Optimist Sailboat Build

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Introduction: Optimist Sailboat Build

Optimist Sailboat Build

Attachments

opti sailboat plans

The jig produced on the ShopBot retains the correct shape and supports the boat, while it is being built, to retain the exact design measurements.   The plans for the boat can be found from many sources for free on the internet.   Plans are available in many languages, as well.  One such source is http://www.optiworld.org/Woodguide05.pdf Another guide to building an optimist is http://www.burcotboats.co.uk/howToBuild.pdf , as well as half a dozen other well written articles on the internet.   But none provide CAD quality drawings or files to work with modern computer controlled machine tooling.   Well, here they are:  The jig as well as the major parts of the boat.     The jig sides , mast step, rudder, dagger board , dagger board case ends and doubler pieces are made from 18mm or 3/4" ACX or marine grade plywood; (1219.2mm x 2438.4mm) 48" x 96".    

Now to get started, the jig we have designed is the exact dimensions of a finished hull shape.   Both ends of the jig have interlocking pieces to allow for inserting and removing as needed during the building of the boat.   The cross members are standard 2" x 4" cut to 44" long and with a 3/4" dado 8" to each side of center to fit into the grooves of the forms.   These should be cut so as to be flush with the top of the form and screwed into place to prevent movement.   The bottom boards provide a stable platform for the jig to sit on.   The jig should be placed on a flat surface for the build, as distortion to the jig will transfer to the boat being built.    Save the scraps for blocking.

opti sailboat plans

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Sailboats - Racing

Optimist club racer.

Clark Mills designed the original Optimist Pram in 1947. His intention was to offer a simple boat that children could use to learn to sail and build themselves. We chose to name our version of the Optimist the "Club Racer" to reflect the original idea behind the design. The Club Racer is 99% the same as the epoxy/wood version of the Optimist as described by the IODA standards, however it differs in that it is much easier to build and will be more durable, and last longer.

Design Specifications

1360 SW Old Dixie hwy #103

Vero beach FL 32962 Phone:

Optimist Club Racer

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Optimist Resources

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Understanding Club, Silver & BlackGold spars.

How to set up the standard Opti rig.

Detailed photos of rigged Optis.

The Optimist sailboat  is the designed for youth sailors and is the choice for introductory sailing experiences. West Coast Sailing has all the resources you need to rig, find replacement parts, and enjoy sailing your Opti.

Opti Line Lengths:

Upper Sprit Halyard 4 ft 4mm  Halyard   
Lower Sprit Halyard  4 ft  4mm  Halyard 
Mainsheet 24 ft 7mm Sheet 1 /
Outhaul  5 ft 4mm Control Line 1
Vang  3 ft 5mm Control Line 1
Boom Jaw Retainer  2 ft  3mm  Misc.
Bow Loop  1 ft 3mm Misc. 
Daggerboard Retainer  6 ft 3mm Misc.  1
Daggerboard Retainer Bungee 5 ft 5mm Misc.  1
Hiking Strap Tie  3 ft 5mm Misc. 
Hiking Strap Lift 2 ft 5mm Misc. 
Mast Tie-in  2 ft 3mm Misc.  1
Main Sheet Bridle  5 ft 3mm Misc. 
Main Sheet Bridle Safety 2 ft 3mm Misc. 
Bow Line  30 ft 6mm Misc.  1
Sail Ties  2 ft 3mm Misc.  12
Sail Ties - Corner  2 ft 3mm Misc.  12

About the Optimist:

The Optimist sailboat, affectionately known as the Opti, is a popular and iconic single-handed dinghy designed specifically for young sailors. Renowned for its simplicity, stability, and ease of use, the Optimist has become a staple in youth sailing programs worldwide. With a distinctive pram-like hull and a single, sprit-rigged sail, this small boat provides an excellent platform for beginners to learn the fundamentals of sailing. Its widespread use in sailing schools and junior regattas highlights its effectiveness in nurturing sailing skills and instilling confidence in young sailors, contributing to its status as one of the most widely sailed and recognizable boats in youth sailing.

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The CABBS Optimist Pram

captain Published October 23, 2016 · Updated April 1, 2024

ss-fresh

The CABBS Optimist is plywood on frame construction and assembled with construction adhesive and screws. Simple and quick to build with common hand tools, it can be crafted in 40 – 60 hours. The boat weighs approximately 65 lbs.

The CABBS Optimist Plans

opti sailboat plans

The CABBS Optimist plans are based on plans published in an early 50’s boating magazine and were drawn in 2006 to support a youth boatbuilding program on Cleveland’s Lake Erie waterfront.  The CABBS Optimist will not meet the measurement requirements for competition as stipulated by the International Optimist Association.

The CABBS Optimist is an excellent sail training platform and perpetuates the Optimist dinghy designer Clark Mills’ ideal of offering youth a sailboat they could build with a minimum of hand tools and woodworking skills.

cabbs_opti2

The builder can work from their computer screen, print out the plans on a home printer,  or use a local resource to print out pages of the plans on 18″ X 24″ sheets.

The PDF of the CABBS Optimist plans cost $35 USD. The plans are copyrighted and give the buyer permission to build one boat from the plans. Proceeds from the sale of the plans help to support CABBS youth boatbuilding efforts.

How to Order

boys-launching-optis

Once we receive your check we will e-mail you the PDF file of the CABBS Optimist plans and construction text.

