area thanks to the fold-up shelf.

Architects VPLP Design
Design consultant Patrick Le Quément
Interior design Darnet Design
Length 54.9 ft
Beam 27.2 ft
Draught 4.4/ 7.5 ft
Air draught 80.7 ft
Displacement 13.9/ 18.5 t
Sail plan
- Mainsail
- Genoa
- Selftacking jib
- Gennaker
- Spinnaker
 
104 m2
68 m2
48 m2
140 m2 (option)
220 m2 (option)
CE approval 8/ 26 p
Engines 2 x 60 HP

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Testimonials

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« Cat Greatcircle » Marijke and Mark

Former owners of a Lagoon 52, this Dutch couple is more than happy to continue the adventure on an Outremer 55, which was delivered to them in 2021. Looking for comfort and sailing pleasure above all, they are delighted by this 55-foot catamaran, which combines performance and ergonomic innovations that make her both comfortable and easy to maneuver.

Do you have any questions?

Can you add tillers to the outremer 55, is an electric version of the outremer 55 available, why did you redesign the deck seat.

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Beyond building your boat, Outremer brings your dreams to life by being by your side at every stage of your project. To always better support you, we have created Outremer Services. This structure, integrated within Grand Large Services is able to meet all your needs, from the start of your project to the resale of your catamaran.

Seminars on the theme of blue-water cruising, training on land and at sea, charter, concierge services, refit, a network of approved partners around the world, OCM ™ e-maintenance and lastly brokerage. We offer complete and personalized support according to best fit your needs.

Impatient, not sure you can invest in a new catamaran or simply curious? See our latest second-hand boats on offer. Please note that the demand is high, don’t wait to contact us.

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From the legendary Outremer 45 to the acclaimed Outremer 55, not to forget the 51 and the 4X, you will find a wide range of Outremer catamarans to charter, depending on your model of interest.

Yachting World

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Catamaran cruising: everything you really need to know

Nikki Henderson

  • Nikki Henderson
  • September 21, 2022

Expert skipper Nikki Henderson reveals what you really need to know before going bluewater catamaran cruising

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It has become routine now for me to bookend the summer sailing season with a trip to the south of France for the biannual ‘Outremer Week’. This hugely popular event gathers 100-plus new Outremer catamaran owners for five days of training, both in the classroom and on the water, and three days of friendly racing. The goal is to educate future owners so they are as prepared as they possibly can be for their upcoming bluewater catamaran cruising plans.

It’s an intensive week of 12-hour days, with a lot of information to absorb. Unsurprisingly there are some discussions specific to bluewater catamaran cruising that come up repeatedly, and they apply to owners or prospective owners of all brands of bluewater multihull. Here are some of the most common questions people ask me:

What sails should I buy for a cruising catamaran?

Every day after sailing a new catamaran owner will come up to me and say, “Nikki, I’d love to take up some of your time and rack your brains about sail selection .”

To pitch my advice appropriately, I always ask some key questions about your catamaran cruising plans, and I’d encourage you to ask yourself the same.

What is your route plan?

Tradewind sailing will be predominantly downwind. So, focus your attention on downwind sails. A route involving more upwind requires more focus on headsails. Routes involving more upwind tend to be more coastal routes, or schedules with strict timings that will reduce the option to wait for downwind weather windows.

All bluewater sail plans will need storm options. Three reef points in the main is a must, or at the very least an extremely generous second reef. A storm headsail is another key component. Ideally it should be possible to hoist the storm jib up over the top of your furled foresail. In very big conditions, reliance on the thin furling line gets quite nerve-racking.

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Catamaran cruising sail options range from symmetric spinnakers to Code sails for reaching performance. Photo: Nicolas Claris

How performance-orientated are you?

Performance catamarans  are designed to sail angles downwind, ideally with an asymmetric spinnaker wardrobe. However, there is a cost to the incredible speeds that you can attain reaching on these boats: comfort. So, a key question is what is your attitude to speed versus comfort?

Performance-focused sailors are typically racing sailors, sailors without kids, or sailors who are in good physical shape. If you fit this category, then I’d advise purchasing one heavy weather flat-cut asymmetric sail that can withstand a squall up to 40 knots, and a rounder, lightweight sail that you can sail quite deeply in light to moderate conditions.

If you don’t have a taste or attention span for speed, then one heavy weather symmetric spinnaker (approximately up to 40 knots TWS) should be enough. This will allow you to sail a rhumbline course, and make night-time take-downs less of a worry because the kite will survive a squall.

For upwind, if you will enjoy fine tuning your boat to get that extra half a knot, your ideal option is a large genoa for drive in light to moderate conditions, and a small flat blade-shaped jib for heavier conditions – small enough that it does not need to be furled to an inch of its life to cope with a Force 6. If an inner forestay is an option, the latter could be a staysail which will keep the centre of effort low and reduce sideways drift.

For anyone less performance orientated in their catamaran cruising, the key for upwind sailing is a strong, flat jib that is not too big. Mark three reef points on the foot with sail tape. Keep an eye on how much it stretches and don’t be surprised if you need to change it every few years to avoid losing 5-10° of height.

Downwind the tradewind route logic applies: performance sailors should invest in asymmetric and non-performance sailors in symmetric spinnakers.

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Left: taking videos and photos to remember key points of spinnaker handling technique. Photo: Robin Christol/Outremer

Who’s the crew?

