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Best bilge keel yachts and twin keel yachts for drying out ashore

Peter Poland

  • Peter Poland
  • April 12, 2023

Peter Poland reveals how bilge keel yachts and twin-keel designs won his respect – those that could sail well and stand on their own two feet…

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Back in the late 1970s, I found myself on the horns of a dilemma. For the last decade or so I’d dismissed bilge keels and twin keels as ugly and performance sapping appendages. To my eyes, they invariably had the look of casually designed afterthoughts that had sprouted beneath nice hulls just to enable the boat to stand on its own two feet.

The boats that my company built, on the other hand, were aimed at serious sailors and I rashly assumed that anything other than a state-of-the-art fin keel or hydrodynamically efficient lifting keel would never be likely to satisfy this market.

Then my own personal boating needs underwent a change, so I had to take a flyer. Breaking my own rules and ignoring my preconceptions, I went out and spent my own hard-earned loot on a second-hand twin keeled Westerly Centaur.

Why? Because my factory and home were on the East Coast but a lot of high-profile sailing activity took place down south. So I needed a habitable floating base that could be parked on a cheap mud mooring and be able to follow the regatta circuits on which the boats I built (Sonatas, Impalas, Deltas, Medinas etc) competed.

This boat had to provide a general all-purpose home from home. And a bit of undemanding weekend pottering would be an added bonus. With my limited budget, there was only one obvious solution at the time – a Centaur.

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Sprawled, glass in hand, in the cockpit of my friend James Stock’s beautiful Stephen Jones-designed Mystery 35, I pondered on…

I soon discovered that the Centaur’s windward performance – while adequate – was hardly stimulating, especially when compared to the close winded precision of a Sonata or Impala to which I’d become accustomed.

As a result, the Centaur’s Volvo Penta motor got a lot of use when the wind went light or ahead, whereas on a reach or a run she performed satisfactorily and got us from A to B with a minimum of fuss and at a respectable speed. And she also offered comfort down below – despite the Centaur being only 26ft long I could stand up.

Design challenge

All of which got me thinking that maybe there could be more to these twin keel things than immediately met the eye. And as the sales of our fin and lifting keel speedsters began to slow over the ensuing years, I could not help noticing that the sales of our bilge or twin keeled competitors seemed to be on an ever-rising upwards trend in the 1970s and 80s.

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Around 2,500 twin-keel Westerly Centaurs were built, which means there are plenty on the second hand market. Photo: Peter Poland

If we were to continue as a viable boatbuilding business, maybe we’d have to cast aside our prejudices and take a long look at these two-legged options.

So I took courage in both hands and asked our designer whether he might be willing to consider agreeing to design us some twin keels. I hastily added that of course – being the genius that he undoubtedly was – he was bound to come up with something far better than anything that had ever graced a cruising yacht’s bilge before.

Then I stood back and awaited the inevitable broadside of shock, horror and indignation. “Well,” said David Thomas (who had never designed a slow yacht in his life), “I might. I just might.

“But first I’ll need to think about it. In case you’d not noticed, twin keels have far more variables than a fin keel. The positioning of the roots relative to the centre line, the splay, the angle of attack are all variable and important. I’ll have to think twice as hard and for twice as long.”

I took this as a ‘yes’ so left it at that. And patiently awaited developments.

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Gib’Sea 76 (26ft 11in) with ‘swept’ twin keels that draw 3ft 3in. Photo: Peter Poland

History of bilge keel yachts

Of course, bilge and twin keels were not a new phenomenon. They had been around for many years. When researching an earlier article on the Westerly story, I’d been fascinated by the development work done on his twin keel and twin rudder yachts by Lord Riverdale. As had my sales manager, Andy Cunningham, who wrote an excellent treatise on twin keels.

Lord Riverdale’s first twin keel sailboat was the smaller self-designed 25ft Bluebird of Thorne , built in 1924. Later Riverdale built the bigger Bluebird of Thorne (50ft) in the early 60s that he designed in collaboration with Arthur Robb. He claimed that tank-tested models indicated a 15% improvement on his earlier twin keel designs.

Bluebird of Thorne ’s owner, Lord Riverdale, had designed and built a string of cruising yachts (all with twin keels) over a period of around 40 years prior to the culminating glory of his and Robb’s 50ft steel twin keeler.

Riverdale also liked to draw the distinction between what he called ‘bilge keelers’ (meaning boats with a ballasted or unballasted centre keel and two stabilising bilge keels) and ‘twin keelers’ (boats with twin ballasted keels).

To go further back to bilge keel basics, it was probably Maurice Griffiths who did most to put bilge keel benefits into practice and bring creek crawling and ‘upright drying out’ to numerous leisure sailors.

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Built from GRP, the Golden Hind 31 is a double chine, shoal draught cruiser. Photo: sailingscenes.com

Classics such as the 1957 Eventide 24 and 26, Waterwitch and 1968 Golden Hind 31 (to name but three of his many popular designs) all came with bilge keel options – featuring a substantial central ballast keel and two supporting bilge plates. The resulting shallow draught would never provide dynamic windward performance; but that was not Maurice Griffiths’s aim.

He set out to supply honest, seagoing small yachts that would be equally at home in the rough and tumble of a hostile North Sea as they were weaving between the withies and nosing their way into peaceful and shallow backwaters.

East Coast pottering is a specialised and delightful pastime that can only be enjoyed to the full in a shallow draught yacht that is capable of drying out – whether by mistake or on purpose.

Then along came Robert Tucker and his popular twin keel plywood pocket cruisers such as the Silhouette that took off in 1954. Around the same time, a French designer began to play with twin keels.

François Sergent designed the attractive 22ft Sargue with a beam of 7ft 5in; generous for that era and with reasonable accommodation. Several of this mahogany strip planked twin keeler (drawing 2ft 4in) were built, and they not only sat happily on the Breton mud – they sailed well.

The designer said: “In passage races in the St Malo-Granville area one won two firsts and a fourth in three starts against deep keel boats and centreboarders.” It’s a pity none of them made it over to our UK shores. With pleasing performance and Gallic grace, the Sargue class looked a cut above what was available over here at that time.

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Westerly Nomad’s longer coachroof offered improved accommodation to the Westerly 22. Photo: Carolyn Jenkins/Alamy

Westerly 22

Mass-produced and affordable bilge keel GRP yachts only really began to fill up our foreshores after Denys Rayner set up Westerly Marine in the early 1960s. Enthused by the tractable sailing he had enjoyed in his earlier bilge keeled designs such as the jaunty little Westcoaster, he decided that the time was right to invest in a new GRP cruiser.

And so the Westerly 22 was born in 1963. The twin keels drew just 2ft 3in and gave a ballast ratio of 33.3% while a long central ‘keel’ supported the rudder and gave a secure ‘three-point landing’.

The Westerly 22 sailed adequately, sat happily on a drying mooring, and the 22 Young Tiger was seaworthy enough to make a transatlantic crossing in 1966. The longer coachroof of the later Westerly Nomad (1967) improved accommodation.

Following on from the 22’s success and Westerly’s bursting order book, Rayner pushed ahead with 25ft and 30ft models that used the same keel recipe. The burgeoning market for family cruisers was growing fast after the post war dinghy boom.

In a remarkably short time, Westerly sold almost 1,000 of these Rayner-designed yachts and the bilge keel revolution was well and truly on its way.

But even their greatest fans will admit that the sailing performance of these early models was unspectacular. Their modest draught meant that lateral resistance was minimal, so leeway when sailing to windward was considerable compared to that of a yacht with the extra bite given by deeper keels.

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When buying a used twin keeler, like the Westerly Centaur or Mirage, get keel roots surveyed. Photo: Peter Poland

And the drag incurred by all that surface area on three shallow appendages cut speed through the water – especially in lighter airs. But the early Westerlys sold like hot cakes because they brought economical sailing, low cost drying moorings and carefree coastal cruising to thousands of sailors taking to the water ‘en famille’ for the first time.

As Westerly pushed remorselessly ahead, other players soon entered the twin keel market. Thames Marine set up on Canvey Island in Essex and, over many years, produced hundreds of Snapdragon cruisers. Like the early Westerlys, these boats were not – by any stretch of the imagination – racers.

While a few models offered a centreboard keel configuration, the majority were twin keelers. Accommodation was always spacious and later models had a pleasing look, thanks to their nicely proportioned coachroofs.

At the smaller end of the market, makes such as Leisures, Silhouettes, Hurleys, Tridents, Macwesters, Cobras and Alacrities – to name a few – offered twin keels as standard or as an option.

But nobody was yet putting that much thought into the designs of the keels themselves. Some builders even produced twin keels that were an integral part of the hull moulding, then filled the GRP keel cavity with iron punchings.

As a result, the keel had to be vertical (to release from the hull mould) – which is far from ideal from a performance perspective. Add a fibreglass moulding filled with iron, and it is a disaster waiting to happen if the boat dries out on rough or rocky ground.