Building a CABBS Optimist

panel-port-side2

Even more information

Want to learn more about building an Optimist? Here is a great site that compiles just about anything you wanted to know about building an Opti.

http://woodenoptimist.blogspot.com

Optimist Racing

Although the CABBS Optimist is true to Clark Mills’ objectives and fun to sail, it will not meet the measurement requirements for sanctioned racing competition under the International Optimist Association.

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By Roy McBride - Cape Town, South Africa

This design has one of those histories that sound like a lot of fun, the designer, Clark Mills, is said to have done the design drawing on a scrap of paper. This was around 58 years back and he lived until just last year, to see his single design out sell all the other dinghy classes combined. He also gave his design to the world and never charged a design fee, allowing what was to become a world wide Optimist Association to run and control the class.

That first boat was made from two sheets of ¼” waterproof, or marine, ply plus some Meranti cleats and screws and glue to hold it all together. It was either clear varnished or painted with house hold lead enamel paint. The class grew and grew. The boats lasted for years and many of those old boats still exist. Then came what was to be a very large change in the class rules. The allowance and introduction of GRP (fibreglass) which more or less sent the older wooden boats into history; why?

A modern Epoxy/Plywood boat from one of our kits. It raced in the SA Nationals in 2005.

(click images to enlarge)

When our daughter was learning to sail, she was about 12 or so. We took her to the Imperial Yacht Club, which sails and races dinghies on a lake near our home. There we saw the old plywood Optimists but also the newer GRP boats. All the top kids wanted to sail one of those, saying they were better boats. If more money buys better they had to be. Prices for those Imported boats went as high as R40,000 I was told, that’s US$6666, it sounds impossible I know but fully imported boats have to be shipped and when they arrive a high rate of local import duty has to be paid.

At the time I had an idea to make a plywood Optimist for Janet as she was proving to be a fine little sailor. Plans were freely available from Hans who was in charge of the association here in the Cape. So asking my good friend Andy, of the local North Sails loft, what he thought about the difference he simply told me the GRP boats were better as they were stiffer.

Asking why I was shocked to hear that the GRP boat has a foam sandwich bottom! I said it was easy for me to construct a plywood boat in the same manner? That he said would not measure so would not be allowed to compete. As I could not afford the expensive GRP boats and there was little point in building a plywood boat that was not competitive, so at that time it was the end of the story where plywood was concerned.

The finally developed CNC plywood Optimist kit, panel set. We include all the timber solids, glues, glass tapes, screws as well as our twelve page builders instruction guide!

Well, all is not quite as it seems: I was not the only one who had assessed the situation and in 1997 a group was formed to re design the plywood boat - enter THE PLYWOOD/EPOXY BOAT! They started with selecting very light Occume Marine Plywoods; one sheet of 12mm and one sheet of 6mm. This was a large departure from the previous plywood construction. The 12mm sheet became the bottom and in a stroke of good design they had equalled the foam sandwich stiffness. By not using as many Meranti wood cleat and all the screws but just epoxy and glass tapes they saved lots of weight and now we had a boat that was both light weight and stiff.

The wood/epoxy Optimist as a complete kit

Enter CKD BOATS

We were more than pleased to be asked to accept an order from the Knysna Yacht Club, which is a round 250 miles North East of Cape Town. The original minimum of five boats went to seven, then nine by the time we closed for the annual December holidays. There was a catch with the order, of course. The RSA Optimist nationals were in mid December - we had around six weeks to develop the design but also leave the mums and dads enough time to build the five kits required for the event.

Most of our other work was shelved while we got stuck into the program. The official plans arrived; the plan of action was to have our CNC shop man, Sean, enter all available sizes off the drawings into his PC while the rest of the kits materials were being completed. This includes pre shaping all of the Meranti wood parts - making the assembly a lot simpler.

We cut the first set of panels in a lower cost exterior ply, reasoning that if we found mistakes we would not waste valuable marine grade plys. This was just as well. The boat you see here had to be taken apart some five times, as the plans do not match the strict specifications. One dimension was out by 14mm (5/8”). Each time the trial boat was rebuilt it was then measured again, any changes were then given to Sean and he changed his CNC files to suit our changes. It’s hard to understand that the plans do not match the specifications laid down by the class rules!

Mike, using his body weight to shape the 12mm lower panel into our specially designed builders jig.

Once we thought we had things right we had the boat measured by an Optimist official who found it correct.

This is quite simple: you unscrew all the hull sides from the 12mm thick lower panel, lift off the top of the boat as the four sides in one unit, apply glue, then screw it back together. You then glue and screw each corner, one at a time.

The only person who ever had problems was a guy who later admitted he never read the plans.

The fully detailed instructions we supply give you a step by step system to build with. The only person who ever had problems was a guy who later admitted he never read the plans. We sent him twenty pictures instead - the pictures are in the builders book anyway. Once the boat is glued together, the inside panels go in. We supply extra bulkheads as spacers. These are later removed but only when all the Meranti Joinery and side rails are fitted.

The removable bulkheads are either side of the lower central and fixed bulkhead.

We made the Knysna Yacht Clubs handover deadline with a day or so to spare, then the rush was on for mums and dads, helped by their kids to make up five of the kits, as they had already sent in their entries for the SA Nationals at Hermanus Town, about 100 miles north east of Cape Town. They went into the Novice section and the CKD Boats kit boats finished four out of the first five places. We missed out on third place!

One really great thing that came out of the event was that our boats on average were all 750 grams lighter than the far more expensive GRP Dragon boat from China. As the new wood/epoxy is as stiff as a plastic one and our boats weigh less, there is nothing to be gained by spending more on the plastic boats?

