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420 Sailboat: An In-depth Analysis

The 420 sailboat, a classic in the sailing world, is known for its versatility and performance. Loved by both beginners and seasoned sailors alike, this craft offers a unique sailing experience. In this comprehensive review, we will delve into its features, functionality, and overall value.

The History of the 420 Sailboat

The 420 sailboat has been a staple in the boating community since its creation in 1959. Designed by Christian Maury, this French-made dinghy has gained a reputation for being a top choice for youth training, high school and collegiate sailing, and even for competitive events. Over the decades, it has proven its worth and stood the test of time, making it a much-loved choice for many sailors.

Design and Construction

When it comes to design and construction, the 420 sailboat is nothing short of impressive. Its 4.2 meters of length coupled with a light hull weight of around 80 kg allows for easier transportation and storage. The boat's construction materials have evolved over time, with modern versions often featuring a durable fiberglass hull and an aluminum mast.

Sails and Rigging

The 420's sailplan consists of a mainsail, a jib, and a spinnaker. This configuration offers a balanced performance in various wind conditions, allowing sailors to efficiently manage and adjust sails as necessary.

Performance on Water

The 420 sailboat's performance is noteworthy, as it strikes a perfect balance between speed, stability, and maneuverability. Its responsiveness, combined with the simplicity of its handling, makes it an ideal boat for a wide range of skill levels.

Handling and Maneuverability

The 420's handling and maneuverability is where this vessel truly shines. Its lightweight design and efficient hull shape allow for quick tacking and gybing, while the adjustable rigging system enables sailors to modify the boat's performance according to changing conditions.

Comfort and Safety

Although primarily designed for competitive sailing, the 420 sailboat doesn't compromise on comfort and safety. The cockpit is spacious enough to accommodate two people comfortably, while the hull's robust construction and the boat's inherent stability offer peace of mind to the crew on board.

The 420 sailboat is truly a gem in the sailing world. With its enduring design, commendable performance, and solid build, it promises an enjoyable sailing experience. Whether you're a beginner looking for a reliable boat to learn on, or an experienced sailor seeking a versatile craft for competitive racing, the 420 sailboat certainly warrants consideration.

Price and Value

When it comes to value for money, the 420 sailboat stands tall among its competitors. While the initial investment may seem significant, its longevity, performance capabilities, and the enduring demand in the second-hand market make it a worthwhile investment for the serious sailor.

Initial Cost

The price of a new 420 sailboat can vary significantly depending on the manufacturer, equipment included, and the specific model. As of 2023, you can expect to pay anywhere between $8,000 to $12,000 for a new 420 sailboat.

Maintenance and Operating Costs

The 420 sailboat's maintenance costs are relatively low compared to other similar vessels. Due to its robust construction and simple design, regular cleaning and occasional rigging adjustments are generally all that's needed to keep a 420 in top shape. Additionally, being a small sailing dinghy, it doesn't incur mooring fees and its transportation costs are minimal.

Resale Value

One of the standout aspects of the 420 sailboat is its strong resale value. Given its popularity in sailing schools and racing events, there is always demand in the second-hand market. Well-maintained boats often retain a significant percentage of their original value, making the 420 a financially sound choice.

Final Thoughts

The 420 sailboat is a true classic that continues to hold its own in the contemporary sailing world. With its perfect balance of performance, durability, and value, it offers a versatile sailing solution for enthusiasts of all skill levels.

In conclusion, the 420 sailboat ticks all the right boxes for both recreational and competitive sailing. From its clever design and excellent performance to its safety features and overall value, it offers everything a sailor could ask for. For those in the market for a reliable, efficient, and enjoyable sailing vessel, the 420 sailboat is indeed a worthy contender.

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Junior to Collegiate Level double-handed sailing boat . Safe for beginners and quick enough to keep collegiate sailors interested, the Club 420 provides the most double handed racing of any boat in the world. The C420 enables young sailors to learn teamwork, trapeze, and spinnaker techniques that can’t be learned from a single-handed boat.

Sailing institutions are using the C420 to develop team racing and fleet racing events that are keeping young sailors excited while building participation in junior programs.

The racing and learning continue to improve as more clubs standardize to the Club 420 and participation grows at every level.

