420

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: Our recent successes

420 Mackay Boats History

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

420 Tuning Tips

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420 Class: Club, Collegiate = Win, Win

August 1, 2014 by Sail1Design Editor 1 Comment

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Header image - 420 Sailboat: A Comprehensive Review

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.

Author image - Poppy Harvey-Fitzgerald

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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

I am ready to help you with booking a boat for your dream vacation. contact me..

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ZIM SAILING

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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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INTERNATIONAL 420

Make your mark in the 420.

Ignite your passion for sailing with the International 420 class and North Sails as your trusted partner. Our high-performance sails are designed to elevate your 420 experience to new heights. Whether you're racing at the top level or exploring the joys of sailing, North Sails has the expertise and cutting-edge technology to help you dominate the competition. Join the ranks of young sailors who trust North Sails to provide the winning edge in the International 420 class. Experience the thrill of sailing with the ultimate competitive advantage. It's time to set sail and make your mark with North Sails by your side.

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All-Purpose | Teams below 115kg

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420 TUNING GUIDE

Get ready to tune up your International 420 like a pro with the North Sails Tuning Guide. Packed with cool tips and tricks, this guide will help you unlock the speed and excitement you crave on the water. Level up your 420 game and sail with style using North Sails' expert tuning advice.

INT. 420 EXPERTS

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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:

i 420 sailboat

About Club 420

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 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:

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Club 420 Resources

i 420 sailboat

The Club 420 sailboat is ideal for yacht clubs and institutional racing programs that want a larger fiberglass boat than the FJ. West Coast Sailing has all the resources you need to rig, find replacement parts, and enjoy sailing the Club 420.

Shop Club 420 Parts

Club 420 Photos (Link)

Club 420 Line Lengths:

Main Halyard  40 ft 6mm Halyard 1

Jib Halyard (Complete) --- --- Wire Halyard 1
Jib Halyard (Tail) 16 ft  6mm  Halyard 1
Spinnaker Halyard 38 ft 4mm  Halyard 1
Topping Lift 30 ft 5mm  Halyard 1
Mainsheet 30 ft  9mm Sheet 1
420 Jib Sheet 25 ft  9mm  Sheet 1
Spinnaker Sheet 36 ft  5mm  Sheet  1
Spliced Mainsheet Bridle --- --- Sheet  1
Centerboard Downhaul 5 ft 5mm  Control Line  1
Centerboard Uphaul 7.5 ft  5mm  Control Line 1
Cunningham 5 ft  5mm  Control Line Robline Sirius 500 
Foreguy 8 ft  5mm  Control Line
Outhaul Line 10 ft  5mm  Control Line 
Vang (JRV 16:1) 18 ft 3mm  Control Line 
Vang (SCV) 16 ft  5mm  Control Line 
Hiking Strap Aft Tie 4 ft  5mm  Misc. 
Hiking Strap Center Tie 1.5 ft  5mm  Misc. 2
Hiking Strap Shockcord 4.5 ft  6mm  Misc.  2
Painter (Bow Line) 15 ft 8mm  Misc.
Spinnaker Bag Shockcord 5 ft  5mm  Misc.
Spinnaker Block Line 2 ft  2.7mm  Misc. 2
Spinnaker Pole Shockcord 9 ft  5mm  Misc.
Trap Wire Adjuster 7 ft  5mm  Trapeze 2
Trapeze Shockcord 11 ft  5mm  Trapeze

About the Club 420:

The Club 420 sailboat is a popular double-handed sailing dinghy that is widely used for both recreational sailing and competitive racing. This boat is known for its stability, versatility, and performance, making it an ideal choice for sailors of varying skill levels. The Club 420 is equipped with a main and jib sail, providing sailors with an exciting and responsive sailing experience. Its design promotes teamwork, making it a popular choice for youth sailing programs and racing events. The boat's manageable size and ease of handling contribute to its popularity among sailors looking for an accessible yet exhilarating sailing experience.

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  • Sailboat Guide

i 420 sailboat

2007 Lagoon 420

  • Description

Seller's Description

Lagoon 420 Catamaran For Sale By Broker Location: Branford, CT, US Asking: $395,000 (USD)

S/V Island Cat is a New England based 2007 Lagoon 420 catamaran for sale by broker.Beautiful, meticulously-maintained Lagoon 420 with highly desirable Owners (3-cabin, 3-head) Layout and multiple upgrades. Panoramic views from the salon and large windows in the spacious cabins add to the comfort and livability. The raised helm station adjacent to the cockpit, with all lines leading back to it, makes this boat a pleasure to sail. Perfect for coastal or blue-water cruising! The Lagoon 420s are large and spacious. The hard bimini allows for plenty of breeze yet protection from the elements. The cockpit is slightly below deck level to allow for movement around the perimeter of the boat.…

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)

When first introduced the LAGOON 420 was advertised as ‘the first series-produced sailboat with diesel-electric drives as standard equipment’. A number of layouts available with owner or charter versions. Offered for sale/charter from the Moorings company. An updated version is the LAGOON 421, equipped with the more conventional twin diesel power. Replaced with a new (2015) LAGOON 42. (listed here as LAGOON 42-2).

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SAILORS Tips for buying a 420

i 420 sailboat

© Andrea Lelli

i 420 sailboat

If you are planning to buy a brand new boat, then you should contact the importers in your country or the 420 Licensed Builders directly.

As with any boat, if you are planning to buy a second-hand 420 then there are some top tips to ensure you buy the best possible boat for your money.

The International 420 Class is working with our partner Nautest.com who has provided a free of charge 420 Marketplace where you can advertise your 420 and 420 equipment for sale.