Once the GRP keel base is worn down or punctured, saltwater can get in and rust the iron, whereupon the rest of the fibreglass keel ‘casing’ can get blown away from the rusting iron ballast inside.

new bilge keel yachts

Painting a Westerly Centuar while dried out. Photo: Gary Blake/Alamy

Westerly Centaur

The next real leap forward in twin keel design came courtesy of the originators of mass-produced GRP twin keel cruisers – our old friends Westerly again. As Denys Rayner’s health was fading, he enlisted the young David Sanders to take over the running of the company. Unlike Rayner, Sanders was no yacht designer. “Go to Laurent Giles,” advised Rayner.

He was aware of the bilge keel development work and tank testing that had been done by Jack Giles so reckoned design firm Laurent Giles was the most likely to take twin keel design to its next stage. It was wise advice.

When I asked Barry van Geffen (later the MD of the Laurent Giles design office) how the new generation twin keels as first used on the Centaur came into being, he said that Laurent Giles’s research and tank testing had been very revealing.

new bilge keel yachts

Westerly Centaur interior. Photo: sailingscenes.com

“What was learned had a significant impact on keel design, as it was discovered that through various angles of attack, heel and yaw, there was a marked change in efficiency (lift versus drag) with keels that were aligned exactly fore and aft on the hull.

The LG [Laurent Giles] team considered all the implications, along with Westerly’s insistence that for production reasons both port and starboard keel castings should come out of the same mould – and settled on a design with a 2° toe-in and veed keel base.”

Twin keel changes

So what does this tell us about Laurent Giles’s suggested changes in twin keel design? Firstly, Westerly’s insistence on symmetrical keel foils for ease of manufacture and economic considerations was fortuitous for other reasons.

Early twin keel designs were often asymmetrical – as originally advocated by the Lord Riverdale of Bluebird fame before he realised these were less effective than symmetrical keels. The theory was that the foil shape on the inside face of the leeward keel and flat shape on the outside face would generate lift (like an aeroplane’s wing) and therefore lift the boat up to windward.

Unfortunately, however, the reverse could apply to the windward keel. In addition, the water flow between the keels could produce a braking effect, thereby slowing the boat down. The effect is not unlike putting the brakes on by adopting a ‘snow plough’ stance when skiing down a mountain.

So Laurent Giles’s move to a modest 2° toe-in for maximum efficiency combined with symmetrical foils was the right way to go. The result was a marked improvement in windward performance over older bilge or twin keel yachts. And if they had gone for slightly more draught than 3ft, it would have been even better.

Westerly Griffon 22

But perhaps they continued to learn, because Centaur’s later and smaller sister – the 23ft Pageant – drew only 2in less (at 2ft 10in) despite being 3ft shorter overall. The Pageant sails well and even used to win club races in her early days. And when Ed Dubois came to design the Centaur’s successor – the 26ft Griffon – he went for 3in more draught than the Centaur and drew finer foils with less drag. So twin keel performance continued to improve.

But the early Griffon’s finer keels (with finer roots) also brought boatbuilders’ attention to the often-overlooked risks attached to bilge keels. Westerly fitted their symmetric twin keels by bolting them to small GRP ‘roots’ that formed part of the hull – rather like a GRP version of old fashioned ‘deadwood’. So the finer the keel, the finer this ‘deadwood’ stub also became.

As a result, it needed greater internal reinforcement to resist sideways movement. And the greatest ‘force’ imparted to twin keel roots – where they attach to the hull – is not necessarily encountered when the boat dries out on soft mud. It happens when the boat tries to break free from the firm grip of the mud as the tide returns and attempts to lift the hull clear of this grip. The deeper and more glutinous the mud, the harder it grips and the longer the boat’s natural buoyancy takes to lift it clear. And this is what caused damage to the early Griffon’s keel roots.

Westerly repaired the damage and reinforced subsequent models. But the lesson was there for every builder of twin keel boats to learn. It also explains why a buyer and his surveyor should inspect keel roots when assessing any possible second-hand purchase.

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Hunter Horizon 26. Photo: sailingscenes.com

Hunter Horizon 26

So – to return to the request I put to David Thomas in the early 1980s for a world beating twin keel design. What did he come up with? Predictably perhaps, he took his time. We all reckoned he’d vanished into a mystical twin keel retreat. But the design that finally emerged was well worth the wait.

Thomas reckoned that the optimum angle of heel for comfortable cruising (as opposed to flat out racing) is around 15°. So he designed the keels to attach to the bilge with a 15° splay and to be slightly ‘toed in’. This way the leeward keel would be vertical when the boat was heeled 15° – thereby working at its maximum draught and presenting the biggest possible lateral area to reduce leeway.

Then he placed the keel roots as close to the centreline as was feasible while still making sure that the boat would be stable when dried out. The reasoning behind this was that the closer the keel roots are to the centreline, the less likely the windward keel is to break surface and ‘thump’ when the boat is heeled in a seaway.

The final ingredient to the new generation Thomas twin keel designs produced the most animated discussions with the builder. Any sensible designer wants as much draught as possible – to lower the centre of gravity, increase overall stability and maximise lateral resistance to reduce leeway.

The builder, however, wants to keep the draught low to increase the boat’s appeal from a marketing perspective. So a compromise always had to be negotiated, although Thomas usually won. As a result his twin keelers invariably drew more than the equivalent sized competitors’ boats .

new bilge keel yachts

Hunter Horizon 26 interior. Photo: sailingscenes.com

And how did such twin keels actually perform? Extremely well. Having done initial trials on a Delta 25 hull, the Thomas keels were declared to be a success by boat testers and buyers alike. The time was ripe to introduce the first Thomas-designed spacious family cruiser that could sail well and stand on its own two feet.

The long-suffering Delta hull was dragged into the tooling shop again and given a brand new deck moulding for full standing headroom, an aft heads compartment and a spacious stern cabin. The new model was named the Horizon 26 and duly won the Best Production Yacht Award at the 1984 Southampton Boat Show .

We then walked into an unexpected marketing problem. Boat owners were so used to Thomas performance and handling that they could not believe that a twin keeler would be anywhere near as good. Some potential Hunter buyers even said that they “wouldn’t be seen dead in a bilge keel yacht”.

After a bit of head scratching a solution was found. Every demonstration boat for this and subsequent Thomas cruising Hunters had the twin keel option. Any client asking for a trial sail in a fin keel version would be politely told “I’m afraid we only have one demo boat for each model and it’s a twin keeler. So why not try that and if you aren’t impressed, we can always build you a fin keeler.”

It worked a treat. Initial scepticism invariably turned to disbelief followed by delight. Sometimes a client was taken on a trial sail without being told what sort of keel lurked beneath the waterline. When invited to have a guess after returning to the marina, it was amazing how often the client thought it had a fin rather than twin keels.

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This Horizon 32 twin keeler (draught 1.3m) won a Round the Island race division. Photo: Peter Poland

Bilge keel yacht design evolution

As the years passed by, Thomas’s twin keel designs continued to evolve and performance got even better. In one memorable demolition derby Round the Island Race , a Thomas-designed twin keel Horizon 32 took the heavy winds head on and won its class and its entire division.

The twin keel Horizon 21 and Horizon 30 also excelled in the CHS divisions. Recently a twin keel Horizon 232 helped her octogenarian owner Murdoch McGregor win the Yachtsman of the Year Award for sailing solo around Britain .

Meanwhile other designers began to tweak their twin keels. Ranges such as Moody, Sadler and Westerly also moved up a gear in performance. Thomas refined his twin keel designs by adding long hydrodynamically shaped bulbs to their bases. These had the effect of throwing the centre of gravity even lower and lengthening the ‘footprint’ on which the boats stood when they dried out.

The extra weight located in bulbs lower down also meant keel foils could become finer and narrower, reducing drag. Other boatbuilders have taken note, with ranges such as the American-designed but British-built Legends displaying prominent bulbs on their twin keels.

So, as marinas get ever more expensive, will more builders offer twin keels on their smaller models? Interestingly, the answer is ‘yes’. But it’s not coming from the UK. It’s coming from France.

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Django 770 twin keel yacht drying out

French bilge keel yachts

In the past there were economical marina moorings aplenty available in France, so twin keels did not feature high on the French agenda. But now things are changing. The cost of a marina berth in France is still reasonable compared to the UK: but only if you can find one.

The French Nautical Federation reckons there is now a shortage of around 50,000 marina berths. As a result, twin keels (or bi-quilles as they’re called over there) began to appear in greater numbers.

Now, with the exception of the traditional and long running Biloup Range, French twin keels are expanding the design envelope. Archambault, the builders of the Surprise range, decided that their hugely successful One Design (7.65m) cruiser-racer would have an increased market if they also offered a two-legged version.

Designer Michel Joubert went for deep (1m) twin keels with narrow chord foils and race boat bulbs on their bases. The roots are well inboard and the performance is said to be exceptional.

RM-Fora Marine specialises in multi chine plywood-epoxy hulled cruisers, invariably with twin keels. The latest models, from the pen of leading French designer Marc Lombard, are anything but conventional.

