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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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- Sailboat Guide
420 is a 13 ′ 9 ″ / 4.2 m monohull sailboat designed by Christian Maury and built by Rondar Raceboats, Fountaine Pajot, Snapir Sailing Craft Ltd., MacKay Boats Ltd., Lanaverre, Johnson Boat Works, Far East Boat Co., Whitecap Composites, Xtreme Sailing Products, and Nautivela 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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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.
FAQs more about 420 sailboats
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420 Sailing Dinghy
420 sailing dinghy
The International 420 dinghy is a strict one-design class, sailed by a crew of two. Fitted with a trapeze they are highly competetive. There are 56,000 worldwide. This popular dinghy is sailed at school, club, open, national and international levels. There are many second hand boats available, active clubs and excellent tuition for all levels.
The international 420 dinghy offers performance, strength and a higher degree of safety than many other classes. The buoyancy tanks are sealed and have Styrofoam flotation that will keep the craft afloat, even if holed. The rig is easily manageable in the strongest of wind conditions and performance is boosted with the addition of a trapeze and spinnaker.
The size and ‘easy to sail’ characteristics of the International 420 make it ideally suited for both competitive and recreational sailing by all members of the family, whether young or old. With status granted by the ISAF, the 420 has grown rapidly throughout the world and is now recognized as the premier youth training dinghy. The 420 sailing dinghy is the natural choice for National and World Youth Championships. The ISAF tightly control both design and construction ensuring the highest level of uniformity.
- Specification
- Related Links
Length : 4.2m Beam : 1.63m Weight : 100kg (minimum) Sail Area : Main 10.25m sq, Jib 2.8 m2
British International 420 Class Association
International 420 Association
  InformationCharacteristics. 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. Large opening in front of the daggerboard box that helps to drain the water in the direction of the bayler. Large opening behind the daggerboard box that helps the perfect drainage of the water in the direction of the bayler. Simple and hidden centreboard lowering system. Large bags of anti-solar fabric and Teflon finish, water repellent, with diagonal openings that facilitate the lifting and lowering of the spinaker. Transparent window in starboard bag for “instructions”. If you would like us to send you a quote for this boat or any accessory, please fill in the attached form. If you indicate the place of delivery we will detail the budget with transportation included. Southerly 420Sailboat specifications.
Southerly 420's main featuresSoutherly 420's main dimensions, southerly 420's rig and sails, southerly 420's performances, southerly 420's auxiliary engine, southerly 420's accommodations and layout.  Similar sailboats that may interest you:Class Contact InformationClick 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? 2500 Photo Credit:  About Club 420The Club 420 is a two person dinghy which forms the base of many local, high school and collegiate programs in North America. Simple for beginning sailors and yet challenging enough for collegiate champions. The Club 420 offers more learning opportunities than any other double-handed boat. Over 5,000 Club 420s are sailed in youth, high school and collegiate programs all over the United States, Canada, Mexico and the Caribbean. Boats Produced: 8600 Class boat builder(s): Laser Performance Zim Sailing Approximately how many boats are in the USA/North America? 5000 Where is your One-Design class typically sailed in the USA? List regions of the country: East Coast, Gulf Coast, West Coast, Great Lakes, sprinkled throughout the middle of the country 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: 240-300 Boat Designed in 1970 Length (feet/inches): 13’9″ Beam: 5’4″ Weight of rigged boat without sails: 240 Mast Height: Back to One-Design Central Copyright ©2018-2024 United States Sailing Association. All rights reserved. US Sailing is a 501(c)3 organization. Website designed & developed by Design Principles, Inc. --> 
Getting into Racing
420 to the Max - Free online training videoNew 420 tuning video.
420 Boat Settings - Beginner's Guide
420 Sails and Spars Manufacturers Guides
DEVELOPMENT 420 Boat Settings - Beginner's Guide © Event Media Courtesy of the British 420 Class Association , below is information on some basic boat settings written by Matt Burge: Guide to Barber Hauling Guide to Mast Rake Guide to Changing Mast Rake on the Water Guide to using Mast Chocks Guide to Spreaders Guide to Main Sheet Bridles Guide to Tuning Barber hauling is the name given to tensioning the windward/slack jib sheet. This is not done in all boats (e.g. the Mirror) but in the 420 it helps to achieve a faster jib slot / leech shape. You apply barber hauler simply by pulling the windward jib sheet and cleating it. It is very important to know how much to pull it on though. Barber hauling makes the jib fuller and therefore more powerful. It has the same effect on the jib as chocks do to the main, and therefore follows a similar pattern:
The strengths of wind at which you should change settings depends entirely on your crew weight: Use the light wind setting upto the point where you become overpowered. i.e. your crew is flat wiring and you are having to play more than 6” of mainsail. Then change to medium wind settings. If you are then having to play more than 6” of mainsail all the time on medium settings then change to strong wind settings. Always choose the setting that best suits the strength of the lulls.