An indication of prices at that time.

CKD Boats kit, complete with Optiparts Mast, Harken Deck Pack, North Sail…….R8450

The same gear but a Dragon GRP hull…….R17,500

Which in US$ terms is around U$1408 and a massive U$2917. With our option you have to get your hands dirty a little though!

Lots have now been built and we have happy customers around the country!

A kit finished and in primer.

These boats are lightweight, fast and stronger than any GRP type boats. They are easier to repair as well.

Vince trying his kit build out.

 
Inspection time and happy sailing.

Racing - as they were meant to do.

Roy Mc Bride - Founder - www.ckdboats.com email - [email protected] Cape Town South Africa

More articles by Roy McBride:

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  • Oil Changes
  • Do Yachts Need to be so Expensive?

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Meet the Optimist Dinghy

December 4, 2013 by Sail1Design Editor Leave a Comment

by Airwaves writer Emma White

The optimist, originally designed by Clark Mills in 1947, became a registered One-Design boat in 1995; after a few modifications. It is roughly 8 feet long, precisely 3 feet and eight inches wide, and weighs approximately 77 pounds. Although, many describe this boat as a floating bathtub, it does not stop youth sailors from competing and having fun. Sailed internationally in more than 100 countries with approximately 200,000 sailors registered in optimists. Optimists are safe and are easy for kids to sail who want to hit the water and have some fun. Optimists are also sailed competitively. Whether it be state, national, or even international competitions, opti sailors enjoy the thrill of racing this boat. Sailors learn invaluable skills from high-level coaches, make life-long friends, and learn skills that increase independence through various clinics and regattas offered to them.

Optimist sailors range from the age of 10 to15 years old. They are eligible to compete in national and international events. These sailors represent the ‘red’, ‘white’, and ‘blue’ fleets. The divisions further separate the sailors by age. Sailors aged10 are placed into White fleet, followed by sailors aging between 11-12 wh o are in Blue fleet, and finally sailors aging between 13-15 who are in Red fleet. Although, the fleets divided the age group of 10-15, they all compete with one another on the starting line and in the race course. Results of regattas are delineated by “fleet” and the top female competitor is usually recognized. The use of fleets is just one way to identify each racer.  Racing is available to sailors younger than 10 years of age and this group of sailors is referred to as “green fleet”. National and local events are organized for these eager, opti-enthusiasts as well, allowing them to get a head start on opti competition before they join the older sailors.

A wide age range of opti sailors also translates into a broad weight range of the junior sailors. A study of the 2011 Optimist Worlds (a competition among the most skilled opti sailors in the world) which was held in New Zealand, pinpoints the range and average weight of the top ten optimist sailors of the regatta. The average size of the finishers were 110 pounds, with a range of 30 pounds. This means that optis are for sailors of all sizes, and it also means, contrary to popular belief, optimists are not boats that sailors outgrow at the age 13.

Many of opti sailors have aspirations of competing at the Olympic level. In fact, nearly 50 percent of the United States Sailing Team are previous opti sailors. Optimists are provide a strong sailing foundation, fun and they are competitive.

            Rigging Information:

–   One hull

$1 –   Fiberglass

–   One sail

$1 –   The sail is held up with a sprit and two battens

$1 –   Sail-ties connect the sail to the boom and mast

$1 –   To adjust sail shape, change the sprit, vang, and outhaul tension

–   Use a rudder and centerboard

Thank you to the following sources for making this article possible:

http://www.optiworld.org

https://sites.google.com/site/optiracingusscmc/faqs

http://en.wikipedia.org/wiki/Optimist_(dinghy )

http://pix.daveheinphotography.com/Boats

            

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WindCheck Magazine

Optimist Buying Guide

By tom coleman.

The Optimist; at first glance a simple little kids boat…right? The  more you get to know this “simple” little kids’ boat, the more you realize it’s not so simple. But little Jimmy starts sailing class in a month and you’re told to provide a fully rigged Optimist for his use. Where do you start? What do you really need and what’s it all gonna cost? Tom “Optiguytom” Coleman, long associated with junior sailing, is considered internationally as an Optimist guru, especially when it comes to getting kids started in racing. In this article he helps parents get started into the world of the Optimist, unraveling the mysteries of understanding, choosing and purchasing an Optimist sailboat.

Optimist Basics

The Opti, or Optimist Dinghy, is relatively unchanged from the first prams designed and built by visionary Clark Mills in Clearwater, FL, 65 years ago. Testament to Mills’ genius, the Opti remains the largest and fastest growing sailboat class in the world, a phenomenon as THE definitive teaching boat for hundreds of thousands of children the world over.

The Opti is not for everyone. It was designed for children. Optis are sailed by kids as young as five* years old and can be officially raced by kids up to age fifteen. Although it’s possible for a parent to sail an Optimist alone or with a small child, realistically adult sized sailors just don’t fit well. That’s part of the magic behind why they work so perfectly for kids.

Mills originally designed the Opti to be garage-built out of $50 worth of materials… hence the “one sheet of plywood” nearly 4’x8’ size. Little did Clark know that one day two Optis could easily slide into the back of a Suburban or mini-van, or that Mom and a teen could lift it onto the car top, or that the spars (mast, boom, and sprit) could be shipped UPS or flown as baggage.

https://windcheckmagazine.com/app/uploads/2019/01/optimist_nomenclature-2.jpg

Why Buy Them Their Own Boat?