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A new RM890 ready to hit the road. The twin keels draw 1.5m. Photo: RM Yachts

Draught is generous (for example the twin keel RM890 draws 1.5m) with keels that are as fine as you’ll find on a top-level racer. And the bulbs on their bases are just as sophisticated.

These RMs are exciting and versatile boats, although I wonder whether their futuristic looks and multi chine wooden hull construction will find favour with many British buyers. I hope so, because the combination of a plywood-epoxy hull with a GRP deck offers excellent insulation and a substantial strength to weight ratio.

The Django 7.70 designed by Pierre Roland and built by Marée Haute in France has also proved to be a speedy twin keel 25-footer capable of crossing many oceans. Christophe Mora and Carina Juhhova are currently in South Africa after sailing L’Envol across the Pacific and Indian oceans. Their progress reports on intothewind.fr are fascinating.

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Django 7.70 L’Envol has a scrub in Brazil on her round the world cruise. An aft strut supports the stern. Photo: Christophe Mora

So far Django 7.70 L’Envol has crossed the Atlantic, cruised down the East coast of South America to Patagonia, across the Pacific and sailed the Australian coastline before moving on to South Africa.

The Django range comprises the 6.70 (lifting keel only), the 7.70 (fin or twin keel), 9.80 (fin or twin keel) and 12.70 (fin or lifting keel). The twin keel Django 7.70 that I tested was a total delight.

The future of bilge keel yachts?

So what lies ahead? With only a handful of French yards offering new twin keel boats, there is a dearth of choice in the new boat market. Of course, sailors can always buy second-hand while they await new arrivals. But be sure to get those keel roots surveyed and check rudder and keel bases for grounding damage.

I can’t help thinking that as designers come up with ever improved twin keel designs, something will soon have to give. As British marina costs move beyond the means of many boat owners and French marinas reach maximum capacity, maybe there’s a new twin keel dawn just over the horizon?

Exciting new twin keel designs might even persuade production boat builders to market new boats under 30ft again? Some may even sprout foils and try to fly!

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Compass Articles

  • February 2, 2024

Bilge Keel Hulls: Combining Stability and Shallow Draft

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What are Bilge Keel Hulls and Why Do They Matter?

Ever wonder how some yachts manage to stay stable in choppy seas and still glide into shallow areas without a hitch? That’s where bilge keel hulls come in. They’re like the secret ingredient for yachts that want a mix of steadiness and the ability to cruise near the shore. Bilge keels are basically two smaller fins that stick out from the bottom of the yacht on each side. This design is a bit of a game-changer for those who enjoy sailing in coastal waters.

The Perks of Having a Bilge Keel Hull

Yachts with bilge keel hulls are a big deal for a bunch of reasons. They offer better stability when the water gets rough, and they don’t need super deep water to sail, which means you can explore places other yachts can’t. Bilge keels also give you more peace of mind when anchoring, because the yacht won’t tilt too much if the tide goes out.

Bilge Keels Impact on Yacht Interior

You might think that something going on outside the yacht under the water wouldn’t really affect what’s on the inside. But it does. Bilge keels have this neat way of freeing up space on the inside, letting yacht designers get more creative with layouts and amenities. That could mean anything from an extra cabin to a dedicated entertainment area.

More Room to Move and Groove Inside

Since bilge keels are designed to be efficient with space, yachts sporting them often end up with some bonus room. That means you get wider hallways, bigger bedrooms, and even those little cozy corners for reading or enjoying your morning coffee with a view.

Stability on the Water Meets Comfort in Your Cabin

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With bilge keel hulls, it’s not just about having a stable ride; it’s also about feeling the comfort and security that comes with it. Think less rocking and rolling in your yacht when there’s a bit of a swell. That translates to more comfortable sleep and dinners that stay on the table, not on your lap.

A Solid Foundation for Your At-Sea Adventures

By giving you a stable base, yachts with bilge keels make a bunch of at-sea activities more enjoyable. So if you love the idea of yoga at sunrise on the deck or just relaxing without feeling queasy, the design of bilge keels has got your back.

Bilge Keels: The Tech Behind the Concept

It’s not just about slapping a couple of extra fins on the bottom of a yacht and calling it a day. There’s a lot of science and tech that goes into making bilge keels work just right. Designers and engineers use complex algorithms and simulations to create bilge keels that do their job without making the yacht slower or harder to handle.

High-Tech Tools for High-Seas Living

Designers nowadays have all kinds of tech at their fingertips to perfect bilge keel hulls. They use software to test and tweak every aspect of the design until they’ve hit the sweet spot of stability, space, and performance.

Why Bilge Keel Yachts Might Be Right for You

So, whether you’re an old hand at yachting or new to the scene, bilge keel hulls have a lot to offer. They’re like the Swiss Army knife of the yacht world; they keep you steady, let you get up close to all sorts of neat places, and they maximize every inch of your interior space.

Your Next Steps Towards a Bilge Keel Yacht

Thinking this all sounds pretty good? If you’re ready to dive deeper into the world of bilge keel yachts, Fly Yachts is your go-to source. We understand the ins and outs of these unique designs and can help match you with a yacht that ticks all your boxes. Get in touch with a Fly Yachts team member today – let’s turn your yachting dreams into reality without ever skimping on stability or seclusion.

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Better Sailing

Bilge Keel Vs Fin Keel: Which is Better?

Bilge Keel Vs Fin Keel: Which is Better?

Keel design is constantly changing, and nowhere is this more evident than in current racing yachts. To stay upright when sailing upwind, these speedy offshore monohulls feature very sophisticated canting keels. The boats are made to be as light as possible while remaining strong enough to compete in ocean races. While cruising yachts aren’t built to compete in ocean races, there are a variety of keel designs to choose from. Traditional boats have long, deep keels that are an inherent component of the hull, making them heavier than modern designs but also more stable and seaworthy. Fin-shaped keels, which are bolted beneath the hull, are found on many modern boats. This results in yachts that are lighter, faster, and more maneuverable than deep keel designs. In this article, I will compare the bilge keel vs the fin keel types. So, if you’re interested to learn more, then keep reading!

So, what do we mean by fin keel? This is the boat’s major structural component. It is also known as the vessel’s backbone, as it runs longitudinally across the hull from bottom to top. The keel is built of robust material and runs from the stem to the stern to ensure the boat’s stability. It is usually made of metal or wood. A fin keel is a long, weighted blade that is affixed to the hull’s bottom. It is more agile, lighter, and faster than a full keel, but it is also more vulnerable. A lever is created by the increased distance between ballast and sails, which eliminates the need for a big wetted surface or additional ballast. Popular sailboats with a fin keel include the Hunter 34, the Bavaria 40, and the Catalina 30.

Fin keels are bolted to the hull and are deeper and thinner than full keels. They’re also less heavy. This significantly improves performance, making fin keels much faster in all scenarios. Fin keels, on the other hand, have a number of significant drawbacks. Fin keels are less comfortable than full keels because they allow for more heel and a less stable track. Thus, this results in less directional stability. Fin keels are also much more vulnerable than full keels, which means that when they run aground, they can break off or be damaged. Keep in mind that fin keels are greatly used by racers because they maneuver better in tight spots.

There’s another distinction on fin keels; fin keels with skeg rudder and fin keels with spade rudder. A small structural element in front of the skeg rudder protects fin keels with skeg rudders. This design is largely integrated into the hull, making it less vulnerable and providing a wonderful balance of speed and safety. The rudder on fin keels with a spade rudder is entirely exposed, and the fin is normally bolted on. Because the keel isn’t integrated into the hull, it’s more susceptible to damage and uncomfortable.

Fin Keel Pros and Cons

Pros and Cons of Fin Keels

A fin keel with a spade rudder is a common option nowadays. It is usually combined with light but beamy hulls with a high freeboard. Excellent speed, high pointing, and quick tacking are all benefits of a low wetted surface and a good aerofoil design. Steering is also lighter. Also, the best designs of a fin keel with a spade rudder are capable of cutting through strong seas with moderate comfort. Note that when sailing downwind, a fin keel with a spade rudder is fast, quick to surf, and might even be able to plane.

The disadvantages of a fin keel with a spade rudder are that it requires earlier reefing and it is less steady on the helm. Another disadvantage that applies when sailing downwind is that it can broach suddenly and easily and hard to control in rough conditions. Also, slamming can be caused by flat sections and in rough weather lightweight designs can be uncomfortable. They also have a strong tendency to round up when hard pressed. Moreover, when sailing downwind, this type of keel can be unstable and hard to control in rough weather conditions.

A fin keel with a skeg rudder has some minor differences to the latter type. Note that the skeg running aft protects the rudder and facilitates tracking both under sail and power. Generally, a fin keel with a skeg rudder offers better support for the rudder. There’s also less chance of damage than with a fin keel with a spade rudder. On the contrary, there’s a more wetted surface thus it makes it slower. Also, as a result of limited balancing, this can make the helm heavier.

But, what are the benefits of a well-designed single keelboat over a double keel model, then? Because it is difficult to create a twin keelboat with a truly deep draught, a moderate draught twin keel vessel may outperform a sister boat with a single keel of the same draught, the deep keel variant will always be faster. Furthermore, compared to a twin keel model, a boat with a deep single keel will have less wetted surface area and hence less drag. This is especially important in light weather when the twin keel is at a disadvantage.