At this point, the conversation often goes full circle. Sailors get enthusiastic about performance, and then remember that the kids will need home schooling, or that this is a retirement plan with potential health and fitness considerations.

Most sail changes will require more than one person, and conditions at the bow can be bouncy. Crew also have to be able to sleep, cook, and live on the boat while it is thrown about. If you are short-handed, you could compromise for downwind sailing by choosing furling sails.

A furling asymmetric such as a Code D can replace the ‘hoist and drop’ asymmetric. Or you can make the sock line on a symmetric long enough to route back to an electric winch.

Upwind sailors could compromise by returning to a single jib and consider altering routing to sail slightly off the wind but faster; optimising for VMG. If you have a staysail, ensure it could be furled and therefore left rigged at sea – though make time to speak to the yacht designer about the impact on stability that having two heavy furled sails up continuously could have on the boat.

How ‘eco’ and time-conscious will you be?

Do you care about motoring? Increasingly for many of us, awareness of climate change is a strong motivator to avoid using the engine. And will you be more focused on the destination or more interested in the journey?

If you are keen to avoid motoring, and you are free of time constraints such as fixed crew changeovers or grumpy children who need to stop and swim, then I’d recommend you invest in a Code 0. A Code 0 can double or even triple the boat speed: in 6 knots of wind, an Outremer will sail at 2-3 knots with a jib, but 5-6 knots with a Code 0. It’s a great sail and worth the investment, but first work out if you will use it. They often have low wind limits – around 15 AWS – which upwind could be 10 knots TWS.

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Code sails for reaching performance. Photo: Balance Catamarans

When do you reef a catamaran?

Many bluewater cruisers will reef down before dark every night. I’m not a huge fan of this as a rule; reefing should be straightforward enough to not be an intimidating manoeuvre in the dark.

But all new catamaran owners who are planning to go bluewater cruising are concerned about knowing when to reef, especially if they come from monohull sailing, as a catamaran communicates whether it is overpowered or not in a much more subtle way.

You want to conserve your equipment while sailing the boat effectively. So aim for the least amount of sail necessary to achieve your target speeds and angles. The best way to get to know this is to put reefs earlier or later each time and take note of whether it was beneficial or not. Over time you will know your boat very well.

Sailing favours guidelines over hard rules, but it’s good to have a starting point so here are some general ranges. For more cautious sailors or bigger sea states, use the more conservative side of the wind range:

  • Reef 1 in at 15-20 knots TWS
  • Reef 2 in at 20-25 knots TWS
  • Reef 3 in at 25-30 knots TWS

Note that I am using true wind and not apparent. When sailing downwind it’s tempting to fly more sail because the apparent wind is so low. However, if you need to turn upwind – perhaps to reef – the 12 knots AWS in 20 knots TWS will quickly become closer to 25 knots AWS.

Reliance on numbers is great until the wind instruments stop working (it will happen at some point). Remember your RYA Competent Crew course and use the descriptions of the sea surface at various Beaufort Scale forces to identify how windy it is.

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How to share roles is a frequent question among couples planning a catamaran cruising adventure. Photo: Robin Christol/Outremer

There are other telltale signs that the boat gives if she needs a reef. Although hulls don’t fly unless you are at the performance level of a Gunboat or similar, you may feel the windward hull just slightly lifting. This is a sign that a reef might be needed. Another is if the bows are diving down when you are sailing downwind. Heel angle can be most obviously sensed while lying down.

The main hindrance to learning when to reef – and when not – is a hesitation to perform the manoeuvre. If taking a reef feels arduous, people avoid it. I admit I can find myself in this camp: I have to remind myself that it’s a win/win, either it’s the right decision and the boat sails better, or it’s wrong and I’ve learnt from it.

The key to reefing is to practice. Taking a reef should be possible to do in under two minutes, especially if you have fast electric winches.

It’s handy to have the option to reef downwind, especially if you’re tradewind sailing. Fully battened mainsails struggle to come down so set up downhaul lines from each reef tack point. Run them through the reefing point on the sail and through the reefing points on each side of the mast so the sail is pulled down in line with the track. Watch out for chafe on the back of the main if reefing a lot downwind, and add spreader patches to your sail where applicable. Centring the traveller during the manoeuvre can help, but keep your eyes looking up and check nothing is getting caught.

Also practice  solo reefing ; aside from the possibility of needing to reef alone, this also builds a big picture understanding of the whole manoeuvre. It means reefs are put in faster because anyone can work anywhere.

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Catamaran designs at the ARC start cover a full spectrum of performance. Photo: James Mitchell/WCC

How can couples close the ‘experience gap’?

The argument for both halves of a cruising partnership being competent on board has always been that if something happens to the skipper, their partner will know how to safely get to a port of refuge.

However, most people assume that this will simply never happen to them, or they practise parking a couple of times, pick a fender out the water – then never think about it again. The difficulty with starting a bluewater sailing project with a large experience gap is that it tends to widen over time. Each day as leader will be a learning opportunity for the skipper.

They will grow in competence and confidence. Meanwhile, the first mate’s skills will suffer. They will get used to following instructions, their confidence will decrease, and a habit of helplessness will develop. Then, when an emergency does occur, they’ll be in a worse position to take charge than when they started.