• The class maintains an active membership of over 800 sailors and is growing rapidly
• It forms the basis of many junior sailing programs
• It is the basis of over 470 high school sailing programs (ISSA)

79.65 ft 2 7.40 m 2

95 ft 2 8.83 m 2

5.50 FT 1.68 M

2.95 FT 0.90 M

13.90 FT 4.24 M

Club -> National

Beginner -> Advanced

230 LB 104.33 KG

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Zim Sailing's Club 420 has quickly become the go-to C420, regardless of whether you're winning the Triple Crown circuit or just teaching learn-to-sail at the local sailing club. One-design sailors want the strongest, lightest, most durable boats and rigging available. We’ve met this demand with proven boat construction techniques and a rigging system that ensures performance, strength, and durability. This durability has led to many happy repeat customers, and has made Zim Sailing the leading provider of Club 420s in the world. Available in Club, Race, and Pro specifications. 

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Accelerate skill development in a boat that delivers an edge.

A Mackay 420 has been behind nearly every world champion success since we commenced building 420’s in 2012.

Specifications

Hull Length                            4.2 m

Beam Length                        1.63 m

Mainsail Area                       7.4 m2

Headsail Area                       2.8 m2

Spinnaker Area                    9.0 m2

Boat Weight                          100 kg

Hull Weight                           80 kg

Hull Material                         GRP

No. of Crew                           2

Opt Crew Weight                 110 - 145 kg

Number of Trapeze             Single

Designer                                 Christian Maury

420 Class Association website:  http://www.420sailing.org/

The 420 is one of the best options to learn the ropes about two-person dinghy sailing. Crews learn how to tune a boat, set up control systems, trim sail combinations (jib, main and spinnaker together), work on downwind and upwind techniques, and importantly, learn how to work with another crew.

The Class has attracted many top sailors to it, providing a learning platform that has led them into successful Olympic campaigns and big boat careers.  

The 420’s design and class rules gave us the opportunity to build a boat similar to how the Mackay 470 is built in terms of the mould structure and look of the boat. 

The Mackay 420 hull shape was developed by naval architect Kevin Trotter. Kevin has designed very fast dinghies here in New Zealand over the years. Using the latest design and analysis software, along with the luxury of time we were able to evaluate the expected performance along with the look of the boat. 

Looking at where crews tended to sit in the boat in different conditions affected where we pushed the displacement curve of the boat.   Additionally, Kevin's skiff designs gave valuable insight into the way the rocker curve and buttocks lines should run through the middle and aft sections.

The hull is made from a polyester e-glass fibre, using foam core ribs and core mat panels.

The Mackay 420 deck to hull joint system is the same as our 470s, which allows for the same exceptionally strong but light gunwale arrangement. This extends around the bow and across the transom.

We have also borrowed some other features off the 470.  As an example, the way the mast partner is fitted to the deck after the boat is built allows the bulkhead in front of the mast to be more vertical and closer to the mast.  This is better for rig tension and weight distribution.  It also improves the look of the boat giving it a longer foredeck. 

The rudder stock is in cast aluminum which provides excellent support. The foils are built in the same way as our 470 foils by resin infusion.  

Most importantly the time and energy we put into the rudder and centreboard design along with the finishing of the moulds has resulted in some very special foils.

420: Our recent successes

420 Mackay Boats History

How to do a gelcoat repair.

Small gel coat repairs are relatively easy to do. 

What is Gelcoat made up of?

Gelcoat is a polyester product that is cured by using a catalyst called MEKP. (Methyl Ethyl Ketone Peroxide)

MEKP is a dangerous substance and should be treated as such when using, being very careful not to get any on your skin or in your eyes.

How can I get the catalyst - MERK?

We cannot ship MEKP so you will always need to buy it separately from your local marine store or fibreglass manufacturer.

How much MERK do I need?

The amount of Catalyst varies depending on the conditions you are using it in, but around 2%-3% will always work.

It is best to use a small syringe or dropper to get the required catalyst rate.

If you have mixed 100gm of gelcoat, then you are aiming for 2ml of catalyst.

What are the Gelcoat colours?

Gelcoats colours are not always a 100% perfect match.

Colour will vary depending on the depth of the repair and the batch.

470, 420, 29er & Starling are built from polyester resin.

For Polyester boats

470  White-  LS30    White PA 337

470  Grey- Grey RAL 7035

Blue = is supplier by Nuplex who have their own code which is not an international code

Does Mackay Boats supply gelcoat?

We supply a small tin (of each relevant colour) with each new boat.

Order additional gelcoat from our store, although it cannot be shipped by courier.