Many learn-to-sail programs provide Optis for participants, but some have gotten so popular that you will need to supply your own boat. Check with the program and solicit their recommendation on procuring a suitable Optimist. As a rule, Optis hold their value extremely well, making the overall investment quite reasonable. While a brand new, ready to race Optimist will start at less than $3,000, completely rigged Optis suitable for beginners can be had for less than $1,000. Another reason to buy your child their own Opti is the pride of ownership that comes from taking care of their own vessel. It’s a great way to build responsibility and help get them invested in this life-long activity.

What Will They Need to Start?

When we say Optimist, or Opti, we are talking about a complete, ready to sail package. Although there are many possible accessories and upgrades, this is what your child must have:

Hull  – it’s the shell or body of the boat, the vessel itself. The vast majority are built of fiberglass. It includes the deck which runs around the top edge and is for sitting on, not standing. The hull also includes the mast thwart, daggerboard trunk and midship frame. These are all permanently attached during manufacture. Every hull has important parts attached mechanically (with screws), or secured by other means. These include hiking straps, ratchet block, dagger board bungee, three flotation bags, mainsheet, mast step (should be adjustable), and bow line.

Blades  – sometimes called foils. They are the rudder (with tiller and extension) and the daggerboard.

Sail  – usually white, made of Dacron.

Rig  – often called spar set; these are the mast, boom, and sprit; the poles that support the sail. The rig includes the lines (ropes) and blocks (pulleys) that control the sail.

Accessories

Bailers  – need two in the boat at all times, flimsy plastic bottles don’t work and are NOT safe.

Blade Bag  – protects and stores the daggerboard and rudder, makes for easier carrying.

Life jacket  – must be USCG Approved and appropriate size.

Whistle  – secured to life jacket with a short lanyard.

Bow bumper  – protects not only your investment but those of others.

Dolly  – for dockside transport, launching, sometimes storage. Some programs require them.

Covers  – depending on how boat will be stored a top or bottom cover may be a good investment.

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Praddle  – one handed paddle. Regular canoe or telescopic paddles DO NOT WORK!

https://windcheckmagazine.com/app/uploads/2019/01/optimist_nomenclature_top_view-2.jpg

New, Used, Chartered?

New complete Opti packages start at around $2700 while used Optis range from $500 on up depending on age, condition, and accessories. A third option is called a “chartered” or “event” Optimist. Think of these as demos, typically used at a few regattas by good sailors. Often these come with brand new spars and sail, carry new boat warranties, and sell for $200 – 300 below retail.

Club, Intermediate, Advanced, Premium Racer?

Those are names of various Opti packages differentiated by the equipment each comes with. Beginning sailors should be most interested in the “Club” or “Club Racer” version. Besides being the most economical, it’s designed for their level; a little heavier duty with less parts to loose or break. The Intermediate will have some upgrades mainly of interest to racing. The Advanced (read more expensive), are aimed at delivering a product suited exclusively toward competitive sailing and bear no advantage to those starting out. It’s important to know that the hull is really the same in each package and can be upgraded as the sailor progresses with the purchase of different spars, blades, and sails.

Where to Buy

Local Sailing Programs

Check the bulletin boards at local yacht clubs and community sailing centers and you’re likely to find at least a couple of formerly sailed Optis available. Ask around, during weekend and after school Opti classes (yes, most have already started), and you may uncover some unadvertised bargains.

Friendly Neighborhood Dealer

Shopping new or used Optis at your local dealership is perhaps the easiest way to obtain the right boat for your child. Typical small boat sales staff, as a rule, are local sailors and have insight on the surrounding programs and what each expects. You’ll find them to be very knowledgeable, highly enthusiastic, but not pushy.

The best deals can be found at the many spring open houses, boat swaps, or Opti auctions. You’ll be able to compare $600 fixer-uppers and $1,000 bargains (privately owned, taken in on commission) to used, chartered and brand new Optis, all at one location. The dealer can fix you up with necessary accessories, including roof racks to transport the newest addition to your family.

Online shopping can produce some real bargains, but has its limitations. eBay and Craig’s List occasionally have listings, but the drawback of buying sight unseen or traveling a long distance to see only one boat may not prove prudent. A recent search produced only one Opti on ebay and five scattered from New Jersey to Rhode Island.

JSALIS.org has a page of used Optis and equipment for sale as does the Opti Class at usoda.org.

Yes, but is it “Class legal”?

Class legal means that the hull, spars, sail and blades (and some accessories) meet certain rigid requirements pertaining to materials, measurements and construction. These requirements keep the Optimist safe for your child while ensuring that every Opti is virtually the same and one doesn’t have a significant advantage over another on the race course. Your Opti may be class legal if it has a sticker with a unique ISAF number or if very old, an IYRU number. The best guarantee is if you have the measurement papers issued by USODA (United States Optimist Dinghy Association) that came with the boat.

…and is it Necessary?

It’s only necessary if those holding the race say it is. Within your program it shouldn’t matter and most green fleet regattas (for beginners) are only concerned that it is safe and a reasonable facsimile. As your child progresses and begins to do more racing (regionally, nationally and even internationally), having a class legal Optimist is an “Opti-must”.

* It’s generally agreed that most kids are not developmentally ready for formal sailing instruction until 8 years of age.

Tom “OPTIGUYTOM” Coleman has been associated with the Optimist Class as a coach and instructor trainer for over a decade. He was Marketing Manager for McLaughlin Boat Works for nearly fifteen years. In 2004 he was chosen by the US Olympic Committee as Developmental Coach of the Year for Sailing. You’ll find him running the Green Fleet at many top Optimist regattas.