It’s critical that couples approach buying a bluewater catamaran for cruising as a team exercise from day one – for both safety and enjoyment. Ideas on how to level up your partnership include:

  • Rotate roles each day, or follow a rota. Who drives the boat into dock? Who makes the navigation calls (do this passage by passage)? Who does the safety checks? Who runs the watermaker?
  • Divide the boat – maintain one hull each and share the saloon. This forces you to both understand how everything works from bilge pumps and engines to steering gear and gear storage.
  • Take a coach with you for the first few crossings. It can be hard to learn to sail from your spouse. A professional coach will force you into a learning environment. They will also create space for the less experienced to be able to take charge in a safe way.
  • Sail the boat without your partner. Creating a scenario where your leadership role feels natural is the optimum way to practice skippering. So, invite a few friends who don’t know as much about sailing as you, and go for a low pressure cruise. It’s a brilliant confidence builder, and a chance to develop your own style and your own voice on board.

plan catamaran offshore

Do you have the skills for a faster cat? Photo: Rick Tomlinson

Production or performance cruising catamaran?

A common view is that you pay more for less when you buy a performance catamaran: fewer creature comforts, less living space, fewer berths, bathrooms, and instead get narrow hulls and sparse design. So, is the big price tag worth the upgrade in performance?

If you are lured by the comfort of a production catamaran, but plan to sail intensively around the world for the next five years, it might not actually be the most comfortable option. No dishwasher or air conditioning is going to make a boat feel safer in a storm. Conversely, why buy a performance catamaran if you plan to leave the boat at the dock for 10 months a year?

Ask yourself if you have the skills to harness the performance of a faster catamaran? And if not, how prepared are you to invest time into learning how to use the boat to her full potential?

A common justification for buying a performance catamaran is that it can outrun bad weather and therefore is safer. But you cannot take advantage of that option if you sail everywhere with three reefs in the main because you are nervous of the boat’s power.

Similarly, the power of performance catamarans comes in part from how light they are. If you load the boat with extras – personal gear, kitchen appliances, heating, aircon – you will quickly reduce a lot of the speed and safety advantages you’re paying for.

plan catamaran offshore

The dream – catamaran cruising in paradise! Photo: Robin Christol/Outremer

How to handle heavy weather in a cat?

A popular heavy weather strategy is avoidance: account for global weather patterns when planning your passages to ensure you sail during the more favourable months; invest in a good satellite connection to download accurate forecasts so you can see bad weather coming; use your boat speed to position yourself out of the predicted storm track; be flexible with departure windows and leave at an optimum time.

However, do not misinterpret avoidance of heavy weather as a safety net. With weather systems becoming increasingly extreme and unpredictable (see page 38), this risk management strategy is becoming less and less dependable.

  • Develop scenario plans for the type of boat you have so that you don’t have to start with a blank sheet of paper as a storm approaches.
  • In all scenarios, on all boats, avoid 90° wind and waves. Your boat is at its least stable in these conditions. Sail with the weather forward or aft of the beam.
  • Keep an eye on heel angle. Reduce sail if you start to see any more than 5° or so, unless you have a catamaran that is designed to lift a hull. Lower the centre of effort by reducing sail, starting with the main.
  • Set up and practice how to reef downwind in case the weather comes in more quickly than you were expecting.
  • If you can’t sail as fast as the waves, consider trailing warps to slow you down and help with steerage. You should aim to keep the speed relatively high. The key is to reduce the erratic surfing which drops the bows into green-water troughs. I prefer warps to drogues where possible because we are more familiar with them. Unless you practice using a drogue regularly, you will likely need to read the instructions when you get it out, which isn’t ideal in an emergency.
  • If waves are breaking over your stern, consider turning into the seaway and holding steady. In a performance cat, you can drop the windward daggerboard, lift the leeward board, and pinch into the wind. In a production cat with no daggerboards, this will be difficult. Running the leeward engine might help you keep your bows into the wind. Watch that there is no back flow of water into the exhaust.
  • Avoid lee shores at all costs, sea room downwind is key.

plan catamaran offshore

Outremer Week crews receiving coaching on sail handling. Photo: Robin Christol/Outremer

When should we go?

How long should you wait after buying a boat before heading out on your first bluewater passage? Whether you spend £100,000 or £1,000,000 on your boat, it’s likely to need some fine tuning. I’ve never heard of a new boat that was perfect.

Some yards will cover the initial issues as part of the warranty, so staying close to the yard is a good idea within that period. Even if you don’t have a warranty, proximity to the yard can help you access parts, boat builders and people who understand how your boat has been constructed.

The flip side is that you want to get going, and experience all the freedoms of your new yacht! Some serious bluewater sailing is also needed to test some of the systems.

Give yourself two to six months before you head out on the first crossing. This is enough to test the boat out, but not so long that ‘passage-anxiety’ builds up and you never actually leave.

Do not treat the first few months as a holiday. This is commissioning, and it is the last stage of the build. Test the boat as rigorously as you can before you leave the proximity of the yard. Complete a couple of substantial offshore passages of 48 hours or more to test the systems. Run everything, including the watermaker. Fly all the sails you own. Sail in fruity conditions relative to your ability (Force 6-8 as a guideline) to see how the boat (and you) cope.

plan catamaran offshore

Women’s only coaching groups for catamaran cruising sailors help bridge the ‘experience gap’. Photo: Robin Christol/Outremer

Get some experienced people on board to bolster the crew for the early days. The ideal is to hire a professional coach, as this will make pushing the boat much safer and more fun for you.