Fin Keels Properties

The keel was once employed to keep the ribs together as well as to keep the stem and sternpost in place. As you may know, there are several types of keel.  The most common ones include the full keel or ballast keel which is used for stability and lateral resistance. Also, the drop of sliding keel is used to prevent the boat from side slipping. In addition, the bilge keel is a common shoal-draught option and the fin keel is generally faster and lighter.

So, the fin keel is a narrow plate in the middle of the ship, situated to the keel of a boat. It is made of wood or metal and extends downwards. A fin keel’s main purpose is to produce lateral resistance and make the boat more stable. Moreover, when a boat has a fin keel, it is easier to steer. This keel is usually nearly half the length of the boat’s bottom, and it aids in reducing drag and creating less leeway. As a result, the boat may travel quicker while remaining more stable in relation to its weight.

Note that fin keels are even more efficient when paired with current sail design and materials. The fin keel is now a separate rudder, such as a skeg hung or spade, and it is the most prevalent type of keel. As aforementioned, fin keels have various drawbacks, such as poorer directional stability, for some. They’re also more difficult to design and support when it comes to hard grounding. An excellent component to compare boats on is the fin keel. When looking at boats and their characteristics on boat comparison databases you can find more information about a specific type. For instance, details about the size, material, and stability of the fin keel used on various boat models.

>>Also Read: Sailboat Keel Types

Bilge keels are planes or fins that fit externally at the bilge’s turn. Their length is normally around a third of the ship’s length. Sometimes they might be larger, but seldom surpass half of the ship’s length. Depending on the size and fullness, their depth ranges from 1 to 2 feet. If they are too shallow, their performance will be limited. Yet, if they are too deep, damage may occur while berthing alongside, drydocking, or running aground.

A bilge keel is basically a double keel with double fins that allow the boat to be beached and stand upright on its keel. Bilge keels provide twice the wetted surface, increasing comfort, and directional stability while lowering heel height. Due to improved design, modern bilge keels frequently give an adequate windward performance. When contrasted to the fin keel, the bilge keel sacrifices speed but does not necessarily give a lower overall performance. Examples of common sailboats with a bilge keel include Dufour Dynamique 62, Patagonia Patago 39, and Hunter Duette.

Bilge keels are the most common passive system, and they are installed on the vast majority of boats. They are basically plates that protrude from the bilge turn and span the middle half to two-thirds of the boat’s length. In general, they do not protrude beyond the boat’s side or keel lines so as to minimize damage. But, they must reach the boundary layer around the hull to be functional. In addition, they induce turbulence by producing a body of water to flow with the boat, dampening the motion and generating an increase in period and drop in amplitude.

Bilge keels are surprisingly common on many boats, both private and commercial because motorboats often lack stability, and this is an elegant, simple, and strong solution. The fins aren’t very wide, and they don’t protrude very far outwardly, so it’s a simple design to build and utilize. On sailboats, though, things are a little different. Because the bilge keel’s purpose is not only that of a stabilizing device, but also that of a keel, they tend to be longer, resulting in the appearance of legs of sorts.

The primary function of a bilge keel on most ships is to help dampen the rolling motion of the vessel. Other minor benefits of the bilge keel include bilge protection during grounding and greater longitudinal strength at the bilge. The bilge keel’s dampening function is tiny but effective, and it comes at no expense after boat construction. It is carefully positioned on the ship to avoid excessive drag when underway. Moreover, alternative positions of the bilge keel may be tried on the model so as to anticipate power requirements in order to obtain a minimum drag.

Bilge Keel Pros and Cons

Pros and Cons of Bilge Keels

Bilge keels have a number of distinct benefits over full and fin keels. The fact that the boat can be beached is the most essential feature, making it a popular design in tidal areas. The use of bilge keels is particularly popular along the British coast, where fishermen keep their boats in tidal ports. Another significant benefit is that the boat may be stored on its keels, which makes dry storage and maintenance much easier.

Bilge keels are more effective for high angles of roll than for small angles of roll. Also, the reduction in rolling motion is larger for a boat moving forward than for a stationary boat. The roll energy of the ship is passed to the water particles in the region of the ship’s hull, making them passive stabilizers. Keep in mind that the installation of bilge keels is not suitable for all ships. An icebreaker, for example, requires clean hull contours so that boat will be able to steer onto the ice and collapse it.

The bilge keels have huge levers around the rolling axis, and the forces on them provide a large moment opposing the rolling, despite their size. They have the ability to reduce roll amplitude by more than a third. Their impact is often amplified by forwarding speed. Note that in still water, they are aligned with the flow of water past the hull in order to reduce drag. When the ship is rolling, the drag increases, causing the ship to slow down slightly.

Bear in mind that a sailboat with bilge keels can stand upright on flat terrain due to their length and the fact that they extend beyond the lowest point of the hull. The advantage is undeniable in this case. The ability of a boat to stand upright while aground greatly expands your options. If you prefer to spend the night on the shore, your boat can stand flat. Many keelless boats, or those with retractable keels, take advantage of this feature as well. It’s also something that makes life a lot easier for sailors, especially in low-tide locations.

So, the major advantages of bilge keels include a shallow draught and great protection when grounding. In addition, a bilge keel can dry out on a flat bottom and some designs are also able to perform better windward than long keels; similar to fin keels. On the other hand, the disadvantages of bilge keels include less speed and pointing when sailing windward. Also, when the boat is well-heeled it is possible that waves might slap under the windward keel. Lastly, it can topple over in case one keel encounters a soft ground or a hole.

Bilge Keel Properties

Keep in mind that bilge keels are a broad term that encompasses a wide range of design modifications. Bilge keels are, strictly speaking, additional to a long central keel installed near the bilge. In this case, the hull turns from the bottom to the side of the boat. These were traditionally non-structural, shallow, and lengthy, with the goal of reducing rolling. Twin keels, on the other hand, completely replace the central keel and are structurally modified to make them the principal ballast-bearing hull appendages.

There were some early twin keel designs that simply placed two shallow-draught keels on either side of the centreline. Meaning that they were situated at right angles to the waterline and parallel to the centreline. However, these boats used to sag to leeward when sailing upwind and lacked sufficient hull reinforcing at the attachment spots. So, modern keels were developed and they are now more hydrodynamically aligned. In addition, some say that they give at least as much lateral resistance as a single keel, but with more drag in theory.

Because of the additional reinforcement needed to handle loads of the ballast and drying out, a boat with two keels will be heavier. Subsequently, it will have a higher center of gravity due to the reduced draught. Modern construction, narrow-chord keels, and ballast bulbs, among other things, help to mitigate these issues.

Bilge keelboats are usually regarded to provide the advantages of short draught and the ability to dry out upright in low water at the sacrifice of performance. However, that is not the full picture. In other words, a well-designed twin-keel boat may perform better on average than some single-keel boats. It must be stated, however, that many of the early bilge keel designs were ineffective. These had very shallow keels with little to no aerofoil shaping and were attached to the boat vertically. It’s no surprise that these boats didn’t sail well, especially windward, despite having high directional stability, which has long been a desirable feature in cruising boats.

>>Also Read: Full Keel Vs Fin Keel On Sailboats

Bilge Keel VS Fin Keel – The Bottom Line

The comparison between bilge and fin keels can be a contentious subject. While it may appear that fin keels are preferred by the majority of new boat buyers, there is a sizable undercurrent of sailors who prefer boats that can take the ground. While fin keels theoretically give a deeper center of gravity, marginally less drag, and greater lateral resistance, making them better at sailing to windward, they are a recent development, and it wasn’t long ago that all sailboats were long-keeled and could dry out on legs or alongside a harbor wall. If you want a stable boat and the ability to beach your boat and don’t really care about performance then go for a bilge keel. If you opt for speed and agility go for a fin keel boat but note that these tend to be more vulnerable to damage.

I hope that this article will help you make the right decision. Good luck with your research!

Peter

Peter is the editor of Better Sailing. He has sailed for countless hours and has maintained his own boats and sailboats for years. After years of trial and error, he decided to start this website to share the knowledge.

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How keel type affects performance

  • Chris Beeson
  • December 2, 2016

James Jermain looks at the main keel types, their typical performance and the pros and cons of each

Keel type

A fin keel and spade rudder configuration gives high pointing but can be sensitive on the helm Credit: Graham Snook/YM

Keel type

James Jermain has tested hundreds of yachts in his 30 years as Yachting Monthly’s chief boat tester

The performance and handling of a yacht depends on many things, but perhaps the most important single feature is the shape of the hull and the profile of the keel. Over the years hulls have become shallower and keels narrower, but for many types of sailing this progression is not necessarily progress. Of the various shapes that have evolved, each has its own advantages in different circumstances. Here is a run-down of how they may fit your sort of sailing.

FIN KEEL WITH SPADE RUDDER

Keel type

A low wetted surface area and aerofoil shape means speed and agility

The most common modern option, usually combined with light but beamy hulls with high freeboard.

