de villiers yacht design

GOOD HOPE 56

Jacobs Bros is the preferred builder of the Good Hope 56’. Designed by Ed Joy , it is a rugged, aluminium yacht for extensive cruising. Following the adventures of Seal, it has inspired interest in this design from aspiring circumnavigators. This yacht is durable and low maintenance, and is capable of exploring rivers and tidal basins that are inaccessible to fixed keel sailboats. The design is suited for rugged Arctic conditions, with her proven lifting keel and rudder, and can be modified for less extensive cruising in high latitudes.

• LOA | 17.12m (56ft 2in)
• DWL | 12.9m (47ft 4in)
• Beam | 4.83m (15ft 10in)
• Draft | 0.97m (3ft) keel up
• Draft | 2.67m (8ft 9in) keel down
• Displacement | 24,950 kg

GOOD HOPE 65

Good Hope 65’ is a scaled up version of the 56’, with thicker hull plating, cleaner lines, more cabins, larger communal spaces and a pilot house galley rarely seen on monohulls.

• LOA | 19.89m (65ft 3in)
• LWL | 16.69m (54ft 9in)
• Beam | 5.33m (17ft 6in)
• Draft | 1.04m (3ft 5in) keel up
• Draft | 2.9m (9ft 6in) keel down
• Displacement | 34,212 kg

Jacobs Bros is one of the preferred builders for this design by De Villiers . It is a durable, rugged expedition catamaran with features designed to blend seaworthiness, safety & performance in a slender hull configuration. This DS version is optimised for Diving and maxes out the Solar capacity. The light yet incredibly strong hull material perfectly optimises performance with load-carrying ability. Features include 6 watertight bulkheads, exceptional underwing clearance and low heeling moment.

• LOA | 16.00m (52ft 6in)
• LWL | 15.98m (52ft 5in)
• Beam | 7.70m (25ft 7in)
• Draft hull | 0.66m (2ft 2in) (Daggerboards)
• Draft fixed keels | 1.20m (3ft 11in)
• Displacement | 14,700 kg

Designed by De Villiers for influential catamaran voyagers, Sailing Nahoa Designed for single-handed sailing as well as live aboard sailors to explore the corners of the world. She is designed to handle offshore conditions with safety, speed, comfort & superior performance. Features include: high strength to weight ratio, ensuring light yet exceptionally strong build; re-inforced hulls for high latitude sailing; enhanced hull damage protection with 6 watertight bulkheads; skeg protected rudders & props; low maintenance & robust mini keels allow to beach anywhere without damage.

• LOA | 17m (55ft 9in)
• LWL | 16.93m (55ft 6.5in)
• Beam | 8.05m (26ft 5in)
• Draft hull |0.658m (2ft 1.9in)
• Draft fixed keels | 1.25m (4ft 1.2in)
• Displacement | 16,160 kg

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More From Forbes

Milano design week 2024 celebrates yachts, art, and nature in style.

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Azimut Seadeck 6 was "moored by the moon" in the swimming pool of the Bagni Misteriosi during Milano ... [+] Design Week 2024

Milan may have been overflowing with crisp design, stylish designers, and creative installations during Milano Design Week recently. But I’m pretty sure no other installation got more attention, or was harder to pull off than what Azimut Yachts achieved when they moored a 57-foot-long Azimut Seadeck 6 in the swimming pool of the Bagni Misteriosi .

The immersive installation was curated by AMDL CIRCLE and Michele De Lucchi that began as journey within the Bagni Misteriosi del Teatro Franco Parenti and culminated on the Azimut yacht moored in the shadow of a large moon. The goal was to invite visitors to rediscover the gentle relationship between man and nature as well as to testify to the fact that that a more sustainable future is now at Azimut.

Part of the Azimut installation at 2024 Milan Design Week

“The purpose of this installation was to involve visitors in the theater of life and arouse their imagination,” says Michele De Lucchi, Founder of AMDL CIRCLE. “It is only with our imagination that we can see a brighter future on the horizon, much more harmonious than today's present.”

Once through the historic entrance of the Palazzina dei Bagni Misteriosi, visitors were welcomed by a suspended atmosphere, in which the elements of the rooms dialogue with the installations to evoke the wonder of the natural world.

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Images, sounds and scents evoked a dreamlike sea that was discovered through the labyrinth of doors of the old changing rooms at the beginning. Large sculptures, shells made with the innovative materials introduced by Azimut – discarded and regenerated fishing nets, recycled plastic (PET) and carbon – stand out like theatrical wings in the second room while, continuing the game of theatrical make-believe, the visitor climbed aboard the Seadeck 6 in a space where furnishings and materials are used to recreate the internal environment of the vessel, designed by Matteo Thun & Antonio Rodriguez.