Do some training ; the MCA AEC four-day engine course is a really useful opportunity to explore the parts of the engine you are normally too nervous to. A safety at sea course is worth its weight in gold. Use this to put together a safety kit that you feel confident in and that is appropriate for your cruising plans. A basic maintenance course can also be helpful, ideally one that covers beginners’ sail repair, rigging, splicing, and electrics.

Ask other sailors for a good tools and spares inventory list. On top of the standard parts that the equipment manuals recommend, current and previous owners of your boat model will have a plethora of advice.

Confident to cast off

Preparation for any type of bluewater sailing can feel daunting. Training courses and cruisers’ seminars like Outremer Week are a little paradoxical – learning how to insert an IV line in a morning medical session, then toasting your upcoming lifelong dream in the evening. It’s a bit like watching the flight safety demonstration before taking off on a once in a lifetime holiday.

The reality is that bluewater sailing is the most incredible opportunity in the world to be both savoured, and treated with an appropriate level of respect. But the most rewarding thing is to see sailors’s enthusiasm grow as they learn. With the opportunity to make mistakes and ask questions in a supportive environment, everyone develops their own skippering style and mantras.

Knowledge nurtures confidence, and confidence breeds positivity – which all contribute to a safe, and successful bluewater catamaran cruising experience. If in doubt, ask!

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  • This Speedy 70-Foot Power Catamaran Is Designed to Cut Through Rough Waters

The 70-foot T-2000 Voyager can hit 60 mph in flat conditions, and then take waves up to 30 feet.

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Safe Haven T-2000 Voyager Luxury Catamaran

Back in April, Storm Kathleen slammed into the west coast of Ireland as a fearsome Force 10 gale, packing 70 mph winds and 15-foot waves. While locals sandbagged their homes and prepared for the worst, Frank Kowalski decided it was a swell day for a boat ride.

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Safehaven Fast Power Cat

Evolved from Safehaven’s 75-foot XVS20 monohull launched in 2018, Kowalski used his expertise in building commercial, work-boat power catamarans to design the twin-hulled T-2000 Voyager to offer speed with stability.

“The stability in beam seas is what’s key here,” he says. “While we were out recently in a Force 8 with 40-plus knot winds and 12-foot seas, we were able to stop and leave the boat to drift while we retrieved a drone. It just took the waves on the beam with ease. In a monohull, it would have been rolling so badly you couldn’t have stood on the deck.”

Then there’s the sheer velocity that comes with twin, scalpel-thin hulls slicing through waves. With the T-2000’s pair of 1,550 hp MAN V12 diesels driving France Helices SD5 surface drives, the Safehaven can hit a top speed of 57 mph. 

Safehaven Power Cat

“It’s just the most amazing sight, standing on the stern, watching these huge roostertails behind,” Kowalski adds. “We’ve also incorporated retracting swim platforms so you can see the props spinning on the surface, plus valved exhausts that switch between silenced and straight-through. The noise from those V12s is sensational.”

His hull No. 1 demonstrator boat has all-diamond-quilted marine leather, well-finished cabinetry, colored LED lighting, and below-deck accommodations for six in three cabins. Hull No. 2—already sold and due for completion in the next 18 months—will up the luxury factor.

Safehaven Marine T-2000

“It’s going to a client in the Middle East who plans to use it for just himself and his wife,” says Kowalski. The client has specified a full-width owner’s suite with a central, king-size bed and oversized his-and-hers bathrooms and closets in each hull. “He also wants to go fast— very fast,” Kowalski continues. “So we’ll install twin 2,000 hp MAN V12s, again with surface drives, and a central hydrofoil to reduce drag. The plan is for it to hit a top speed in excess of 69 mph.”

The new T-2000 is also designed to go the distance. With the 2,900-gallon tanks, it has a range of more than 1,000 nautical miles at 34.5 mph, and 1,700 nautical miles at 18 mph. Throttle back to 12 mph and range increases to 3,000-plus nautical miles.

Much of this is down to the yacht’s symmetrical, semi-wave-piercing hulls, made of a carbon-fiber-composite construction, with inverted lower bow sections and a double-chine arrangement that projects spray clear of the boat. The hydrofoil in mid position also means that, at speed in calmish seas, the T-2000 rides with half its hull length out of the water.

Safehaven Marine T-2000 Power Cat

To eliminate waves slamming into the bridge deck windshield, Kowalski moved the pilothouse farther back. It also makes for a sleeker profile, giving the T-2000 the look of a single-hull sportsyacht.

The entire helm area gets flooded with light courtesy of the four-panel, angled windshield and quartet of fixed skylights above. To see the boat’s hydrofoil in action, the bridge has a glass panel in the floor that’s also designed for viewing marine life below at night. Most of the windows have half-inch-thick toughened panels to shrug off cascading water. 

Safehaven T-2000

In finer weather than typically found on coastal Ireland, the T-2000 has a small flybridge with a helm station and sun-lounge area up top, plus a covered stern cockpit with sofas and table for alfresco dining.

This storm-tested, metallic-red demonstrator is available for around $3.35 million.