How do I do gelcoat repairs?

Doing gelcoat repairs is an art that improves with experience.

Making sure the surface is prepared well and keyed up is critical.

Overfill and then sanding back is a slow and time-consuming process.

Be very careful not to scratch the boat around the repair.

You shouldn’t sand the original surface around the repair with any paper coarser than 600grit.

Mask around the repair to protect the boat.

You can initially use a file or 150g to take the high parts off the filling, but don't use the coarse paper for too long or you will end up with scratches in the finished repair.

Once you have it fair with 600g, you can work your way through the sandpaper grades until you finish with 1500grit before cutting and polishing.

We would typically use 600g, then 800g or 1000g, then 1200g, then finally 1500g.

What can be customised?

Deck colour and non-skid on the side-decks. You can find these options if you try the boat configurator on our website.

What colour options do you offer?

White, Light Grey, Light Blue, Light Green, and Cream. On the 420, Grey is the most popular, with Blue and White equal second most popular.

How do you fit a mylar gasket the hull?

 Please watch this short video that demonstrates fitting a mylar gasket to the 420 hull - 

>> Fitting a mylar gasket .

420 Tuning Tips

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• 420 Sailboats: Exploring the Thrill of Dinghy Sailing

Sailing has been an adventurous and captivating water activity enjoyed by enthusiasts around the world for centuries. Among the various sailing boats, the 420 sailboat stands out as a popular choice for dinghy sailing. In this article, we will delve into the exciting world of 420 sailboats, understand what makes them unique, explore different sailing dinghy types, and discover the thrill of dinghy cruising. So, hoist the sails and let's embark on this thrilling journey!

What are 420 Sailboats?

1.1 the origins of the 420 sailboat.

The 420 sailboat originated in France in the late 1950s as a two-person dinghy designed for competitive racing. Its design was based on the popularity of the larger 470 sailboat and was intended to create a more accessible racing boat for young sailors.

1.2 Design and Characteristics

The 420 sailboat typically measures around 4.2 meters (13 feet 9 inches) in length, featuring a single trapeze, a mainsail, and a jib. The boat's hull is often made of fiberglass, ensuring durability and performance on the water.

1.3 Sailing Community and Competitions

Over the years, the 420 sailboat has garnered a strong global following, becoming one of the most popular dinghies for youth and amateur sailors. The boat's versatility allows both beginners and experienced sailors to enjoy thrilling competitions and hone their skills.

The Fascination of Dinghy Sailing

2.1 understanding dinghy sailing.

Dinghy sailing involves sailing small boats, often single-handedly or with a crew of one or two. It offers a more intimate connection with the water, providing sailors with an immersive experience of being one with the elements.

2.2 Advantages of Dinghy Sailing

Dinghy sailing offers several advantages, such as affordability, portability, and maneuverability. Sailors can easily transport and launch dinghies, allowing them to explore various water bodies and remote sailing destinations.

2.3 Challenges and Skills Required

While dinghy sailing is exhilarating, it requires a certain level of skill and adaptability. Sailors must learn to handle the boat in changing weather conditions and use their body weight to maintain stability.

Exploring Dinghy Cruising

3.1 escaping to serene waters.

Dinghy cruising offers a unique opportunity to explore secluded coves, tranquil lakes, and winding rivers. Sailors can escape the bustling city life and immerse themselves in the serenity of nature.

3.2 Navigating the Seas with Confidence

Before embarking on a dinghy cruise, sailors must acquaint themselves with navigation skills, weather patterns, and safety procedures. Proper planning and preparation are essential for a safe and enjoyable journey.

3.3 Preparing for a Dinghy Cruise

Preparing for a dinghy cruise involves packing essential supplies, inspecting the boat's condition, and ensuring all safety equipment is onboard. Additionally, sailors should inform someone about their sailing plans for added security.

Different Types of Sailing Dinghies

4.1 traditional sailing dinghies.

Traditional sailing dinghies often have classic designs and are cherished for their historical significance. They offer a nostalgic sailing experience, appealing to enthusiasts looking to reconnect with the past.

4.2 Modern Performance Dinghies

Modern performance dinghies, like the 420 sailboat, are designed for optimal speed and maneuverability. They are favored by competitive sailors and those seeking an adrenaline-fueled sailing experience.

4.3 Choosing the Right Dinghy for You

When selecting a sailing dinghy, consider your sailing goals, experience level, and preferred type of sailing. Consulting with experienced sailors or boat dealers can help you make an informed decision.