This process will take a few minutes and so is not practical to do in a race. However it is useful to be able to do before a race and in between races should the wind get up or die. It is a good idea to tie your shroud plate pins onto the plates so that you do not loose them whilst changing holes on the water. It is also safer to buy shroud plates that the shrouds cannot come out the top of should things go wrong! Chock are the small ‘mushroom-shaped’ plates that you can put in front of the mast. They affect the pre-bend and as a result affect the amount of power you have in the mainsail: Less pre-bend = Straighter mast = Fuller mainsail = More power More pre-bend = More curved mast = Flatter mainsail = Less power Chocks alter the pre-bend by pushing back on the lower mast, therefore straightening it. So the more chocks that you put in the straighter the mast becomes and the more power you achieve. Therefore; more chocks = more power If you set up your light wind mast rake you will find a gap in front of the mast where the chocks go. If you fill this gap with chocks so that they are touching the mast but not pushing back on it this is your neutral number of chocks. Record/remember this number of chocks. When you have neutral chocks in your sail is at its flattest, so neutral chocks are good when the wind is very light or if you are overpowered. As soon as you get on the wire there is enough wind for the sail to cope with being a bit fuller & more powerful put one more chock in (we call this +1). When you are well out on the wire (but not flat wiring/overpowered), and especially in choppy conditions put two extra chocks in (+2) for maximum power. However, as soon as you become overpowered (i.e. flat-wiring & playing the mainsail all the time) then go back down to neutral chocks because you do not need any extra power. Also, do not exceed two extra chocks – putting in three extra chocks is likely to invert the mast!!! It is not always practical to change chocks in a race so make sure they are right before you start. If the wind does change in a race such that you need to change the chocks then the best time to do it is on a run – there is less forwards pressure on the mast on a run & the crew is in the boat and able to reach the chocks. NOTE: If you are very overpowered in very strong wind then you can remove one of the neutral chocks (-1). This will help to flatten/de-power your sail even more. If you set up your light wind setting you will notice that your mast has a slight bend/curve going up it, this is called the pre-bend. The amount of pre-bend is controlled by the spreaders. You can measure pre-bend by following these steps:
Different makes of sails require different pre-bends, these are: Pinnel & Bax – 35mm Olimpic – 33mm Speed – 32mm North – 32mm If your pre-bend measurement does not equal your sail’s requirement then release the rig tension, adjust the spreaders so that they are angled further back if your measurement is too small or further forward if it is too large. Then re-measure the pre-bend using steps 1-4 and keep adjusting until its right!  The bridle is the piece of rope that holds your mainsheet block and joins onto each end of the bar behind the centreboard. The lengths of the bridle are very important because they control the mainsail leech tension when block to block. The rules state that you are allowed two settings on your bridle length, so we set up one to be used with the light wind mast rake and one to be used with the medium & strong wind mast rakes. (The bridle length is changed with mast rake like this because the boom height alters with mast rake). To set up the light wind bridle:
To make the strong wind setting just tie two loops 7cm up from where the ends of the bridle join the clips on the bar. To use the strong setting you just need to clip the loops onto the bar:  NOTE: You will now need to set up your light wind setting again because tying the loops will have shortened the light wind settings quite a lot. The following is a general table on how you might set up your 420 for different conditions. This does depend upon your crew weight though and so should not be followed religiously. I would encourage you however to make a table of your own personal settings built up through trail and error.  Related content
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Write a Review  DescriptionClick Here to Request a Quote! The 420E from Zim Sailing sets a new standard in enclosed deck technology for high school and college sailing. The airtight foredeck has taken weight out of the bow, increasing performance and safety, without sacrificing the durability Zim Sailing's boats are known for. Institutions such as high schools, colleges, and community sailing programs, demand a unique combination of performance and toughness, and the 420E delivers. Hull and Deck
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The International 420 Dinghy is a sailing dinghy popular for racing and teaching. The hull is fiberglass with internal buoyancy tanks. The 420 has a bermuda rig, spinnaker and trapeze. It has a large sail-area-to-weight ratio, and is designed to plane easily. The 420 is an International class recognised by World Sailing.