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- with up to 30 sheets per plan!  Lists of materials - Technical information - Numerous construction drawings are all included.

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are designed for  family use and the accommodation was laid out with that in mind. The accommodation layouts of both these boats are similar in all respects ... the only difference is that the Cat 1500 offers more spacious arrangement while the Cat 1300 will be a little less expensive to build and equip.

 

 

 

 

 

 

 

 

 

 

 

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HOME / INDEX PAGE      SAILBOAT DESIGNS       POWERBOAT DESIGNS  

The boat is a plywood/glass/epoxy composite construction. Any handy amateur can build this boat without difficulties and surprises.

Quoted in the Study plans...

8.76/8.60m
5.60m
0.4/0.7m
1400 kg
2800 kg


27 m2
10 m2
26 m2

1:2
1:11
0.569
5600 kgm
21.5 kn
2x 6 HP

All plans and royalties for this design must be bought prior or with the purchase to the kit.

Please for further information regarding the kit, design and price.

Click the Link below to visit the designers website.

l l l l
Classic Windscreens

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Simpson Cats

6.5m woodwind catamaran, 7.3m breton strip plank bridgedeck catamaran, 8.2 m backslash catamaran, 8.3m catamaran, 9m groundeffect catamaran plans, 9m sine wave catamaran, 9.1 m woodwind catamaran, 10.2m catamaran.

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Catamaran 15m

catamaran 15

Survey Boat 12m

Warrigal

Type Workboat
Material Aluminium

PRINCIPAL PARTICULARS

Length Overall 15.24m
Length Waterline 15.00m
Load Line Length 15.23m
Moulded Beam 5.58m
Maximum Draught 0.64m
Fuel Oil 4.00 m3
Fresh Water 0.5 m3
Black Water 0.5 m3
Deck Cargo 14 tonnes (tbc)
Crew 2 persons Additional seating for 10PAX
Main Engines 2 x Caterpillar C 12 Other engines available
Propulsion 2 x 5 Blade FPP (waterjets available)

PERFORMANCE

Max. Speed 30.0 kts
Service Speed 22.0 kts
Class Notation N/A
Flag UK Flag Workboat code cat 3/2 (TBC)

A relatively lightweight workboat capable of carrying good cargo loads and getting you to where you need to go quickly if required. Originally designed by Roger Hill in New Zealand who has a reputation for making extremely effective catamarans. This vessel can come fitted with waterjets or standard propellers. Please contact the team for more information.

This 15m design is multi purpose work boat, suitable as a passenger vessel, a marine engineering platform, survey work, a crew boat, offshore support vessel, ect.

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Aquila’s 47 Molokai Is Bigger and Better

  • By Victor Tan
  • December 12, 2023

Aquila 47 Molokai

Versatility is at the heart of the 47 Molokai, which will be the second and larger offering in the Aquila Power Catamarans Offshore range. The vessel measures 49 feet, 4 inches length overall with a 14-foot-7-inch beam. The center-console design builds on the offshore-fishing foundations laid by the 28 Molokai while enhancing entertainment abilities and granting weekending opportunities for a couple.

For anglers, the 47 Molokai has 16 rod holders mounted on the gunwales, another 10 at the bow, six at the transom, eight on the hardtop and four welded into the grab rails just abaft the second-row helm seating. Aquila conceals a tackle stowage box, and a bait- and tackle-rigging station in the backrests of the three-person aft-facing mezzanine seating. Anglers also have tackle-box stowage beneath the second-row helm seating and to port. There are flush-mounted stowage lockers to port and starboard.

plan catamaran offshore

Aft, there are two 42.5-gallon transom livewells by Hooker Electric. Here, there is also stowage with a lid on the outboard side of each livewell, and owners heading out for big game can opt to convert these compartments into tuna tubes. The 47 Molokai  has two 90-gallon in-deck fish boxes, each with dedicated macerator pump-outs.

plan catamaran offshore

Whereas the 28 Molokai had seating for eight, including its two helm seats, the 47 Molokai has seating for 17 throughout the yacht: 14 forward-facing and three aft-facing positions. There are two foldaway stern bench seats that can seat two people each, in addition to the two rows of seven total helm seats and three foredeck lounge seats. Forward of this seating, there is a sun pad.

Abaft the cockpit’s aft-facing seating, there is a table, but it’s removed if owners choose an outdoor cooking setup instead of the seats. In either configuration, owners will have a place to stow drinks and snacks here, with insulated coolers beneath the seating.

Aquila 47 Molokai bow

The 47 Molokai has a double-stepped hull design that Aquila says provides better handling and stability, and reduces drag. The hull, deck and cockpit sole are infused with vinylester resin, and there’s an infused-fiberglass structural grid. Primary forward and aft bulkheads are made of carbon fiber, while the secondary bulkheads are vinylester-resin-infused. The 47 Molokai’s hardtop is made of carbon fiber.  

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plan catamaran offshore

Page 1 of 2 1


But unfortunately is all in slovenian language. But if enyone is intrested I can show it here to.

So the plan is for free and it is in PDF format. You can download it on:


I wish you a nice build.

With regards
Gasper Stefancic

P.S. Plan is for free, all rights are reserved. Just for personal use.
.