You can reach Tom for clinics and regatta coaching at  Optiguytom@yahoo.com .

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Optimist Dinghy (Int)

Optimist Dinghy (Int) insignia

Optimist Dinghy (Int) is a 7 ′ 8 ″ / 2.3 m monohull sailboat designed by Clark Mills and built by Hartley Boats, Phileas Boats, La Prairie, Winner Boats S. L., Johnson Boat Works, SIBMA Navale Italiana, Performance Sailcraft, Far East Boat Co., Xtreme Sailing Products, McConaghy Boats, LaserPerformance, Nautivela, and Zim Sailing starting in 1947.

Drawing of Optimist Dinghy (Int)

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)

Immensely popular youth trainer, designed for and built by a large number of home builders. The list shown here can only represent a small fraction of past and current professional builders.

U.S. Optimist Dinghy Assn. P.O. Box 150127 222 E. Westmonte Dr. #101 Almonte Springs, FL 21401 407-774-7880 Fax: 407-774-6440

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How to Sail an Optimist

Last Updated: May 30, 2024

This article was co-authored by Nitzan Levy . Captain Nitzan Levy is a Sailor, Social Entrepreneur, and the Founder of Sailors NYC, a recreational sailors’ club based in Jersey City, New Jersey that specializes in cruising boats and a variety of community programs. Capt. Levy has over 20 years of sailing experience and has sailed in many places around the world including: the Atlantic Ocean, the Mediterranean Sea, The Caribbean, and the Indian Ocean. Capt. Levy is a U.S. Coast Guard Licensed Master of vessels up to 50 Tons with Auxiliary Sail and Assistance Towing Endorsements. Capt. Levy is also a NauticEd Level V Captain Rank Chief Instructor, an American National Standards Assessor, an SLC instructor, an ASA (American Sailing Association) Certified Instructor Bareboat Chartering, and an Israeli licensed skipper on Boats for International Voyages. This article has been viewed 42,634 times.

Sailing is fun and easy if you know how. Optimists are safe, simple boats designed for children who are learning how to sail. Their main advantage is that there are extensive opportunities for children to take optimist sailing to a very advanced level. Hugely popular, there are optimist national teams in many countries and Optimist World Championships are held annually. On a more local level, there are thousands of smaller competitions available which are organized by yacht clubs and sailing programs.

Step 1 Obtain all of the equipment needed (a rudder, dagger board, sail, mast, boom, and spirit pole etc).

  • Keep in mind that a boat cannot sail directly into the wind.

Community Q&A

Galasy4969

  • Check the weather before you set sail. This way, you’ll have a general idea of which way the wind is blowing. Thanks Helpful 0 Not Helpful 0
  • There are plenty of other small boats to choose from if you are an adult that are a lot easier to maneuver in. The most popular single-handed small boat is the Laser. These usually require you to be over 110 pounds to be able to sail properly. If you are under this weight, another similar boat is the Byte, which is smaller than the Laser and most popular in Canada. Thanks Helpful 0 Not Helpful 0
  • If you are starting out, there is a plastic version available which is slower but more durable than fiberglass. Thanks Helpful 0 Not Helpful 0
  • Sit on the opposite side of the sail. The fastest position for an optimist is when all four corners of the hull are in the water. If there is a light wind, you may find that you have to lean towards the sail in order to achieve this. This helps to keep the boom from coming towards you if the wind is not heavy enough to keep it out. Thanks Helpful 6 Not Helpful 0
  • As with all water sports, sailing can become dangerous when the weather is not favorable. If you are caught out in a thunderstorm, capsize (turn over) your boat immediately so that the mast is underwater and perpendicular to the sea floor. Stay with your boat. Do not go out if you believe that the wind conditions are too difficult for you, however, you should always push yourself to manage in conditions slightly more difficult than you are used to because this is how you will improve. Thanks Helpful 7 Not Helpful 3
  • Ensure you have a bow line with a bowline knot at the end attached to your mast step. Do not thread this through the drain hole in the middle of the rail at the front of the optimist. Doing so will gradually wear away the rope during towing and may lead to it snapping undertow. The severed end will snap back and may lead to serious injury of the sailor, particularly risking eye injury. It will also prevent fast evacuation in the event of a thunderstorm. Thanks Helpful 4 Not Helpful 1
  • Even if there is light wind and clear blue skies, you should always wear a flotation aid. Thanks Helpful 2 Not Helpful 3

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OPTIMIST DINGHY SPEED GUIDE

North Sails class leaders Zeke Horowitz and Juan Carlos Romero answer your International Optimist Dinghy speed and boathandling questions.

Who sails an Optimist Dinghy?

The pram-style Optimist is a great starter boat for learning to sail and later learning to race, and youth sailors can literally take their Optimist Dinghy to whatever level they want. Any motivated young Optimist sailor will develop both confidence and dinghy sailing skills, from boathandling techniques to big-fleet strategy and tactics; some will go on to race at the highest levels. The sailors who do best in the class are those who spend the most time sailing their boats, usually with a good coach, strong sailing program, and ample resources. The International Optimist Dinghy Association is the biggest one-design class in the world.

Optimist speed guide

Top young Optimist sailors line up on the starting line at a clinic held on Miami's Biscayne Bay.

Who is the ideal Optimist sailor physically?

Sailors should be fit and agile, able to move gracefully and hike out for extended periods. Those who do best are usually 12 to 14 years old and weigh up to 110 pounds. Regionally, top sailors can still compete at 115 or even 120 pounds. Girls sail equally with boys, and it’s common to see three or four girls in the top 10 at any regatta.