Top Tips for buying a 420 boat

Courtesy of Don O'Donnell (GBR) - past 420 International Measurer

Certificate

  • On arrival ask to see the certificate, every 420 has one.
  • Determine the age of the boat, now check the certificate registration number against the plaque number in the hull, if these tie up registration is in order.
  • The next and most important step is to check for correctors, the certificate will tell you what correctors, if any, are fitted. Correctors on modern 420s are fitted to the transom but on earlier boats they were fitted under the thwart. If correctors are listed but not in place they have been removed illegally i.e. without the authority of an official measurer, who would issue a letter stating that the boat had been reweighed and the new weight should be recorded on the certificate.
  • Most boats gain weight after a season’s hard racing; a one year old boat will probably gain one kg and a three year old boat probably two to two and a half kg. depending on after sailing care.
  • Many new boats are built up to minimum weight of 80kg at the client’s request, whilst other clients like to see correctors. The advantage of a second hand boat with correctors is that the weight can be reduced by their removal .

Hull Construction Check

  • Now for the construction check. Start with the tank to floor flanges to see if they are parting. If there are any signs of de-lamination then beware as this is a job for the professional. A cumbersome repair will be very evident.
  • Move to the gunwhales and check for parting of the hull-deck joint. If all is in order, check the stem head fitting for security - remember this anchorage takes a pounding and can work loose,
  • Look under the hull carefully and check for splits or bodged repairs especially in the vicinity of the centre board slot.
  • Check the foils for general wear and tear; they are indeed replaceable but expensive. Try to borrow a thickness gauge to check for maximum thickness of 20mm.Wood foils can fail on thickness but GRP foils are generally trouble free.
  • Spars should not be a problem, but watch out for missing black bands on masts and booms.
  • Sails should be checked for the correct numbers, and make sure that the spinnaker is numbered on both sides. The sails should be signed, by a measurer, near the tack and if so check the measurer’s date. In this way you will be able to tell if the sails are from that boat or are re-numbered from an earlier boat.

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COMMENTS

  1. 420 (dinghy)

    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.The name refers to the boat's length of 420 centimetres (4.2 m; 13 ft 9 in).

  2. Introduction to the 420

    Introduction to the 420. 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.

  3. 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 ...

  4. 420

    A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.

  5. 420 Sailing

    Colin POSTEL / Theo HENRY. 102. 10. FRA. Malou CHOUILLOU / Juliette BOURGEOIS. 117. 2024 420 & 470 Junior European Championships - GRE - U17 Final results.

  6. 420

    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 ...

  7. 420 Class: Club, Collegiate = Win, Win

    420 Class: Club Versus Collegiate By Airwaves writer Tyler Colvin As one of the most highly utilized youth training boats in North America, the 420 was designed in the mid 20 th century as a stepping stone for the Olympic 470 class (www.usi420.org). Since its introduction into the youth sailing community, two popular variations on the design have risen to the forefront of modern junior sailing.

  8. 420 Sailboat: A Comprehensive Review

    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 ...

  9. 420

    Learn about the 420, a two-person monohull dinghy with spinnaker and trapeze, and one of the most popular classes in World Sailing.

  10. Why 420 Sailing Continues to Stay Strong as the Boat of Choice

    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 important.

  11. Thrilling 420 Sailboats: Exploring Dinghy Sailing

    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

  12. Discover 420 Sailing

    Discover 420 Sailing - The international two-person dinghy for young sailors - By the International 420 Class Association - #420sailing #420class #jointhe420...

  13. Zim C420 Sailboats

    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 ...

  14. How to Rig a 420 Sail Boat

    In this video you will learn how to completely rig a 420 class sailboat and get it ready to put in the water.-----MUSICPolar Iris by White Morninght...

  15. International 420 Basic Rigging Guide

    The Club 420 design incorporates a number of modifications for intercollegiate sailing in the US. Although the two boats are different in a number of ways, many of the Club 420 sailing principals and handling characteristics are similar to the International 420. Many articles found on the Internet are for the Club 420, so be careful to identify ...

  16. International 420 Class

    MAKE YOUR MARK IN THE 420. Ignite your passion for sailing with the International 420 class and North Sails as your trusted partner. Our high-performance sails are designed to elevate your 420 experience to new heights. Whether you're racing at the top level or exploring the joys of sailing, North Sails has the expertise and cutting-edge ...

  17. Why to Sail a 420

    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 ...

  18. How to Rig a 420

    Watch and learn as our very own Ian Bosse teaches you how to rig a 420 to be ready to sail!

  19. Club 420

    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 ...

  20. 420

    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.

  21. Club 420 Sailboat Resources

    The Club 420 sailboat is a popular double-handed sailing dinghy that is widely used for both recreational sailing and competitive racing. This boat is known for its stability, versatility, and performance, making it an ideal choice for sailors of varying skill levels. The Club 420 is equipped with a main and jib sail, providing sailors with an ...

  22. I420 sailboats for sale by owner.

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  23. 2007 Lagoon 420

    S/V Island Cat is a New England based 2007 Lagoon 420 catamaran for sale by broker.Beautiful, meticulously-maintained Lagoon 420 with highly desirable Owners (3-cabin, 3-head) Layout and multiple upgrades. ... The raised helm station adjacent to the cockpit, with all lines leading back to it, makes this boat a pleasure to sail. Perfect for ...

  24. Tips for buying a 420

    Top Tips for buying a 420 boat. Courtesy of Don O'Donnell (GBR) - past 420 International Measurer. Certificate. On arrival ask to see the certificate, every 420 has one. Determine the age of the boat, now check the certificate registration number against the plaque number in the hull, if these tie up registration is in order. Correctors.