Unraveling the Mystery of Dinghies

5.1 defining a dinghy.

A dinghy is a small boat, often with a shallow draft, suitable for short trips near the shore or larger vessels. Dinghies serve various purposes, such as transportation between a yacht and the shore.

5.2 Brief History of Dinghies

Dinghies have a rich history, dating back to ancient times when they were used as lifeboats and for short excursions from larger ships. Their design and purpose have evolved over centuries.

5.3 The Role of Dinghies Today

In the modern era, dinghies continue to play a crucial role in recreational sailing, racing events, and as safety boats for larger vessels. Their versatility and ease of handling make them an essential part of the sailing community.

Read our top notch articles on topics such as sailing, sailing tips and destinations in our Magazine .

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The versatility of the 420 sailboat, 6.1 thrilling racing experience.

The 420 sailboat offers an exhilarating racing experience, with its responsive design and competitive class association events worldwide. Sailing enthusiasts can participate in friendly regattas or challenging competitions.

6.2 Casual Sailing and Cruising

Beyond racing, the 420 sailboat is equally enjoyable for leisurely sailing and cruising. Its stable and forgiving nature makes it suitable for novices, families, and friends seeking quality time on the water.

6.3 Ideal for Novices and Experts Alike

The 420 sailboat strikes a perfect balance between beginner-friendly features and high-performance capabilities. Novice sailors can develop their skills with ease, while experienced sailors can explore advanced techniques.

420 Sailboat vs. Flying Junior Sailboat

7.1 a closer look at flying junior sailboat.

The Flying Junior (FJ) sailboat is another popular double-handed dinghy known for its competitive racing and sailing programs in schools and clubs worldwide.

7.2 Key Differences and Similarities

While the 420 sailboat and Flying Junior share similarities in terms of size and purpose, they have distinct design elements, which affect their handling and performance.

7.3 Choosing Between the Two

Choosing between the 420 sailboat and Flying Junior depends on individual preferences, training programs available, and desired sailing experience. Both boats offer thrilling adventures for sailors of all ages.

Yacht vs. Boat: Understanding the Distinction

8.1 what defines a yacht.

A yacht is a larger and more luxurious vessel, often used for recreational purposes, cruising, and leisure activities. Yachts are known for their opulence, amenities, and long-range capabilities.

8.2 How is a Boat Different?

Boats, including sailing dinghies like the 420, refer to smaller watercraft used for various purposes, such as sailing, fishing, transportation, and sports.

8.3 Determining the Right Vessel for Your Needs

Selecting between a yacht and a boat depends on factors such as budget, desired activities, number of passengers, and the kind of sailing experience you wish to have.

The Thrill of 420 Sailing Competitions

9.1 the competitive spirit.

420 sailing competitions are known for their competitive spirit and camaraderie among sailors. Participants challenge their skills and tactics to outperform their rivals.

9.2 International 420 Class Association (ICA)

The International 420 Class Association (ICA) is the governing body that organizes and regulates 420 sailing events worldwide, fostering a vibrant and inclusive sailing community.

9.3 Notable 420 Sailing Events

From local regattas to prestigious international championships, 420 sailors have the opportunity to participate in a wide range of events that cater to different skill levels and age groups.

Owning a 420 Sailboat: A Dream Come True

10.1 factors to consider before purchasing.

If you're considering owning a 420 sailboat, factors like budget, boat condition, and available storage space should be carefully evaluated to make the right investment.

10.2 Maintaining Your 420 Sailboat

Proper maintenance is essential for keeping your 420 sailboat in top-notch condition. Regular inspections, cleaning, and timely repairs contribute to its longevity and performance.

10.3 Cherishing the Sailing Memories

Owning a 420 sailboat is not just about the vessel itself but the unforgettable memories created on the water. Cherish the moments spent sailing, racing, and exploring new horizons.

420 sailboats have captivated sailors worldwide, offering a versatile and thrilling sailing experience. From competitive racing to leisurely cruising, the 420 sailboat has proven its mettle as a reliable and exciting dinghy. Whether you're an experienced sailor seeking a new challenge or a novice eager to learn the ropes, the 420 sailboat is ready to take you on a memorable adventure on the open waters.

So what are you waiting for? Take a look at our range of charter boats and head to some of our favourite  sailing destinations.