GENERAL AND TO WINDWARD

  • Low wetted surface and good aerofoil shape means good speed, high pointing and quick tacking
  • Light steering
  • Best designs can slice through heavy seas in reasonable comfort
  • High volume, light-weight designs can be lively and tiring in heavy weather
  • Flat sections can cause slamming
  • Less steady on the helm, requiring more work and concentration
  • Strong tendency to round-up when hard pressed
  • Generally require earlier reefing
  • Can be unstable when hove to
  • Quick to surf and may even plane
  • Can broach easily and suddenly
  • Can be directionally unstable and hard to control in heavy conditions

UNDER POWER

  • Handling is precise and turns tight and quick
  • Some handle almost as well astern as ahead
  • Limited lateral area so susceptible to beam winds at low speeds
  • An unattended helm can slam over suddenly

FIN KEEL WITH SKEG RUDDER

Keel type

The skeg running aft protects the rudder and improves tracking under sail and power

Similar to above but with some key differences.

  • Skeg provides better support for the rudder
  • Tracking under sail or power is improved
  • There is less chance of damage
  • More wetted surface so potentially slower
  • Objects can get stuck between rudder and skeg
  • Limited balancing can make helm heavier

Keel type

The mass of a long keel is often more seakindly and will carry way well.

The traditional option, usually found on pre-1970s designs.

  • Good tracking
  • Slow, soft, comfortable motion
  • Drive powerfully through short seas but can be wet
  • Carry way through tacks
  • Resist rounding-up
  • Heave-to well
  • High wetted surface area and a poor aerofoil shape, so speed reduced, tacking slow, leeway increased and pointing ability reduced
  • Long ends can cause hobby-horsing
  • An unbalanced hull or rig can cause heavy helm
  • Track well and very resistant to broaching
  • Very stable in heavy conditions
  • Reluctant to surf (a mixed blessing)
  • Carry way well
  • Track straight
  • Heavy construction can reduce vibration and noise
  • Large turning circle ahead
  • Unpredictable and hard to control astern

LIFTING OR SWING KEEL

Keel type

A lifting keel enables beaching, but beware of stones jamming the plate

The ultimate shallow-draught option.

  • A fully retracting keel offers shallowest draught
  • A well-designed lifting keel can be very efficient and fast
  • Grounding on anything other than soft mud or sand can damage an unprotected hull
  • Stub keels offer better protection but are less efficient and prevent level drying out, except in soft mud
  • Stones and dried mud can jam the lifting plate
  • Internal keel boxes reduce accommodation space
  • Directional stability is poor
  • Early surfing and planing
  • Control can easily be lost in strong winds
  • Good performance and handling with keel down
  • Directional control increasingly poor as the keel is raised

TWIN OR BILGE KEEL

Keel type

A bilge-keeler will dry out upright on a flat bottom

A popular shoal-draught option in Britain, less so abroad.

  • Shallower draught
  • Dry out upright on a flat bottom
  • Good protection when grounding
  • Good designs are better to windward than long keels, almost as good as fins
  • Pointing and speed to windward is reduced, considerably so in older designs
  • When well heeled, waves can slap under the windward keel
  • Can topple over if one keel finds a hole or soft ground

Modified water flow over the wing keel foot can give the motion of a longer, heavier boat

Modified water flow over the wing keel foot can give the motion of a longer, heavier boat

Once popular, now largely replaced with various types of bulb.

  • Reduced draught
  • Low CoG means good righting moment
  • Modified water flow over keel foot means greater efficiency and gives the motion of a longer, heavier boat
  • More likely to pick up lobster pots, etc
  • Risky drying out
  • Weed and barnacle growth under wings difficult to remove

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Bilge Keels

Bilge Keels to Dampen Roll ?

The following is my reply to a guy who is having a new 462 DUCK built and asked me about fins, or “bilge keels,”as they’re called, to dampen roll. I don’t think much of the idea!Since I get this question every now and then I decided to post parts of my letter here as a “Random Thought” so I can, like I do with much of the other stuff, refer the next guy who asks me about it to look here!

I’d not put the heavy ballast in it because even with a more dedicated sailing rig the boat is still, at best, a motorsailor which means it won’t be tacking to weather, which means it doesn’t need the low ballast to hold it up. All that will do is help make a jerkier motion. In my opinion anyway.

Don’t dismiss your thoughts on naval artichokure. Years of experience on boats is worth far more than knowing which text book has which formula to prove which assumption. No, I have no problem withMr. XXXXX (a Famous Naval Artichoke who advocates stuff like fins)used on it. My observation of his work is that he gets off on some interesting tangents that result in unusual shapes that at the very least raise hell with construction costs. I’m sure they accomplish wonderful things but how much more so than NOT adding them is the question, and of course how costs are effected is another good one. For most people anyway.. He describes model studies that prove his points and I won’t argue them. I personally follow L.Francis Herreshoff’s thoughts on models in that the scale stuff and full size stuff are different. But as I’ve said, I am stuck in my ways and no, I couldn’t work with him on it because as I’ve said, I think the idea is a mistake. Frankly, I think about everything related to safe seagoing powerboat design was worked out by 1930. I think if big fins had much positive effect they would be commonly seen. That idea is NOTHING new and has been used for years on sailboats and some powerboats that were required to stand on their feet at tide changes. Yet the same countries and designers and seamen who used these types of boats, when keeping their boats in deep water ports, even with fishing boats and ferries where slower roll and more stability would be appreciated, didn’t use the fins. They weren’t all inbred and unimaginative hicks so I suspect they too thought the fins didn’t do anything for stability…..

But that’s just my opinion……

I also think that many of the new designs that use these odd bulges and protrusions all share the similarity of being way to high and wide for their length, based on proven seagoing design ideas, so anything they can do to help their motion is appreciated. Most of these new boats are about as similar to the DIESEL DUCKS as a dump truck is to a pickup. The captain of one of these new creations told me if his stabilizers ever failed he believes the boat would roll over………

Anyway, that’s what I think about that!

new bilge keel yachts

View from our table in Sorento, Italy, March 2004. Nice little town. Rich though…. I realize this photo has absolutely no connection to the subject here but I was thinking about it so decided to post it!

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Check out Moscow’s NEW electric river trams (PHOTOS)

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Water transportation has become another sector for the eco-friendly improvements the Moscow government is implementing. And it means business. On July 15, 2021, on the dock of Moscow’s ‘Zaryadye’ park, mayor Sergey Sobyanin was shown the first model of the upcoming river cruise boat.

new bilge keel yachts

The model of the electrical boat with panoramic windows measures 22 meters in length. The river tram - as Muscovites call them - has a passenger capacity of 42, including two disabled seats. The trams will also get cutting edge info panels, USB docking stations, Wi-Fi, spaces for scooters and bicycles, as well as chairs and desks for working on the go. The boats will be available all year round, according to ‘Mosgortrans’, the regional transport agency. 

new bilge keel yachts

Passengers will be able to pay with their ‘Troika’ public transport card, credit cards or bank cards. 

The main clientele targeted are people living in Moscow’s river districts - the upcoming trams will shorten their travel time in comparison to buses and other transportation by five times, Mosgortrans stated. 

new bilge keel yachts

As the river trams are being rolled out, Moscow docks will also see mini-stations, some of which will also be outfitted with charging docks for speed-charging the boats.  

new bilge keel yachts

Moscow is set to announce the start of the tender for construction and supply in September 2021. The first trams are scheduled to launch in June 2022 on two routes - from Kievskaya Station, through Moscow City, into Fili; and from ZIL to Pechatniki. 

new bilge keel yachts

“Two full-scale routes will be created in 2022-2023, serviced by 20 river trams and a number of river stations. We’ll continue to develop them further if they prove to be popular with the citizens,” the Moscow mayor said .

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Equipped with ice-breaking technology, these huge fancy yachts are the only river cruisers running all year around. The round trip journey takes two and a half hours and floats past all the big sights like the White House, Novodevichy monastery and the Kremlin. There’s a large open air observation deck up top, while the main body of the ship houses a restaurant with a dance floor for a romantic post dinner dance. For a particularly romantic experience take one of the evening boats and admire the bright lights of the city skyline at night.

The most relaxing and picturesque tour that Moscow can offer: a great way to see the city center and its main attractions. This is a perfect alternative to exploring the city by car, if you only have time to do sightseeing during weekday rush hours.

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13 Popular Full Keel Sailboats Worth Considering

Full keel sailboats are very stable and durable - they are great for cruising long distances. But there are disadvantages too. Let's look at what models to consider, and why.

new bilge keel yachts

Here are 13 good full keel sailboats that are worth considering:

Nicholson 32

Island packet 380, folkboat 25, cape dory 36, vancouver 32, tradewind 33, endurance 50, westsail 32, hans christian 52.

First of all let's have a look at why you should even be preferring full keel sailboats to a more traditional, widespread classical fin keel design.

Full Keel Advantages

As with everything, there are plenty of pros and cons on each side. Full keels generally provide better handling if the weather gets tricky, they track better, provide more stability downwind, and generally stabilize the boat movements better.