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plan catamaran offshore

Panathenaic Stadium (Panathinaiko Stadio)

Leoforos Vasileos Konstantinou, Athens, GRC

Originally built in the fourth century BC for the Panathenaic Games, Athens’ gleaming all-marble Panathenaic Stadium (Panathinaiko Stadio) was reconstructed for the first modern Olympic Games in 1896. Returning to its roots for the 2004 Olympics, the stadium was the site of the archery competition and the marathon finish line.

Entrance to the Panathenaic Stadium includes an audio guide and access to a small museum exhibiting Olympic Games posters. Don’t miss the chance to snap your photo on the winners’ pedestal. Hop-on hop-off buses and many Central Athens sightseeing tours stop at the stadium and other top sights, such as the Acropolis, the Roman Agora, and Syntagma Square.

The Panathenaic Stadium is occasionally used as a concert venue—check to see what’s on during your visit.

Smoking, drinking anything other than water, and eating are prohibited inside the stadium.

Facilities include toilets (for a small fee) and a café (near the entrance).

The Panathenaic Stadium is located just southeast of the National Gardens of Athens (Ethnikos Kipos). Take the metro to the Syntagma, Acropoli, or Evangelismos station, then walk the short distance to the stadium.

The stadium is open to visitors year-round. The best time to go is in the morning or early evening, when temperatures are lower. Visitors can jog along the track in the early morning—just fill out the waiver available on the stadium’s website.

Stand 21 offers some of the finest views of Athens’ ancient riches. Climb to the highest tier, and gaze across at noble sights such as the Acropolis, Philopappos Hill (Filopappou), the Temple of Olympian Zeus (Naós tou Olympíou Diós), and Mt. Lycabettus (Lykavittos), the city’s tallest peak.

Things To Do Available ( 425 )

Private tour to marathon battlefield and long run.

Duration: 4 to 5 hours

Private Layover Athens Sightseeing Tour from the Airport or Port

Duration: 5 hours

Private Half-Day Sightseeing in Athens

Duration: 4 hours 30 minutes

Athens Private Half-Day Tour with Driver and Guide

Duration: 4 hours

Athens, Piraeus, Riviera: Hop-On Hop-Off City Sightseeing Tour

Duration: 80 to 110 minutes

Athens Full Day Private Tour 8seat

Duration: 8 hours

Athens Full Day Private Tour 4seat

Athens half day private tour 4seat, cape sounio, temple of poseidon, and lake vouliagmeni day trip, athens express private driving tour.

Duration: 2 hours

Travel Like an Expert with AAA and Trip Canvas

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Wind farm operator Ørsted plans to open a new engineering hub in Rhode Island

The danish offshore wind energy firm is also moving to a larger office space in providence.

A Block Island Wind Farm turbine operates off the coast of Rhode Island during a tour of the South Fork Wind farm organized by Orsted.

PROVIDENCE — Ørsted, the Danish firm that operates America’s first offshore wind farm in the waters off Rhode Island’s coast, plans to establish a new engineering, procurement, and construction (EPC) hub in Providence and will shift to a larger location in the city, a move the company said on Thursday will lead to a doubling of its employees in the coming years.

The company operates the Block Island Wind Farm , which was the first such energy project in the country when it went operational nearly eight years ago. Ørsted is also building another project known as Revolution Wind , which aims to power Rhode Island and its neighbor Connecticut.

The company said it will relocate to a 17,470-square-foot space in downtown Providence as it expands its operations in the state and recruits new workers to its EPC hub.

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“As the birthplace for America’s offshore wind industry, Rhode Island has always been a focal point for our company’s U.S. operations,” David Hardy, group executive vice president and CEO of Ørsted North America, said in a news release. “We look forward to opening the doors on our new, expanded space in downtown Providence as we continue building Revolution Wind and solidify our hub in the Northeast, which includes port facilities, workforce training, and much more.”

The company currently has 100 employees, it said, including those who are based at its operations and maintenance hub in Quonset Business Park in North Kingstown.

Providence’s Mayor Brett P. Smiley noted that the announcement would enhance the city’s reputation as an alternative energy hub.

“Ørsted’s new Engineering, Procurement and Construction Hub is an exciting step in cementing Providence as a center for the clean energy sector,” Smiley said in the release.

The hub, which the company said would officially go live in the winter, was a vote of confidence for Rhode Island’s ambition as a destination for clean energy, said Laurie White, president of the Greater Providence Chamber of Commerce.

“By choosing Providence for their U.S. Engineering, Procurement and Construction Hub, Ørsted is once again ensuring our state remains at the center of America’s clean energy revolution — and the thousands of jobs that come with it,” White said in the release.

Omar Mohammed can be reached at [email protected] . Follow him on Twitter (X) @shurufu .

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  4. 29m Catamaran Utility Vessel

  5. Un catamaran à énergie solaire à Marseille

  6. Horizon PC68 Power Catamaran Yacht (2022) Exterior Interior SlideShow

COMMENTS

  1. Catamaran and Trimaran Boat Plans

    Genuine Hartley Boatplans and Samson Boatplans are only supplied by hartley-boats.com, New Zealand. Catamaran & Trimaran Boat Plans from Hartley Boats make it a reality to build your own multihull at home. Build with Plywood or Fibre Glass. 12-35 ft plans.