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• Sailboat Guide

420 is a 13 ′ 9 ″ / 4.2 m monohull sailboat designed by Christian Maury and built by Fountaine Pajot, Rondar Raceboats, MacKay Boats Ltd., Lanaverre, Xtreme Sailing Products, Snapir Sailing Craft Ltd., Nautivela, Far East Boat Co., Johnson Boat Works, and Whitecap Composites starting in 1959.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

One of the most successful sailing dinghies ever. (Only the SUNFISH or LASER can be considered in the same league.) Originally designed and built by Lanaverre of France. (They built 32,000 according to one source.) Licenses were later granted to other builders around the world. In 1996, the International Class agreed to amend the deck layout. 1 Trapeze permitted. Spinnaker: 97 sq.ft. There is a ‘Club’ version of heavier construction and slightly different dimensions.

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International 420 Class Association

Class contact information.

Click below

Class Email

Class Website

One-Design Class Type: Dinghy

Was this boat built to be sailed by youth or adults? Youth

Approximately how many class members do you have? 150 in the US.

Photo Credit:Michael Rudnick

Photo Credit: Michael Rudnick

About International 420 Class Association

The US International 420 Class Association is dedicated to the support, development and growth of International 420 Class sailors in the United The International 420 is an established performance two-person trapeze and spinnaker racing dinghy. The I420 is a youth development boat in 43 countries and is the boat used for the two-person boys dinghy, and two-person girls dinghy events at the Youth Sailing World Championships, the pinnacle youth sailing event in the world. In the US the boat is used in the US Sailing Youth Championship, the pinnacle youth sailing event in the US. The I420 is sailed at yacht clubs, open, national and international levels. There are many second hand boats available, and active fleets across the United States. The 2018 World Championship was held in Newport, RI with 500 sailors from over 25 counties attending.

Designed by Christian Maury in France in 1960, the I420 celebrated its 60th Anniversary in 2020. The I420 is recognized by World Sailing as an “World Sailing Learn to Sail Training Program Recommended Boat”, which endorses its use by Member National Authorities for developing and teaching sailing. All boats recognised by World Sailing have been independently assessed by World Sailing to be ideal for developing and/or teaching sailing within the World Sailing Learn to Sail programme. The class is managed at a global level by the International 420 Class Association, and by the local class association in each country. In the US that is the US I420 Class Association.

Boats Produced: 26,000

Class boat builder(s):

Full list at: http://www.420sailing.org/content/420-licensed-builders

Approximately how many boats are in the USA/North America? 150

Where is your One-Design class typically sailed in the USA? List regions of the country:

New England (Newport, CT, NYC, NJ), Annapolis, Miami, Houston, San Francisco & Southern Califorina.

Does this class have a spinnaker or gennaker? Yes

How many people sail as a crew including the helm?  2

Ideal combined weight of range of crew:  250 – 325 lbs

Boat Designed in  1960

Length (feet/inches): 13′ 9″

Beam: 5′ 4″

Weight of rigged boat without sails: 100 kg/220 lbs (80kg/176 lbs Bare Hull)

Mast Height: 20′ 6″

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Information

Characteristics.

The 420 is the most popular double-dinghy in the world. Designed in 1961, about 60,000 boats have been built in all these years. In Spain, the class is at a great moment. The Cup and Championship of Spain hover around 100 participants each year, there are regattas with lots of participation in all the communities and titles and international recognition is constant.

Lenam Vela Ligera, licensed for manufacture since 1998 has contributed with more than 1300 boats to the 420 class. At Lenam we make a 420 without haste, with passion. The whole process is studied in detail.

The 420 has a strict regulation regarding the materials to be used in its manufacture. Only polyester resin is allowed, while Sandwich-type construction, which is allowed on Optimist, Europa, Snipe…, is forbidden. From these premises, the quality of the raw materials used in the construction of the 420 Lenam is maximum. The NPG isophthalic gelcoat and the isophthalic polyester resin, both with the highest H.D.T (temperature at which the gelcoat and resin can degrade), allow an elongation and elasticity of the laminated materials unequalled, enduring the harshest sailing conditions and suffering less with collisions than other boats.

The glass fibre used is the mat with powder binder, which avoids osmosis problems and offers better chemical resistance properties than other fibres of lower cost.

These materials are much more expensive than other permitted materials, but they ensure an unsurpassed quality of finish and a longer life and competitiveness of the boat over time.