Furthermore, they are way more robust, thus less prone to damage. Running ashore isn't as big of a deal as it is with a fin keel and your rudder and propeller will be more protected with the mass of the keel in front of them.

Full Keel Disadvantages

With more mass and drag comes less speed. Plus the large surface area underwater holding the direction will result in a wider turning radius, which might be annoying in smaller spaces.

new bilge keel yachts

Fin Keel vs Full Keel: Pros and Cons & When to Choose Which

Fin keel advantages.

The largest advantage of fin keels is their speed. They also provide better maneuvering and a better turning radius.

Fin Keel Disadvantages

It is inevitably more prone to damage though, wear and tear will be a way bigger issue than a full keel. They won't have your back when a gust comes since the water-resistance to the side will be smaller.

It seems then that for serious longer passages, liveaboards, and long-term sailing, full keels are better. As long as you don't care for speed as much, but are concerned about the boat having your back, this is the answer. So let's now look at the superstars of the full keel universe.

The very prototype of a long-distance tough cruiser. It has been with us since 1963 and happens to be among the first fiberglass boat models produced on a mass scale. Nicholson 32 went out of production in 1981 and it was a model approved for the 2018 Golden Globe Race, proving that even older Nicholsons are still standing strong due to their toughness and ease of repair.

They were supposedly as durable as if made out of steel. Though I'll leave up to you whether you want to see that as a marketing claim or reality, such a statement can not be made without some base.

Plus the newer models have a lot of interior space, are manageable for solo sailing, and provide a sturdy ride to take one around the world.

The story here is similar to the above Nicholson - meaning that we are looking at one long-lasting high-quality cruiser. Not just because of this specific model's build - Island Packet in general was always known for this. And it is among the very few companies that, in the modern era, keep making full keel boats.

In other words, you don't see many shipyards focusing on full keels these days, so if you want one and you would rather go with a new boat, Island Packet will be one of the stops you will very probably make when doing your research.

If you are looking for reliable cruisers, you will like this one, since cruising is what it was built for, even if it meant sacrificing some performance aspects. It has a wide beam, a lot of interior space, all of the amenities a comfy cruiser should have, such as a big refrigerator with a freezer, as well as a fully equipped kitchen. The long keel here serves as a comfort helper, since, as mentioned before, it adds to the stability and reduces motion.

Not to sound repetitive, but the word 'reliability' has to be mentioned again. It seems that boat builders who choose the full keel design have something in common.

But since this particular boat was born during the Second World War and has been going strong to this very day, what other words to describe it? It has the Nordic blood in its veins since it was thought into existence by the Scandinavian Yacht Racing Union and since it prefers just about everything over comfort.

The boat is very stable, not just because of its full keel, but also because of its insane 55% ballast ratio. For those who haven't come across this before, the ballast ratio is the ratio of the ballast weight relative to the boat weight. So for instance the nearly 9 tonne Bavaria 40 with its almost 3 tonne ballast has a ballast ratio around 30 percent.

Thus you can imagine that a boat that 'wastes' more than half of its weight on ballast is serious about rigidity. These are performance racer numbers. But of course, if you are designing a boat that has to withstand the Scandinavian storms, you don't have a choice than to go overboard with specs. So if this toughness is what you seek, look no further.

...although as far as I know, all Cape Dory boats have full keels, regardless of their length. Their 36-foot model is just their most popular one. Cape Dories are known for their sturdiness, ability to cross the oceans because of their stability, and relative ease of handling.

They were engineered by Carl Alberg, who was inspired by the Scandinavian Folkboat, where reliability is worth more than comfort, or the interior space. This boat rocks a heavy rig for hardcore traveling, but its 1.5-meter draft makes it ideal for coastal cruising as well.

What's quite interesting about this particular model is that during its lifespan it went through very few changes. Boats usually evolve, sailors' feedback is taken into consideration for upgrades, but Cape Dory 36 remained relatively unchanged inside or out. This is a big compliment, since the brand started out in 1963, stopped production in 1991, and sold its blueprints so that they could be built further. Talk about longevity.

Let's progress in technology! Just because a long keel is an old-fashioned or more traditional approach, it doesn't mean it remains monolithic in its ideology. There were innovations in the concept, such as cutaways in the keel, to reduce the biggest drawback of this design, the drag.

So it only makes sense that Vancouver, a company that had distinctiveness and innovation in its mission and vision, would take part in this. Their 32-foot model that begun its lifespan in the early eighties, had a deeply cutaway forefoot, plus a rudder that was wider the deeper it was underwater, meaning its widest point was at its lowest point. This was to increase efficiency, and rudder response.

Technicalities aside, this boat was very well made, no corners cut, no expenses spared. This resulted in quite pricey vessels, out of reach of many, but much time has passed since, so today it can be yours for around 40 000 USD and up. And since the build quality was so high back then, you can still enjoy a proper boat, usually at a higher quality than boats equal its age.

The great thing about Australian sailboat makers is that they design their boats for long passages. How else would they get off of the continent? Freya 39 is a good example of this since it has not only circled the globe many times but also won the Sydney-Hobart Yacht Race three times consecutively. And that's a famously hard race.

The boat is built like a tank, with thicker fiberglass walls than you would find in its rivals. Despite that, its owners claim to have crossed over two hundred miles per day on it, a figure that is well known when it comes to this model. Which sounds plausible with its 7.8 kts of hull speed.

Its construction makes her one stable boat since it has been noted that during races, it was able to carry a spinnaker longer than its competitors, well into the 30 knots of wind speed.

The only drawback here is that if you fancy it, since it is so highly valued, and in demand, it will be tricky to find one to buy. And once you do, prepare to pay around 60 000 - 90 000 USD for it.

This one comes with a story attached to it. Once upon a time, a naval engineer Nick attempted to sail around the world. Halfway through, his boat gave up, which meant a lot of trouble for Nick, but he exited this disaster with a pretty precise idea for what his next project would be. He set on to design a boat that would be so sturdy that his sailing misfortune would never repeat.

Out of this incident paired with a smart brain, Wylo 2 was born. To make sure his design stands, after putting this boat on the water, he proceeded to live on it, while circling the globe a few times.

Others, seeing this success, bought his designs and they became quite widespread. As you might have guessed, this boat has a lot of space for living, for storing equipment and provisions, so it is comfy to live on, not only for your body but because of its sturdiness, for your mind too. These designs have accomplished some astonishing feats in all corners of the world, so if you put your trust in this design, you won't be making a mistake.

If I said this boat is sturdy and ready for just about any destination, I'd really be repeating myself now. So while that's true, let's talk about what's special about Tradewinds 33.

It has a rather small cockpit, so on-deck dinners while watching the sunset with the whole crew might be a bit improvised, but the space saved is used for an impressively spacious interior as well as a nearly flat deck. So moving about is a pleasure.

For liveaboards, this is a good idea, since storage space will be plentiful. Plus it's an elegant looking boat, with a forestaysail as a default setup. So rock on.

Time for a larger boat. So that if you want something that won't lack anything you might wish for, including space, I have something for you too. All Endurances are full keels, so if you fancy a smaller model, there is a way.

Even though it is relatively new, (you will find models from around 1995) it will make you feel like a medieval pirate, with its old-school helm, wooden interior, and a spacious aft cabin that has large windows facing back!

It is a proper bluewater cruiser, built in South Africa based on a famous Peter Ibold's Endurance blueprint. It sleeps a whole family, so if a circumnavigation with a few friends is what you seek, this is one for you.

If you are up for some single-handed sailing, pause here for a bit. Small sailboats are usually nimble, on the top of it, this one is also quite sturdy and stable, as full keels are.

You won't find much space below the deck, so don't expect to have a party of more than around two people, but at least it's a good looking interior, with charming round windows and many of the usual amenities.

They say that Mason sailboats are premium quality for a non-premium price. I wonder whether them being built in Taiwan has something to do with it.

Here is a quote by an owner of a 1986 model that says it all: "I am absolutely captivated by the boat and am not objective at all in my feelings toward her. The general construction is of the highest standard. Like an Irish hunter, she is a workhorse and a lady-maybe not quite as fast around six furlongs as a racehorse, but for the long pull, through timber, brush, and over walls, she is really something."

Now although this owner admits subjectivity, this boat indeed was built with quality in mind. Sturdiness too - not only is its fiberglass hull properly solid, but it also features longitudinal stringers to add further rigidity.

There is a lot of brightwork, which might sound nice at first glance, but since it requires quite a lot of maintenance, some owners even said they could do with less wood if it meant less upkeep.

All in all though, when it comes to getting a lot of boat for not a lot of money, this is it.

Does it make sense to even praise how heavy and sturdy this boat is built? Probably not at this point. Just know it ticks all the boxes. It is made of 12 layered fiberglass for Pete's sake.

The design was based on ideas of the Norwegian engineer Colin Archer, who made his boats such that they could withstand the northern seas. Pair that with the fact that the interior here is surprisingly spacious with 6 ft 2 in of headroom and you've got yourself one comfortable circumnavigator.