  2. PDF 52ft Aluminium Catamaran

    52ft Aluminium Catamaran. Offshore Performance I Aluminium Construction. van ZHa1K DESIGN BROCHURE. Offshore Performance I Aluminium Construction " DESIGNED FOR WORLDWIDE CRUISING" "SAFE, COMFORTABLE AND FAST" KEY FEATURES - ALL ALUMINIUM CONSTRUCTION - RUGGED AND L aw MAINTENANCE STRUCTURALLY COMPLIANT WITH CE/ISO 1 22 1 5 STABILITY COMPLIANT ...

  3. Kurt Hughes Multihull Design

    Order the Latest Design Portfolio today to see over 85 multihull plans in stock.Besides illustrating my stock designs, for which I sell study plans and full construction plans, it also contains my design philosophy of multihulls; an article on the rapid Cylinder Mold(pdf) or Cylinder-molding (in html) multihull construction; examples of drawing sets; photographs; fact sheets with dimensions ...

  4. Catamaran Stock Plans

    Catamaran Stock Plans. ... Plans are leased to build ONE boat, NO time limit. Tri-Star designs are proven designs, sailing the seven seas since 1964. Free consultation is provided to the original non-professional builder till he or she is sailing the seven seas. All boats may be built with flared hulls, with the exception of the TRI 25, TRI ...

  5. Catamaran construction principles: design, know-how

    The stiffness of an Outremer catamaran is incomparable. The main bulkheads are of large dimensions, and so are able to take much greater loads than a cruising multihull might encounter. Inserts in carbon fiber, closed-cell foam, isophthalic resins and high-resistance polyester: everything is designed to guarantee your safety for offshore sailing.

  6. ECO 55 Power Cat Plans

    ECO 55 Power Cat Plans. The ECO 55 power catamaran is an affordable DIY power catamaran. As the owner proved the boat is a capable coastal cruiser. The inside layout is the same as for the ECO55 sail version but the underwater shape is changed. The cockpit is wider and has a size of 1,45m x 2 m. With the bigger size normal deck chairs can be used.

  7. Self Build Boats

    Everything you need to build your own sea-going catamaran: 3 steps. Familiarise yourself with our range of designs and their unique qualities. For more detailed information read the Wharram Design Book which reviews each self-build boat model and offers a detailed introduction and understanding of the world of self-build catamarans.; Order one or more sets of our Study Plans and immerse ...

  8. Trimaran Plans

    The DESIGNER'S book TRIMARAN and CATAMARAN CONSTRUCTION is part of the plans (over 21') and covers all phases of construction. Plans are leased to build ONE boat, NO time limit. Tri-Star designs are proven designs, sailing the seven seas since 1964. Free consultation is provided to the original non-professional builder till he or she is sailing ...

  9. Aluminum Catamarans

    45 FT Catamaran Workboat (1740) 44' 7" / 13.59 m. 17' 7" / 5.36 m. 16,100 lbs / 7,303 kg. 15,750*. SPECMAR Catamaran Hulls are either symmetrical or asymmetrical in design. A symmetrical hull consists of two basic V-bottom hull structures. Asymmetrical hulls are basically a monohaul craft split down the middle and spread apart.

  10. 35 FT Catamaran Workboat (616)

    35 FT Catamaran Workboat (616) This design (plan) is a 35 FT aluminum catamaran. Power is two (2) Volvo D4-225 DP I/O at 189 HP each. Gross weight and speed dependent on final arrangement. The above price is for the construction plans and a onetime use of the CAD cutting files. Hull 616.

  11. Bruce Roberts, CATAMARAN boat plans, CATAMARAN boat building

    Fast cruising ALUMINUM CATAMARAN . BOAT PLANS & FULL SIZE PATTERNS - Package Includes latest sail boat plans, SAILBOAT building plan updates & revisions, PLUS direct contact with the designer. This CATAMARAN was designed for personal use or charter work and the accommodation was laid out with that in mind.

  12. Sailing trimaran and catamaran design

    Owen Clarke Design began as sailing multihull designers, sailors and project managers. Our first multihull was Fiery Cross a racing trimaran design by Merfyn Owen in 1987. Their first custom cruising yacht was Syn Y Mor, a 30' fast cruising catamaran and the first collaboration with Allen Clarke. In recent years they worked with clients on a Multi50 trimaran project and most recently 20m racer ...

  13. Ocean catamaran, Outremer 55

    Outremer 55 - Our 55ft ocean catamaran is an overachiever: safety, comfort, performance. An ocean catamaran designed for offshore family cruising, or solo sailing. Outremer 55 - Our 55ft ocean catamaran is an overachiever: safety, comfort, performance. ... Sail plan - Mainsail - Genoa - Selftacking jib - Gennaker - Spinnaker 104 m2 68 m2 48 m2 ...

  14. Boat Plans, Bruce Roberts Boat Plans, Boat Kits, Founded 1966, Official

    Motor Sailing CATAMARAN Boat plans CATAMARAN PS 675 ALU. & FG Power / Sailer CATAMARAN Boat plans 78ft / 24m - 70ft / 21m - 65ft / 20 m FIBERGLASS FAST POWER CATAMARANS. CAT 785 CATAMARAN Cutting files etc. Power or Sailing CATAMARAN Boat CAT plans CAT 1900 & CAT 2400 Cutting files etc. ...