It has already been mentioned mentioned that solutions to give rigidity to the hull or sandwich-type deck with P.V.C. foam are not allowed in 420. What is allowed to give consistency to the hull and deck are omega-type reinforcements to be placed according to the criteria of the shipyard. And it is at this point where the 420 Lenam has an important number of original reinforcements, which perfectly combine its minimum weight and maximum rigidity. In addition, the 420 in general for its special shape with a bulky bow, must take special care to make it light in that area, which Lenam achieves with a particular design of omegas in bow, very light and consistent, which at the same time allow it to provide the hull with a center of gravity more backward than its competitors, a fundamental aspect in short wave conditions or with weighty crews.

Once the hull and deck have been laminated, they remain in the mould for a minimum of one week, in a post-curing process at a constant temperature, in order to achieve the necessary degree of rigidity and curing that will provide the definitive dinghy with a long life at full performance.

And if the materials to be used are very limited, as we have commented in the 420 rules, on the other hand the water lines of the class allow tolerances that give a lot of game. Lenam gives a very versatile response to all wind and wave conditions. The wave conditions can be very different depending on where you are sailing. For instance, the typicall Mediterranean wave, characterized for being short, is different than the waves you can find in the Atlantic. Because of the knowledge provided by sailors and monitors, the water lines of the Lenam give a very easy navigation and maximum speed in these so diverse conditions.

The position and draft of the centreboard and rudder have also been studied to optimise navigation.

The design of the deck, the only one of all the shipyards manufacturing the 420 that is in one piece, contributes to the perfect alignment of the key elements in this section, such as stay chain, bonfire, cockpit, centreboard box and rudder hardware.

The boat is presented with the best hardware and accessories, with the cockpit as “clean” and tidy as possible. Details such as the padded belts with no water absorption, the neoprene anti-slip system for the crew, the spi bags made of water- and sun-repellent fabric… everything to give the sailor the peace of mind of knowing that he is sailing in a boat in which everything is designed to give maximum speed and comfort to the 420!

Elias Aretz, together with Pablo Garcia, runners-up of the world and Spain 2018

“We have been fortunate to be part of the Lenam team in recent years, getting material that has allowed us to fight at the highest level in this class. It’s a boat that adapts very well to all conditions. The quality of the materials used and the personal dedication behind each boat manufactured, is noticeable in the finish and over time. Added to this is the constant research always looking for the most innovative technologies of the moment to continue being one of the most competitive boats on the market”.

Wichy Hernandez, together with Nacho Balaguer, champions of Spain and fourth  of the world 2018

“I have had a long ride in the 420 class, about 8 years uninterrupted in active sailing. From 2016 until now I have sailed with Lenam and in the last two years there has been a great evolution to reach the current boat. Manel has managed to make a very competitive boat, you only have to look at the results obtained that endorse it in recent years. Its volume in the bow gives us a boat much more stable than the rest and, in wavy conditions, it gives us a lot of comfort and ease to pass the wave. With low wind conditions it is one of the fastest boats in the market. The new Lenam Race One is harder than its predecessor, the Lenam Gold. The internal construction has been changed and the result is a very fast boat with wind conditions and also it has more durability. Without a doubt, it is the best quality-to-price ratio 420 you can find. We have the best at home!”

New lighter, softer and more aesthetic kicker and main sail cuningham controls.

New control system of the spi sheet with the barber hook to the maximum in front of the chain allowed.

Simple and effective transom window system with “suction” effect.

New padded belts with no water absorption adjustable thanks to the dynema rope

New material in anti-slip neoprene for the crew member. Perfect grip of the foot and soft to the touch that does not tear the water suits.

New transom bead, which provides greater strength and helps to avoid the annoying collisions typical of regatta starts.

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Mike Lynch and daughter among missing after yacht sinks: What we know about disaster - and 'alarming' potential cause

The British-flagged luxury vessel named Bayesian was carrying 22 people when it got into difficulty off the coast of Sicily. Sky News looks at what we know about the tragedy.

News reporter @samuelosborne93

Wednesday 21 August 2024 19:01, UK

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Six bodies have been found after a superyacht sank off the coast of Sicily.

Twenty-two people were on board the vessel named Bayesian when it got into difficulty in the early hours of Monday, with 15 people rescued.

Here's what we know about the sinking of the luxury vessel so far.

Follow latest updates on the superyacht sinking

What might have caused the sinking?

The British-flagged luxury vessel, named the Bayesian, capsized at around 4.30am local time on Monday morning off Palermo, according to ship-tracking site Marine Traffic.