What are three top Optimist speed tips?

  • Find a good coach and team.
  • Focus hard while you’re on the water.
  • Do well in school so you can miss days while off sailing.

What should buyers know when choosing an Optimist Dinghy?

Any sailor’s first boat is typically a used boat, to allow for collisions due to inexperience with dock landings and being in close quarters with other boats. Competitive sailors will normally move up to new boats as they reach higher levels. Older boats can remain competitive, but heavy travel and racing schedules put a fair amount of wear and tear on the boats. As a result, used boats may need gelcoat dings and scratches repaired. A fully outfitted new boat may run $5,500, while a good used boat costs 30 to 40 percent less. Keep in mind that you can purchase different sizes of boom section with different stiffness, although most sailors stick with a mid-range version. As a sailor grows, a stiffer boom may be preferred. If your mast is extremely bendy, it may also help to replace it with a stiffer one as experience and size merit.

How do you move an Optimist Dinghy around?

An Optimist weighs only 35 kilograms (77 pounds), which makes it easy to put on top of a car. There are also many trailering options; some teams own trailers that carry up to 18 boats, plus a coach boat!

How long does it take to rig an Optimist Dinghy?

Rigging time depends on how focused the sailor is on the task, but it’s not hard to have a boat ready in 40 minutes. What’s most time-consuming is attaching the sail to the spars, which in the Optimist requires tying knots in a way that’s carefully prescribed by the rules (see the North Sails Optimist Tuning Guide ). The goal is to match the luff curve with how much the mast will bend in a given condition, which varies depending on a sailor’s weight.

How many sails are allowed?

Top sailors will take two sails to a regatta, but just one sail is allowed for the duration of the event; the other is a backup in case of a breakdown. There is some nuance to selecting Optimist sails, but North presents a good choice of radial or crosscut sails of different size depending on the sailor’s weight. Read more about what North offers , from a crossover sail for beginners, to two crosscut and four radial-cut racing sails.

International Optimist Dinghy Tuning

What are the keys to rig set-up.

Opti sail set up

Properly eased outhaul tension shows wrinkles at each sail tie giving ample power to the lower part of the sail.

What control systems are unique to the Optimist?

Optimist sprit tension

A modest wrinkle from the top of the mast extending toward the end of the boom indicates correct sprit tension.

Optimist Dinghy Upwind Sailing

How do you trim the sail upwind in light air.

Opti sailing upwind

Shown sailing in a clinic (without sail numbers), these Optimist Dinghies show off the design’s distinct profile with sprit rig and squared off bow and stern.

When sailing in medium winds, how should the sail be trimmed upwind?

Move the mast rake back to your base setting when you move to the rail, and in choppy conditions, pull the outhaul tight enough so the vertical creases at the boom sail ties extend only up to the first seam. Smooth out the wrinkles in the luff by removing one twist in your boom preventer, so you achieve a round, deep nice shape for the entry. You want moderate luff tension, but you don’t want it tight. Trim the sprit so the sail is very smooth, and trim the mainsheet so the boom is right over the corner or just inside the corner of the transom.

In hiking mode or heavy air upwind, how do you trim the sail?

When hiking, rake the mast a bit forward from your base setting to compensate for how the mast will bend. Have your outhaul tight enough that a crease shows in the foot, until you fill the sail with wind. Take another twist off the boom preventer to get good tension on the luff. Sprit pole tension should still be tight and the sail, smooth. When trimming, ease the boom to the corner of the boat and sometimes just outside the corner.

When the Optimist is sailing upwind, overpowered, how should the sail be trimmed?

Optimist close up

Demonstrating good upwind sail trim, this Optimist sailor is flying her leech telltales and has the boom trimmed at or near the transom corner.

What are the key gear changes in an Optimist when sailing upwind?

The Optimist sailor’s focus when sailing upwind is primarily on body movement, mainsheet trim, and steering the boat. None of the sail controls are adjusted. When there are choppy conditions or a big wave, bear off and ease the sail to stay powered up. In a flat spot, trim harder to improve your pointing. Because the Optimist is a hard-chine boat, keeping the boat flat is critical—the boat makes leeway and the rudder works like a brake when you allow heel.

What else is important upwind?

One important technique to learn is “sailing and bailing.” Two buckets are attached to the boat with bungee cords, and the technique is to scoot aft and squeeze the bailer bucket between your front leg and the bulkhead, rocking the boat to windward to fill the bailer by feathering the boat up and hiking at the right time. Move your mainsheet and tiller extension to the same hand and use your free hand to toss the water in the bailer overboard. Don't forget that a full bailer of water weighs 8 pounds, which is quite a bit of weight working against you when it’s sloshing around the floor of your boat.

Optimist Dinghy Downwind Sailing

Where do you sit when sailing the optimist downwind.

Heading downwind, you always sit on the rail, heeling a little to windward to lift the leeward chine out of the water and to tilt the sail a little higher. In light air and until you’re surfing, stay forward, with your shins against the bulkhead. Effectively, you’re staying in the middle of the boat. In surf and big waves, move aft quite a bit to avoid submarining the bow under a wave and then move forward again. The amount of fore-and-aft body movement is greater in an Optimist than in some other singlehanders because the bow is blunt, so in waves you need to work hard to keep it above water.

How do you trim downwind?

Opti sailing downwind

This sailor’s downwind trim shows slight windward heel, mainsheet eased to 90 degrees, and daggerboard fully raised.