Azimut installation at Milano Design Week 2024

The route culminated outside, offering a view from a terrace suspended over the water of a landscape in which Seadeck 6 is moored, the embodiment of the route traced by Azimut to reduce CO2 emissions and energy consumption.

In fact, according to Azimut, the yacht offers a reduction in emissions of up to 40% in an average year of use. Mirrored shingles in shiny galvanized steel form a large disk inspired by the moon, whose play of reflections emphasizes the dynamic effect of the pattern of light, evoking the lunar glow.

“The difference can and must be made here and now,” explained Giovanna Vitelli , Chair of Azimut|Benetti Group. “Not with distant promises of a world to come or with a superficial approach to the topic of environmental sustainability. The boat in the swimming pool of the Bagni Misteriosi is the emblem of our commitment: concrete, measurable and always present."

And maybe best of all. It was cool. Because let’s face it, change for the better is much easier to pull off when the alternative is cooler than what’s gone before.

Stay tuned.

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A long time ago ... back in 2007 we were approached by an experienced US sailing couple to design an unusual boat ... a catamaran intended for chartering built of aluminium with a ketch rig. No way! Several ‘experts’ in the field had told them it was impossible to build a cruising catamaran with halfway decent performance from this ‘heavy’ material. And then why would you top it all off with a slow, old-fashioned ketch rig! We at de Villiers Yacht Design had wide experience working with aluminium and alternative rigs so after about two seconds consideration decided to give it a go. Not without a modicum of angst as we had never before designed a sailing catamaran. The rest, as they say, is history.  

Within six months of the initial discussions construction was underway on the 62’ ‘ketchamaran’ in faraway New Zealand. The owners took delivery of a bare hull and proceeded to fit the boat out by themselves over the next year. In January 2009, after a trial sail of about 20 miles the vessel left NZ heading south east for the Southern Ocean and eventually taking the owners all the way back home to the Chesapeake. Since then this unique 62’ catamaran has crossed the Pacific a couple more times, logging over 50,000nm with a family of four and up to six charter guests aboard at any one time. Although she was conservatively sailed (with safety and seamanship a priority) during these passages her average speed was 10kts. Dare I suggest that the experts might be wrong about the ability of an aluminium catamaran? Actually I believe that this boat has gone some way beyond proving doubters wrong and is in fact an ideal cruising boat, capable of much higher average speeds than some of the flashy but overloaded ‘floating condo’s’ that don’t contribute much to the notion of a swift multihull. 

Since our 62’ cat was launched we have received many enquiries for cruising cats in aluminium but smaller and more manageable in terms of initial cost to build, maintenance, berthing and sail handling. The aim of this article is thus to introduce our latest design to the market – a 52.5’ blue water catamaran with features and overall philosophy derived directly from her proven and successful bigger sister. 

With this background of hard data around which to formulate the concept and features of the new design, what you see in the pictures is surely going to be a unique and spectacular boat ... which we will call the DVDesign 525 PureCat (PurrCat!). The core theme for this boat is thus to be a safe, capable and speedy offshore cruising catamaran which can be easily handled by a couple. A pure and simple blue-water passagemaker.  Specifically, what follows is a summary of the features and proven concepts and strengths inherent to this new design.

1 Ketch Rig – For a given sail area the aspect ratio can be reduced or to put it another way the Centre of Effort of the sails is closer to the waterline, resulting in a more stable boat. This single fact alone makes the extra hassle of a mizzen mast worthwhile to our way of thinking. It is widely accepted that a split rig (ketch, schooner or to a lesser extent a yawl rig) reduces the individual sail areas thereby making them more manageable. Having multiple headsail options further increases this ease of handling. When it starts to blow just drop the mainsail and the result is a snug rig, able to be carried in gale force conditions. Due to their high righting moment, catamarans in particular, generate high loads in the rig so the mast, stays and shrouds, and other rig fittings need to be suitably sized which adds to the overall cost of the boat. A lower aspect rig can help to reduce these costs proportionally. Having said that the ketch rig will not suit everyone’s boat handling methods or budget so we will make a sloop rig version available. 