The issue stemming from the heavy build and a full keel, which is a slower pace, applies here more than usual though. This boat is absolutely reliable, but don't expect winning speed races.

Sadly, Westsail 32 was in production only for some 9 years. Sales were booming, they made over 800 boats, but bad business practices and cash flow issues resulted in its demise.

Not the author, the boat. If beauty and elegance are what you are after, this one will catch your eye. Just as was the case with Mason, these boats were produced in Taiwan. But since the goal of the engineers was to create the 'ultimate cruising sailboat' and they spared no expense, expect to pay hundreds of thousands of dollars for these boats, even though decades old.

The gorgeous classical design paired with the high build quality makes these exclusive pieces of work, plus quite a modern one since they ceased production in the 90s. So if you don't mind the higher price mark and are looking for something relatively new, that will, thanks to the build quality, last you for many years to come, this might be your choice.

Full keel sailboats are sturdy. Not only is that because of the full keel which itself provides a lot of structural integrity. But also because the choice of putting the full keel in means you are building something that prefers ruggedness and reliability over anything else. So it is logical that the rest of the boat will be built in the same fashion.

So if you don't mind sacrificing the few knots of extra speed, if you don't mind the smaller pool to choose from, if you want a boat that will have your back in pretty much any situation and place you will choose to go to, if you want to sail the Scandinavian design, go for it.

Arthur Rushlow

What a great page. Both my wife and I sailed Faulk Boats out of Canada prior to our moving to Florida. Once we arrived in Florida we had a Soveral 26 built we raced for three years prior to my returning to College and now 5 degrees later I am an Anglican Bishop with no boat.

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Lit’l Coot 18 Bilge Keel

Devlin Boats , Kits , Sailboats

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A 9.9 4 cycle outboard is about ideal, economical and quiet. Unlike most small sailboats of this size, the outboard is offset to clear the rudder. The result is that on either tack, the motor is not in an ideal position. Sam has solved that problem by fitting dual rudders. Superior.

The tabernacle hinged mast makes rigging at the boat launch a breeze. Simply raise the mast, attach the forestay to the anchor roller and pin the tabernacle. Easy.

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For the details, check out Sam’s design notes below for the Lit’l Coot.

Lit’l Coot 18 Bilge Keel study and construction plans available . It’s also available as  a CNC cut kit .

Lit’l Coot Design Notes

Recently I was working on the plans for a small under 20ft. Pocket Sailor design but found during the process I couldn’t help but think about another design, one roughly the same size and in many respects similar in use, but the type I zeroed in on was a small Motorsailer.  This “Litl Coot” design is the result of my musings and dreams.  Now in this case, despite being my own design customer, I still needed to stay focused and set up a list of design parameters that the new design would accommodate.  First of all she needed to be very trailerable with the capability of sitting on a powerboat type trailer low and compact enough to be able to be backed into a garage or storage shed without any special needs.  So right away that got rid of any notion that I would need to design a deep keel for her.  I flirted with the idea of leeboards but quickly realized that a couple of hardwood Bilge Keels,  along with a centerline small shoe keel and aft skeg, would be just the ticket. The bilge keels also had the additional benefit that they would allow her to beach out level and upright if I got caught by a quickly receding tide in some of the shallow and very tidal bays that I was dreaming of using her on.  If you are a fan of classic literature, there is an excellent novel written just before World War One titled “Riddle of the Sands”.  The story is based near the Friesian Islands located off the N.W. shore of Holland and Germany.  These waters are a very tidal area and the descriptions of the main character straying off the dredged and poorly marked channels and getting caught on the sands in his shoal draft boat with all the extra adventures that one would have with that scenario, has always been appealing to me.  Anyway, it’s a great read. As I recollect, this is either one of the first or the very first Mystery Adventure novels written by Erskine Childers and it has had a prominent position in my library for many years.

But back to the “Litl Coot” design – once I had made the decision to give her bilge keels, that meant all her ballast needed to be in the bilge and my plan is to use recycled lead shot (I buy mine from one of the local trap and skeet shooting ranges) which is very nice to work with, all cleaned, in small canvas bags weighing 30 lbs. each and ready to be mixed with epoxy and set into her bilge.  I usually plan on casting about 75-85% of the anticipated ballast (in this case 600 lbs) before launching and then finish off the final ballasting after checking her trim in the water and re-assuring myself that the weight is located where it is most needed to keep her floating level and on her lines.  That reminds me of a story, several years ago my long-term landlord at my main shop (which I have rented for 28 years now) told me one day just after we had launched a new boat, that one of the things that amazed him most of all about my designing and building boats was how accurately I could predict the floating of the boat level and on her lines.  Well that was quite a compliment and I think that if I remember properly that I tried to pass it off as not being that hard to do! Within just a couple of weeks we had occasion to launch another new build (different design, one that we hadn’t built before) and the new vessel floated down on her lines by the stern. We had to add some (actually read quite a lot of) extra chain in her anchor locker to get her settled down on her lines (as designed). I often wondered if my landlord had somehow jinxed me by saying that they all floated on their lines so nicely, and having missed the mark on the very next boat project, the whole experience sobered me considerably.   It should go without saying that on the next design I spent almost twice as much time as I usually did on the weight study trying to not make the same mistake twice.

But back to our musings about the “Litl Coot” – now that we’ve got the keels on her and the ballast settled, it’s time to think about that engine package.  This is a pure 50/50 Motorsailer and on this size boat, I think the little 9.9 horsepower Yamaha 4 cycle engine in hi-thrust configuration is just about ideal.  It’s a great little engine, barely sips fuel, is almost soundless at idle and will work on this design very well.  But here I was confronted with a problem. With many small sailboats, if we make a centerline rudder and hang the outboard on some sort of scissoring bracket to one side of the stern, when sailing on the tack where the outboard is to the lee side, you will find the end of the lower unit of the outboard dragging in the water.  There might be a couple of solutions to this problem, we could move the outboard closer to the centerline, but if we are not really careful then there is a really good chance that sooner or later you will hit the prop with the rudder while doing some short maneuvering in a docking or mooring situation.  If you place the engine further away from the rudder you’ve exaggerated the problem of the drag of the lower unit and prop of the outboard (and I hate dragging something like that when trying to sail).  So my solution for the “Litl Coot” was to place the motor on the centerline of the transom, and by using a long shaft outboard we will be able to keep the lower unit from dragging on the lee side tack (as there is no lee side to a centerline mounted engine) and both the motoring and the sailing will be without compromise.  Now with the engine on the centerline that meant in order to be able to steer her under sail, I needed to find a way to either mount a rudder off the centerline or an even better solution was to use twin rudders that have tillers that tie together into a common link arm. The additional benefit of the twin rudders allowed them to not extend into the water quite as deeply as if I had used just a single rudder and conforms rather nicely with our requirement of being able to sit level and upright in grounding situations without any necessity to lift the rudders up or have some sort of swing blades on them.  Once we joined the two tillers together into a single link arm then my next problem of how to allow an inside steering station to be rigged was easily assisted by having one common link with simple shackles made up to fixed lines (when desiring the inside steering station) and led through turning blocks to a fore and aft pivoting vertical tiller that will be fixed in the pilothouse on the starboard side. If I desire to steer from this inside station, I can sit in a comfortable seat on the starboard side facing forward and steer her by either pushing or pulling on the tiller. There is enough drag in this type of steering system to keep the helm steady for short periods of time if I needed to have her self steering while fixing a spot of tea or perhaps making a snack.

One of the main ideas with this design is that all functions could be done while sailing, or motoring, solo. There is room to take a buddy along but you don’t necessarily have to, in fact there might be a lot of days when just my dog “Bella” might be the perfect crew for an adventure on the “Litl Coot”.  So all the halyards, topping lifts, etc. are lead aft to the sides of the pilothouse. With her little mizzen sail set up and left rigged most of the time either under sail or under power, she will have the wonderful capability to have a balanced helm under different wind and tacking conditions, and the mizzen would help to keep her steady on a mooring, or at anchor when holed up for a rest.

For easy and quick set up when launching from trailer I designed a tabernacle hinged Mainmast setting a rig that I would call a Cat Yawl (although under some definitions this might also be described as a Cat Ketch, the mizzen being stepped ahead of the rudders) configuration.  This style of rig keeps the sail area where it is needed for balance under sail and is a very simple to use, with literally no re-sheeting necessary as one tacks from board to board.  With the process of rigging the Mainmast simply being a matter of rotating up the mast in its tabernacle, set up the forestay on the bail above the Stainless Steel anchor roller up on the bow, and insert a pin into the bottom of the tabernacle and you are ready to launch.  Keeping the mast up in the eyes of the boat also allowed me to have a top hinged window on the front of the pilothouse for sailing or motoring on warm days.  This allows lots of wind in the face but reduces the chance of getting too much sun on my already overly exposed face, if I choose to be inside in the shade of the pilothouse.