It sank in a matter of minutes with 22 people on board, 12 passengers and a crew of 10, according to the Italian coastguard.

Waterspouts, essentially tornados which form over water, were seen as powerful winds battered the area overnight, local media said.

The yacht may have sunk faster with all the doors open due to the hot weather, Sailing Today magazine editor Sam Jefferson has said.

"I imagine all the doors were open because it was hot, so there were enough hatches and doors open that it filled with water very quickly and sank like that," he said.

Official pictures show air conditioning units in several of the rooms, however, which could counter the suggestion open windows caused the vessel to sink faster.

The huge mast is also likely to have played a role, he added.

What are waterspouts?

Waterspouts typically occur during thunderstorms and can develop very rapidly, within minutes.

Their spin generally reaches wind speeds between 75-200mph, but can reach as high as 300mph.

They can travel at about 10-20mph typically but can reach greater speeds, making them difficult to avoid - especially in something as slow-moving as a yacht.

Matthew Schanck, chair of the Maritime Search and Rescue Council, called the reports of a tornado or waterspout "rare" and "quite alarming".

"The vessel was at anchor in a recognised anchorage," Mr Schanck said.

"Depending on wind direction and the state of the sea, this informs the captain whether it is a safe area to anchor or not. There was nothing that was too concerning, for my eye. All in all, the captain used the information they had to make a safe call."

Who owns the yacht?

British tech tycoon Mike Lynch was among those missing, along with his 18-year-old daughter Hannah. His wife Angela Bacares was rescued.

Mr Lynch, 59, is known as the " British Bill Gates " and has been in the headlines in recent months over a high-profile fraud case.

In June, a US jury cleared him of all charges, which were related to the 2011 sale of his software company Autonomy to Hewlett-Packard (HP). The yacht trip is believed to have been a celebration of the end of Mr Lynch's legal troubles.

HP accused him of deliberately overstating the value of the company before it was acquired by the American tech giant.

Mr Lynch was extradited to the US to face trial in May last year and spent 13 months under house arrest in San Francisco as he awaited trial on 17 charges of conspiracy and wire fraud brought by the US Department of Justice - which were later reduced to 15 charges. He always denied any wrongdoing and was acquitted.

Read more: Lynch's co-defendant dies days before yacht sinking

Who was on board when the boat sank?

The passengers were largely British and American, the Italian coastguard said. Crew members were from New Zealand, South Africa, and Canada.

Charlotte Golunski was among the Britons rescued. Her LinkedIn profile says she is a partner at Mr Lynch's firm Invoke Capital and has worked there since 2012.

Speaking after the ordeal, Ms Golunski told Italian media that she lost her daughter Sofia for "two seconds" amid the "fury" of the sea but was able to retrieve her. She said she held the infant above the waves until the lifeboat was ready.

"Many people screamed. Luckily the lifeboat inflated and 11 of us were able to get on board," she told ANSA.

The girl's father James Emsley also survived, according to Sicily's civil protection agency.

Also on board were Jonathan Bloomer, chairman of investment bank Morgan Stanley, his wife Judy Bloomer, a top US lawyer Chris Morvillo, who worked on Mr Lynch's criminal case, and his wife Neda Morvillo. They were all reported as missing.

The yacht's captain James Calfield survived, along with South African crew members Leah Randall and Katja Chicken.

Recaldo Thomas, a Canadian-Antiguan chef who was working on the boat, has been found dead, the Italian Coastguard has confirmed to Sky News.

During rescue efforts, divers saw "corpses through the portholes" of the wreck as they recovered the body of a man at a depth of 50m (164ft), according to Salvo Cocina, the head of the Civil Protection of Sicily.

What do we know about the vessel?

The Bayesian is owned by a company controlled by the wife of Mr Lynch.

It was known for its unusual 72.3m (246ft) single mast - one of the world's tallest made of aluminium - and shared its name with the statistical method Mr Lynch's Autonomy software was based on.

It was built by Italian company Perini Navi in 2008 and last refitted in 2020.

It was listed for rent for up to €195,000 (£166,000) a week, according to online charter sites.

The luxury vessel , which was managed by yachting company Camper & Nicholsons, can accommodate up to 12 guests in six suites.

It won a string of awards for its design, according to online specialist yacht sites.