  15. Renaissance Prowler

    Renaissance Prowler is a family company, and that family includes everybody who owns a Prowler. Our hull designs play a part too. We've been pushing the envelope with high-performance offshore catamarans since 1997 — long before their recent surge in popularity with hardcore offshore anglers. Those decades of experience show up in our best ...

  16. Catamaran cruising: everything you really need to know

    This is commissioning, and it is the last stage of the build. Test the boat as rigorously as you can before you leave the proximity of the yard. Complete a couple of substantial offshore passages ...

  17. Safehaven's T-2000 Power Catamaran Can Run in 20-Foot Seas

    This Speedy 70-Foot Power Catamaran Is Designed to Cut Through Rough Waters The 70-foot T-2000 Voyager can hit 60 mph in flat conditions, and then take waves up to 30 feet. Published on August 28 ...

  18. Bruce Roberts, steel boat CATAMARAN plans, boat building, boatbuilding

    CATAMARAN BOAT PLANS BRUCE ROBERTS OFFICIAL WEB SITE offers custom boat plans and boat kits for steel boats or aluminum boat designs, cut to size boat kits, part built boats or complete boats. Bruce Roberts Yacht Designs offer boat building project management arrangements for boats built overseas at affordable prices. Sailboat and Powerboat building plans and kits available for building steel ...

  19. Wooden Boat Kits, Boat Building & Plywood Suppliers

    KD 860 - offshore catamaran. This is Bernd Kohler,of K-Design's smallest offshore cruiser. A sea worthy fast cruiser catamaran for a family of four. ... The study plans include diagrams for speed prediction and dynamic stability, so you can see for your self. The boat is a plywood/glass/epoxy composite construction. Any handy amateur can build ...

  20. Mystic Building New 40-foot Catamaran Series

    Mystic Powerboats in DeLand, Fla., has started tooling its first 40-foot catamaran, a project that is more than three years in the making. According to company owner and founder John Cosker, the catamaran will be available in an open-cockpit version called the C4000S, a high-performance canopied pleasure version called the C4000RS and a pure offshore racing version—called the C4000R—aimed ...

  21. Simpson Design Catamaran Plans

    This is an enormously popular baot that is easily built by the amateur. She offers good offshore capability, well above average accomodation in a boat this size and a high payload capacity. As a style of catamaran the 10.2 has become an evergreen. Several options come with the design.

  22. 15m Catamaran

    Catamaran 15m. Max. Speed. A relatively lightweight workboat capable of carrying good cargo loads and getting you to where you need to go quickly if required. Originally designed by Roger Hill in New Zealand who has a reputation for making extremely effective catamarans. This vessel can come fitted with waterjets or standard propellers.

  23. Aquila's 47 Molokai Is Bigger and Better

    Courtesy Aquila Power Catamarans. Versatility is at the heart of the 47 Molokai, which will be the second and larger offering in the Aquila Power Catamarans Offshore range. The vessel measures 49 feet, 4 inches length overall with a 14-foot-7-inch beam. The center-console design builds on the offshore-fishing foundations laid by the 28 Molokai ...

  24. Offshore catamaran Mystic C5000_V1

    BJ26 or upgraded Catamaran 24: SARCFAN: Dock Talk: 4: Feb 28, 2011 11:35 AM: Sold: Victor model Products Wildcat Catamaran kit: Robert Pulse: RC Boats (FS/W) 0: Dec 21, 2010 09:16 AM: New Product: Billing boats new offshore tug "Fairmount Alpine" Sharky1dk: Scale Boats: 16: Dec 20, 2010 04:23 PM: Discussion: Which electric Catamaran is the best ...

  25. Equinor scraps Spain, Portugal offshore wind plans as costs rise

    Equinor scraps Spain, Portugal offshore wind plans as costs rise. By Nora Buli. August 28, 2024 3:17 PM UTC Updated ago Equinor's logo is seen at the company's headquarters in Stavanger, Norway ...

  26. Exclusive: Equinor halts Vietnam offshore wind plans, to close Hanoi

    Vietnam has no current offshore wind projects but wants to install wind farms for 6 gigawatt (GW) by 2030, equal to 4% of its planned capacity, as part of plans to reduce coal and reach net zero ...

  27. Panathenaic Stadium (Panathinaiko Stadio)

    Originally built in the fourth century BC for the Panathenaic Games, Athens' gleaming all-marble Panathenaic Stadium (Panathinaiko Stadio) was reconstructed for the first modern Olympic Games in 1896.

  28. Noble Corporation and Diamond Offshore Provide Update on Expected

    Noble Corporation plc ("Noble") (CSE: NOBLE, NYSE: NE) and Diamond Offshore Drilling, Inc. ("Diamond Offshore") (NYSE: DO) announced today the receipt of clearance from the Australia Competition Consumer Commission, in relation to the pending transaction between Noble and Diamond Offshore, which is the final required regulatory approval for the transaction. The parties expect to close the ...

  29. Shanghai Plans Offshore Solar Projects Next to Wind Farms at Sea

    Shanghai is looking to the sea for its clean energy future, mapping out a plan to build offshore solar farms near massive wind turbines, as the country's financial hub tries to squeeze ever more ...

  30. Wind farm operator Ørsted plans to open a new engineering hub in Rhode

    PROVIDENCE — Ørsted, the Danish firm that operates America's first offshore wind farm in the waters off Rhode Island's coast, plans to establish a new engineering, procurement, and ...