So we now have a boat that can sit on a trailer, fit in a normal sized garage for berthage when we aren’t using her, an inside and outside steering arrangement, a couple of berths for doing some simple cruise/camping, and one that will sail or motor at a fairly efficient level whether the wind is blowing or not.  And did I add that she is towable behind most of the small-to-mid sized SUVss or Pickups? She also is a boat that will allow me to explore the really shallow and fringe cruising areas that more conventional sailboats with their deep keels can’t even think about sailing in.  I can sail her either on my own or with crew, but again all systems and setup can be done on my own if that is the way I choose to use her.  In final expression I have found the “Litl Coot” to be absolutely beguiling during her design stages and my armchair cruises have been wonderful, built around her platform.  My best guess is that her real life adventures might be just as good or better, and that adds a lot of spice to my life, just the ticket for a modern, busy world!

Amateur plans are $195 and consist of 16 drawings printed on 24X36 inch paper and a simple building booklet. You can either buy printed sets of plans directly from us or buy a download version and print on your own. We are now producing basic hull kits for her or we could build you the whole boat if you would like, and very soon I look forward to seeing many of these little Cat Yawls on the water. — Sam Devlin

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Boat rides & cruises in moscow.

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IMAGES

  1. Snapdragon 29 Bilge keel Yacht Renovation By Matt

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  2. Best bilge keel yachts and twin keel yachts for drying out ashore

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  3. Best bilge keel yachts and twin keel yachts for drying out ashore

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  4. Choosing a Blue Water Yacht

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  5. 8 of the best bilge-keel sailing yachts

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  6. Best bilge keel yachts and twin keel yachts for drying out ashore

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COMMENTS

  1. 8 of the best bilge-keel sailing yachts

    GT35. Since the heyday of bilge-keel boatbuilding in the 1970s and 1980s new boats have, on average, become larger. At the same time design has continued to progress, with the result that the bilge-keel version of the GT35, a new British built high-quality cruiser, is likely to be one of the fastest twin-keel boats you'll ever come across.

  2. Why twin keels are making a comeback

    Some fin keel and lift keel boats will have drying-out legs. Bilge keelers with reasonably long keels fore and aft will be stable enough fore and aft with no additional gear, but more modern twin-keelers often aim to create a tripod, between keels and a weight-bearing rudder or an additional leg. The Django 770 has an adjustable transom leg.

  3. Best bilge keel yachts and twin keel yachts for drying out ashore

    So Laurent Giles's move to a modest 2° toe-in for maximum efficiency combined with symmetrical foils was the right way to go. The result was a marked improvement in windward performance over older bilge or twin keel yachts. And if they had gone for slightly more draught than 3ft, it would have been even better.

  4. 13 Most Popular Bilge Keel Sailboats Worth Considering

    The 13 most popular bilge keel sailboats that are worth considering are the following: Snapdragon 747, Snapdragon 890, Snapdragon 600, Achilles 24, Westerly Centaur, Westerly Griffon, Westerly Pageant, Sadler 32, Moody 33, Westerly Konsort, Moody 346, Hunter Horizon 26, and Fisher 25. The Westerly Konsort is a bilge keel sailboat that is known ...

  5. Pros and Cons of the Bilge Keel (5 Surprising Benefits)

    The bilge keel allows you to park your boat on tidal beaches. It can stand upright when onshore for maintenance, making it easier to maintain. It has a lower draft resulting in better accessibility of shallow areas. It also reduces roll, resulting in more comfort on board.

  6. GT325: launch preview from British boatyard

    The GT325 is the first yacht in years from the British builders GT Yachts. David Harding gets a preview ahead of the cruiser's launch. Back in 2014, GT Yachts launched the GT35 - a fast, roomy and powerful cruiser designed by Stephen Jones. It was very well received but, for GT Yachts, the costs and complexities involved in outsourcing ...

  7. Bilge Keel Hulls: Combining Stability and Shallow Draft

    Discover the benefits of bilge keel hulls for yachting enthusiasts who want both stability and the ability to navigate shallow waters. This article explains how bilge keels offer a unique solution for boats, providing steadiness at sea and access to areas where deeper drafts can't go. Learn about the considerations when choosing a yacht with bilge keels, including their impact on ...

  8. 5 great lifting keel cruising yachts

    The Southerly 42 RST offers 2.72 metres' draught with the keel down enabling plenty of sail area and good overall performance. A step change came at the end of the 1990s, with introduction of the Rob Humphreys designed Southerly 110. This had a softer, more rounded pilot house design, but the most important changes were below the waterline.

  9. Choosing a yacht: bilge keels vs fin keels

    One of the first yachts to be tank tested, long before computer design tools enabled designers gain a better understanding of their products, was the Macwester 27 in the early 1970s. As a result the new boat gained much deeper keels, with draught increasing from the 0.75m of the earlier Macwester 26 to 1.2m - a 60 per cent increase.

  10. Sailboat Keel Types: Illustrated Guide (Bilge, Fin, Full)

    The most common sailboat keel types are full-length keels, fin keels, bulb keels, wing keels, bilge keels, and lifting keels. Full keels are popular among cruisers, while fin keels are generally used for racing. Bilge keels and lifting keels are typically used in tidal waters, on small fishing boats for example.

  11. Lit'l Coot 18 Full Keel

    Devlin Boats, Sailboats. The Lit'l Coot 18 Full Keel is a is seaworthy and capable motorsailor with enough space on board for the organized sailor and enough potential to keep serious travelers satisfied. She is the sister to the original Lit'l Coot with the same hull and the same tendency for balanced performance and maximal use of space ...

  12. Bilge Keel Vs Fin Keel: Which is Better?

    A bilge keel is basically a double keel with double fins that allow the boat to be beached and stand upright on its keel. Bilge keels provide twice the wetted surface, increasing comfort, and directional stability while lowering heel height. Due to improved design, modern bilge keels frequently give an adequate windward performance. When ...

  13. How keel type affects performance

    How keel type affects performance. James Jermain has tested hundreds of yachts in his 30 years as Yachting Monthly's chief boat tester. The performance and handling of a yacht depends on many things, but perhaps the most important single feature is the shape of the hull and the profile of the keel. Over the years hulls have become shallower ...

  14. Twin keel

    Twin keel. An English-made Hurley twin-keeled sailboat at low tide. Twin keels or bilge keels are two keels that emerge at an angle from the hull of a sailboat (and some ships), at or near the bilge. The angle allows the boat to have a shallower draft while still allowing for minimum leeway while sailing. The placement of the twin keels also ...

  15. 6 great sailing boats for creek crawling

    You can still get new bilge keel boats like the Legend 36. Hunter Legend 36 Most bilge keel yachts were built before the mid 1990s, but one manufacturer, Legend Yachts, has continued to offer them thanks to a continuing demand from those who are looking for a larger or newer twin keel boat. The Legend 36 is a development of the earlier 356 ...

  16. Bilge Keels

    George Buehler Yacht Design Custom & Production Yacht Design PO Box 966 Freeland, Washington 98249 (360) 331-5866 [email protected]

  17. Are Bilge Keels Good For Ocean Crossings?

    Bilge keel boats are able to dry out easily and are more stable during ocean crossings. Some sailors have positive experiences with bilge keelers on long-haul voyages and praise their simplicity of design. On the other hand, skeptics mention bilge keelers not handling knockdowns well or questioning their overall seaworthiness.

  18. Radisson Flotilla

    Moscow is an oasis of green spaces. The city has more than 140 natural areas. According to World Atlas, 54 percent of Moscow's area are covered by public parks and gardens, so Moscow was ranked number one among the greenest cities in the world. The Flotilla consists of seven river yachts sailing along the Moskva River with designer ...

  19. Check out Moscow's NEW electric river trams (PHOTOS)

    On July 15, 2021, on the dock of Moscow's 'Zaryadye' park, mayor Sergey Sobyanin was shown the first model of the upcoming river cruise boat. The model of the electrical boat with panoramic ...

  20. River Cruise on Luxurious Radisson Boat

    Moscow City: View Moscow Beneath Your Feet. $96. Details. River Cruise on Luxurios Radisson Ship with a guided excursion: time to relax and soak in the gorgeous Moscow landscape. Our guide will accompany you and reveal the details behind the structures on the river banks around you.

  21. 13 Popular Full Keel Sailboats Worth Considering

    Here are 13 good full keel sailboats that are worth considering: Nicholson 32. Island Packet 380. Folkboat 25. Cape Dory 36. Vancouver 32. Freya 39. Wylo 2. Tradewind 33.

  22. Lit'l Coot 18 Bilge Keel

    The tabernacle hinged mast makes rigging at the boat launch a breeze. Simply raise the mast, attach the forestay to the anchor roller and pin the tabernacle. Easy. For the details, check out Sam's design notes below for the Lit'l Coot. Lit'l Coot 18 Bilge Keel study and construction plans available. It's also available as a CNC cut kit.

  23. THE 10 BEST Moscow Boat Rides & Cruises (Updated 2024)

    Explore the scenic and historic attractions of Moscow from the water with the best boat tours and cruises. Enjoy the views of the Kremlin, the Cathedral of Christ the Savior, and the Sparrow Hills on a relaxing or informative boat ride. Or, spice up your trip with some water sports and activities in Moscow. Find out more on Tripadvisor.