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 […]
The 420 is an established worldwide performance two-person trapeze and spinnaker racing dinghy which holds status as a World Sailing International Class. There are 56,000 boats which have been built worldwide. This popular dinghy is sailed at school, club, open, national and international levels. There are many second hand boats available ...
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.
420 is a 13′ 9″ / 4.2 m monohull sailboat designed by Christian Maury and built by Rondar Raceboats, Fountaine Pajot, Snapir Sailing Craft Ltd., MacKay Boats Ltd., Lanaverre, Johnson Boat Works, Far East Boat Co., Whitecap Composites, Xtreme Sailing Products, and Nautivela starting in 1959.
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. 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 ...
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 ...
Club 420 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.
Learn about the 420, a two-person monohull dinghy with spinnaker and trapeze, and one of the most popular classes in World Sailing.
The International 420 is a suitable size for two youth sailors and a good two person intermediate youth learning boat.
The International 420 dinghy is a strict one-design class, sailed by a crew of two. Fitted with a trapeze they are highly competetive. There are 56,000 worldwide. This popular dinghy is sailed at school, club, open, national and international levels. There are many second hand boats available, active clubs and excellent tuition for all levels.
The 420 is a proven transition class which provides sailors with excellent skills in strategy, tactics, boat handling, tuning and technique. There are 420 builders all over the world and equipment is easily available, with a 420 ready to sail costing on average EUR5,500. Choosing your Crew. As with any two-person boat, finding a crew is ...
The 420 sailboat is a fast sailing dinghy thats crews 2 people and has a spinnaker as well as the three main sails.
Association The 420 was designed in 1959 by Christian Maury and was adopted as a World Sailing class in 1973.
The 420 is a stable boat to sail which planes upwind easily, the trend in modern yachting. It will teach you how to sail in an environment of partnership with your crewmate, adding another significant element to your development as a sailor (and as a person). The 420 is a global class with great opportunities available to develop your sailing ...
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.
Sailboat specifications. The Southerly 420 is a 42'2" (12.86m) cruising sailboat designed by Humphreys Yacht Design (United Kingdom). She was built between 2010 and 2017 by Northshore (United Kingdom). The Southerly 420 has also been marketed as Southerly 435.
The Club 420 is a two person dinghy which forms the base of many local, high school and collegiate programs in North America. Simple for beginning sailors and yet challenging enough for collegiate champions. The Club 420 offers more learning opportunities than any other double-handed boat. Over 5,000 Club 420s are sailed in youth, high school ...
This document deals specifically with the International 420 as opposed to the Club 420. The Club 420 was originally made by Vanguard in the US, and its design is based on the International 420. The Club 420 design incorporates a number of modifications for intercollegiate sailing in the US.
420 Boat Settings - Beginner's Guide Courtesy of the British 420 Class Association, below is information on some basic boat settings written by Matt Burge: Guide to Barber Hauling Guide to Mast Rake Guide to Changing Mast Rake on the Water Guide to using Mast Chocks Guide to Spreaders Guide to Main Sheet Bridles Guide to Tuning
The Basic C420 Rigging Guide. by Jim Young. (UPDATED early 2018 - this guide was originally written for the Performance C420, built by Perfomance Catamarans (NACRA), in 2004. The mold for that boat was purchased by the then-new Zim Sailing in late 2009. Zim has made a few rigging updates and hardware changes over the years since, but all of the ...
The 420E from Zim Sailing sets a new standard in enclosed deck technology for high school and college sailing. The airtight foredeck has taken weight out of the bow, increasing performance and safety, without sacrificing the durability Zim Sailing's boats are known for. Institutions such as high schools, colleges, and community sailing programs ...
420 Sailing Tacking and Jibing/Gybing Practice. Wind is about 5ish knots. Collegiate Sailing Team Practice. Downwind and upwind. Filmed on an iPhone5. This practice started with a circles drill ...