Mr Schanck said the vessel would have been equipped with "high standard" life-saving appliances and radio communications. He added the yacht would have met all international standards and UK maritime coastguard agency regulations before its voyage.

Keep up with all the latest news from the UK and around the world by following Sky News

The boat left the Sicilian port of Milazzo on 14 August and was last tracked east of Palermo on Sunday evening, with a navigation status of "at anchor", according to vessel tracking site VesselFinder.

The Bayesian previously travelled to other parts of Sicily before its last sighting off the coast of the port of Porticello.

On Sunday, the boat was seen off the coast of Cefalu before it travelled towards Porticello, MarineTraffic data shows.

In the days before, the yacht travelled around four of the Aeolian islands, just north of Sicily.

It was previously named Salute, or "health" in Italian, when it flew under a Dutch flag. Its minimalist interior featured light wood with Japanese accents designed by the French designer Remi Tessier, according to descriptions on charter sites.

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Prosecutors in the nearby town of Termini Imerese have opened an investigation into the sinking.

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Who is Mike Lynch? UK entrepreneur among those missing after superyacht sinks off Sicily

Mike lynch, a 59-year-old british technology entrepreneur, was among the six missing passengers who were aboard the bayesian, a yacht that sank in sicily, italy..

Six people remain missing after a luxury superyacht sank off the coast of Palermo in Sicily, Italy on Monday, including British technology entrepreneur Mike Lynch.

Lynch, 59, was aboard the Bayesian, an 184-foot-long British-registered sailboat that sank into the water right before sunrise. While six individuals are missing — including American, British and Canadian nationals — one person has been confirmed deceased from the sinking that capsized the yacht's 22 passengers, Italy's coast guard said in a statement.

Of the 15 rescued passengers, eight were taken to a local hospital for treatment and were in stable condition, CNN reported. A 1-year-old was among those rescued. The large vessel sank after heavy rainfall from strong storms caused flooding and landslides in parts of Italy.

Prosecutors in a town near Palermo have since opened an investigation into the events leading up to the sinking, which may shed some light on why Lynch was aboard the superyacht. Lynch's wife, Angela Bacares, was one of the rescued passengers, the BBC reported.

Here is what we know about Lynch.

What companies did Mike Lynch found?

In 1996, Lynch co-founded the Autonomy Corporation, an enterprise software company now known as HP Autonomy. He also founded Invoke Capital , a venture capital fund.

Through Invoke Capital, Lynch became a co-founder of Darktrace, a British cyber security company established in 2013 and headquartered in Cambridge, England.

Why was Mike Lynch charged with fraud?

Soon after Lynch sold Autonomy to Hewlett-Packard (HP) for $11 billion in 2011, a sale in which he made around $800 million, he was hit with civil and criminal charges.

In November 2012, HP announced an $8.8 billion writedown of assets and claimed Autonomy artificially inflated its value by hiding "serious accounting improprieties, disclosure failures and outright misrepresentations," the Guardian reported.

Although the UK Serious Fraud Office ended its investigation of the sale due to insufficient evidence, Lynch and Stephen Chamberlain, former vice president of finance at Autonomy, were indicted for fraud in the U.S. in November 2018. Sushovan Hussain , Autonomy's former finance chief officer, was found guilty of fraud in 2018 and sentenced to five years in prison, according to the U.S. Attorney's Office for the Northern District of California .

HP won a civil action in the High Court in London in January 2022 against Lynch and Hussian, the BBC reported. Damages were to be decided later, with the judge saying the amount would be "significantly less" than the $5 billion claimed by HP, according to the outlet.

Was Mike Lynch found guilty?

Lynch was extradited to the US in May 2023 to face 16 counts of wire fraud, securities fraud and conspiracy. He and Chamberlain, who was charged with 15 counts of wire fraud and conspiracy, pleaded not guilty.

On June 6, 2024, the men were found not guilty of all charges.

Lynch told BBC Radio 4 in August that although he knew he was innocent at the onset of this 11-week trial, he felt his wealth allowed him to prove his case in U.S. court.

"You shouldn't need to have funds to protect yourself as a British citizen," he said.

Stephen Chamberlain on life support

On Saturday, two days before Lynch's disappearance, Chamberlain was seriously injured in a road accident, Reuters reported, citing a person familiar with the matter.

Chamberlain was struck by a car in Cambridgeshire on Saturday morning and was placed on life support, the person said, per Reuters.

Contributing: Reuters and Cybele Mayes-Osterman/ USA TODAY