How much pumping of the main is fast downwind?

Pumping the main is fast any time there’s good wind and waves. Top sailors grab the sheet at the ratchet block and pump it by extending their hand up over their heads. You are allowed one pump per wave, and at major regattas there are on-water judges keeping count.

How do you shift gears when sailing an Optimist downwind?

Think about how far in or out you have the boom, and think about how much you should be moving fore and aft. In max light air, the daggerboard is up, the boom is out past 90 degrees, and you’re focused on keeping the boat as quiet and at as steady an angle of heel as possible. In 20 knots, it’s completely different—the board is only two-thirds of the way up, you are pumping on every wave, and you are moving all over the place.

Optimist Dinghy Boathandling

What are the keys to starting well in an optimist.

It’s important to get into the front row and hold your position on the line in advance of the start. It’s also key not to get flagged for sculling with your rudder. This takes practice, always keeping the boat moving but at the slowest speed possible. You want just enough flow across the leech of your main to hold your spot. The boats tack quickly, so we recommend that you learn to do a quick double-tack; sometimes when there’s space to windward, you can tack twice and gain valuable room on your lee side for acceleration.

What are the keys to tacking an Optimist well?

Optimist tack

Steering from behind your back, move what was your forward, mainsheet hand aft to hold the tiller extension as well, then bring your other hand around and take the mainsheet. In all conditions, over-trim the mainsheet when you start your tack until head to wind so you maintain flow on your sail, then ease it through rest of the process and finally trim the sheet afterwards, usually after the boat has been flattened. In medium air, you make the same move, but it happens faster and you’re moving from rail to rail. The main trim is the same. When it’s windy, you hardly roll the boat and simply move quickly across, grabbing the rail with one hand to get there. Ease the main during the tack once you pass head to wind and then trim when fully hiked.

What are the worst mistakes in tacking an Optimist?

Over-rolling the boat and filling it with water is easily the worst mistake. In light air, be sure not to use too much rudder. That’s slow, and so is not getting enough roll. We have one word to describe finding the right amount of roll for each condition—practice!

What are the keys to jibing an Optimist well?

In light air, keep it smooth. Have the boat rocked to weather already, then just lean in and grab the parts of the mainsheet, lean out, and pull the sail over. Stand up and walk across the boat to avoid a big splash, then transition to heel the boat again to windward. In medium winds, your roll jibe is the same but involves a quick hop across the boat (as you would in a tack). In heavy air, the jibe is different. Your main goal is “Don’t flip over.” Try to pull the boom across while surfing a big wave because your sail will be less loaded and you’ll be more in control; however, you’ll often find the boom still has enough load on it to require a strong pull. A common mistake is to get stuck—you’ve turned the boat part way, but the main is too loaded to come across. When you are ready to jibe, jibe with confidence by making a decisive turn at the same time that you pull the main over. As the sail comes over, cross the boat quickly to the rail and steer back to leeward on the new jibe. Make sure the main doesn’t get eased beyond 90 degrees as you jibe, or you’ll surely flip.

Do you have any other suggestions for jibing in heavy air?

The chicken jibe (also known as “tacking”) is popular when it’s blowing. If you’re a less-experienced heavy-air sailor and not sailing in the top 20, this is a great way to be sure you’ll stay in the race.

Can you recover on your own from capsizing an Optimist?

An Optimist sailor can “self-rescue” because the boat has three air bags. Make sure they are fully inflated so less water gets in the boat. If you flip, right the boat from the windward side and spend at least one minute standing in the boat and bailing hard with both bailers, which are attached to the boat with bungee cords. At that point you can start sailing and bail out the rest as you go.

What boathandling drills do you recommend?

Optimist dinghy leeward mark

The board is down and the main is powered up for the turn at the leeward mark. A bit of leeward heel would reduce the amount of rudder required.

What are the most common Optimist boathandling mistakes?

Let’s start with not capsizing. It takes practice to learn where the edge is in heavy air. Other mistakes we see include using too much rudder instead of doing smooth roll tacks and roll jibes. This applies to sailing in a straight line, too. For example, avoid using too much rudder downwind. If you start heeling to weather too much, the boat wants to head down. Instead of pushing the tiller to compensate, shift your body weight to leeward and trim the main.

What’s the coolest thing about the International Optimist Dinghy class?

The Opti class is by far the largest and most dynamic one-design class, in part because it has the most variables on the planet. Parents, coaches, and thousand of young sailors, growing up through a super-sensitive time of their lives. The basic strategies and tactics the class requires are a great outlet and an excellent way to learn the values of discipline and conservative decision-making. Whether you travel and learn about getting through airports and how to make friends in other countries, or you simply learn to take care of your own boat and sail on your own, Optimist sailing is a chance for you to learn a whole lot about yourself in a supportive, fun, rewarding environment. The Optimist is sailed all over the world and has a half dozen continental championships. After sailors age out, some go on to contend for Laser Radial and 4.7 world titles, and many become leading competitors in doublehanded classes such as the 420 and 29er. A final testament to the class: the great majority of skippers at the 2016 Olympics got their start in the Optimist class.

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COMMENTS

  1. Optimist Sailboat Build : 9 Steps (with Pictures)

    Step 1: The jig produced on the ShopBot retains the correct shape and supports the boat, while it is being built, to retain the exact design measurements. The plans for the boat can be found from many sources for free on the internet. Plans are available in many languages, as well.