2. Bridgedeck (Underwing) Clearance – For peace and quiet on long voyages on a catamaran this dimension (from the static waterline to underside of the bridgedeck structure) needs to be as large as is physically possible, full stop. Furthermore the underwing surface must be as streamlined as possible without projections and fairings intended to increase the internal volume as evidenced on some the aforementioned floating condominium catamarans. Trust me when I say that reduction of bridgedeck slamming in a seaway on long offshore passages is a must-have feature. On the 525 Purecat we are aiming for 850mm at full cruising load. Other cat designs may come close but be careful to ensure that this is not the dimension off the plans at lightship. 

3. Aluminium Alloy Hull, Bridgedeck and Deckhouse Construction – Marine-grade aluminium is one tough material and is currently the material of choice for many offshore passagemaking vessels and superyachts. It combines lightness with strength in an unbeatable combination. Left unpainted it is relatively maintenance-free and the somewhat utilitarian look might well contribute to keeping the boat unburgled in dodgy areas! Aluminium is a strong and ductile hull material, abrasion and puncture resistant – just try hitting a reef on your glass boat.

4. Six Watertight Bulkheads for unparalleled safety in a damaged situation. Other designers have claimed unsinkability of their vessels and been proven wrong so we will not make the same contention. But having six watertight bulkheads significantly improves one’s chances in the unlikely event that one or more compartments are breached.  

5. No osmosis or core delamination or leaks at deck fittings. Need we say more? 

6. Straight and simple driveshafts ... no saildrives need apply here! The engines are separated from the accommodation space in dedicated enginerooms at the aft end of each hull. Not sure if I am alone but I find it impossible to sleep in a bunk which is directly above the engine separated by some insulation and piece of 12mm plywood. Our aluminium catamarans are proper small ships with separate, watertight enginerooms. The props are protected behind 20mm solid aluminium plate skegs for peace of mind when bumping into logs or reefs or submerged containers or ... something else!

7. Watertight Forepeaks – The forward part of each hull of this catamaran is separated from the accommodation by ... another watertight bulkhead! But wait there’s more ... at the front of each of the forepeaks is another watertight bulkhead or properly known as a collision bulkhead. Safety is paramount on this vessel. 

8. Solid 31/2” Aluminium Alloy Rudderstocks – The rudders are balanced spades, with no bottom bearing vulnerable to damage. The rudder stocks will take all of the load and the stock diameter exceeds any regulation from any country.  

9. Forward Cockpit – We did not invent this feature ... we merely perfected it! I know it seems wrong but it really does work. It’s the safest place to be when working the sails. All headsail sheets, furling lines, mainmast halyards etc. are led to the area around the base of the mainmast and at shelf height it’s very comfortable working the winches and jammers. Only the mizzen sheets and halyards are not led to the forward cockpit but hey, it’s an easy stroll out to the aft cockpit and working behind the deckhouse is even more protected. In over 50,000nm our 62’ cat never took green water into the forward cockpit and even if it were to happen there’s drains through the cockpit sole which exceed the ISO quick draining recess regulation size. A lot of people say that the forward facing cockpit will be really cold but again it’s never been an issue on the 62’ cat and they have several Southern Ocean passages under the belt. Actually when the wind is anywhere aft of the beam then it’s warmer and less windy than the aft cockpit. At anchor in the tropics the forward door(s) are open and expensive air conditioning is unnecessary!

10. Performance – This aspect is intrinsic to the philosophy behind the 525 PureCat. Overloading is a significant problem evidenced on many cruising catamarans today, making their performance sometimes less than stellar and other times close to dangerous. We therefore emphasize performance over voluminous and overweight interior accommodations. The PureCat exhibits significantly improved performance numbers rivalling the best in class. 250nm days will be achievable resulting in more time for cruising amongst the islands when you get there. Within the framework of this design will be optional performance enhancing features like daggerboards versus fixed fin keels as well as carbon masts etc.  

11. Interior Accommodation Layout – Cats have large volume interiors but as alluded to in the performance section above it is critical not to fill them up with stuff as this will overload them and performance will be negatively affected. Who wants a cat that barely sails faster than a similar sized monohull? If you are able to sail away from the oncoming path of a storm then does this not constitute good seamanship? Consequently our design is conservative in terms of accommodations catering for four to an occasional six persons.  The layout shown is just one of several possible within the framework of this design.   

12. Lower Cost to build than an equivalent custom composite boat. This is another contentious statement and so long as we are not comparing costs to pop-out production boats then we stand by this opinion.

So there it is ... we are extremely excited about the possibilities for the 525 PureCat design. She is going to cut a clean wake through some fondly held misconceptions. If you are looking for your ‘forever’ cruising catamaran then this has to be at the top of your list.

Courtesy Boating New Zealand

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