  2. Wooden Optimist: Original Clearwater Plans

    This web page is dedicated to building an Optimist plywood pram to the specifications of the original Optimist Pram designed in 1947. We are using a set of plans redrawn by CABBS - Cleveland Amateur Boat Builders and available for $24.00. These wonderful little boats will never measure to the strict International Optimist Design.

  3. Optimist Dinghy Template Plans

    The Optimist Dinghy Template Plans contain the descriptions, materials and dimensions of each and every part, all drawn to scale, needed to build the boat. The plans of the auxiliary jig and temporary frames are also included. The plans are accompanied by a 28-page instructions booklet, with advice on materials and techniques, and a precise ...

  4. Optimist Club Racer

    Optimist Club Racer. Clark Mills designed the original Optimist Pram in 1947. His intention was to offer a simple boat that children could use to learn to sail and build themselves. We chose to name our version of the Optimist the "Club Racer" to reflect the original idea behind the design. The Club Racer is 99% the same as the epoxy/wood ...

  5. Optimist, fast and economic : Free plans

    Hi guys, i just decided to share my plans, www.boatyourself.com to download plans in 3d and cutting plans...This optimist is based on international optimist ...

  6. Wooden Optimist

    This web page is dedicated to building an Optimist plywood pram to the specifications of the original Optimist Pram designed in 1947. We are using a set of plans redrawn by CABBS - Cleveland Amateur Boat Builders and available for $24.00. These wonderful little boats will never measure to the strict International Optimist Design.

  7. PDF SPECIFICATIONS

    The Optimist was the natural choice as they wanted to compete against other clubs. After building an Optimist to the IODA standards in our shop, we realized it would be extremely difficult for an amateur (old or young) to build a boat which would comply with the hundreds of specs/standards.

  8. PDF Basic Opti Rigging

    Tie a small bowline in one end of the smaller of the two lines. Pass the other end downward through the block on the front of the mast. Tie the loose block onto the end with another bowline. Tie one end of the second piece of line to the bridge on the halyard cleat. Pass it through the block and down through the cleat.

  9. Optimist Sailboat Resources

    The Optimist sailboat, affectionately known as the Opti, is a popular and iconic single-handed dinghy designed specifically for young sailors. Renowned for its simplicity, stability, and ease of use, the Optimist has become a staple in youth sailing programs worldwide. With a distinctive pram-like hull and a single, sprit-rigged sail, this ...

  10. The CABBS Optimist Pram

    The CABBS Optimist is an excellent sail training platform and perpetuates the Optimist dinghy designer Clark Mills' ideal of offering youth a sailboat they could build with a minimum of hand tools and woodworking skills. The CABBS Optimist plans are available digitally as a PDF file. The file includes nine pages of construction drawings ...

  11. BlueJacket Optimist Pram Model

    The Optimist was designed in Clearwater Florida by Clark Mills in 1947. It is a simple and effective 7'-9" long sailing dinghy and over the years became one of the most sailed boats in the world! 150,000 of these have been registered and many more than built. The optimist has been used in 120 countries, and is a very popular youth training and ...

  12. OPTIMIST DINGHY (INT)

    Immensely popular youth trainer, designed for and built by a large number of home builders. The list shown here can only represent a small fraction of past and current professional builders. U.S. Optimist Dinghy Assn. P.O. Box 150127 222 E. Westmonte Dr. #101 Almonte Springs, FL 21401 407-774-7880 Fax: 407-774-6440

  13. Duckworks

    Opti-Plus: Stretching an Optimist. The spark that got me started in designing and building a stretched version of the Optimist sailing pram took place in my garage on a New Year's Eve about eight years ago. Several of us at our annual New Year's Eve party were out in the garage, drinks in hand, admiring myoid Optimist built about 1963 by a boat ...

  14. The Optimist Dinghy

    The wood/epoxy Optimist as a complete kit. Enter CKD BOATS. We were more than pleased to be asked to accept an order from the Knysna Yacht Club, which is a round 250 miles North East of Cape Town. The original minimum of five boats went to seven, then nine by the time we closed for the annual December holidays. ... The official plans arrived ...

  15. Meet the Optimist Dinghy

    Meet the Optimist Dinghy. December 4, 2013 by Sail1Design Editor Leave a Comment. by Airwaves writer Emma White. The optimist, originally designed by Clark Mills in 1947, became a registered One-Design boat in 1995; after a few modifications. It is roughly 8 feet long, precisely 3 feet and eight inches wide, and weighs approximately 77 pounds.

  16. How To Rig An Opti Sail: 6 Tips And Secrets To A Fast Rig

    Here's a look at six tips and secrets to your Opti Rig - it all comes down to setting a base sail shape for the conditions of the day.#opti_tv #optiworld #op...

  17. Optimist (dinghy)

    Optimist (dinghy) The Optimist is a small, single-handed sailing dinghy intended for use by young people up to the age of 15. The Optimist is one of the two most popular sailing dinghies in the world, with over 150,000 boats officially registered with the class and many more built but never registered. It is sailed in over 120 countries [1] and ...

  18. Optimist Sailing

    Learn the important fundamentals of Optimist Sailing. Pilo Rocha has been the Gold Fleet Opti Coach at LYC since 2016. Pilo grew up sailing Optis in Argenti...

  19. Optimist Buying Guide

    The Opti, or Optimist Dinghy, is relatively unchanged from the first prams designed and built by visionary Clark Mills in Clearwater, FL, 65 years ago. Testament to Mills' genius, the Opti remains the largest and fastest growing sailboat class in the world, a phenomenon as THE definitive teaching boat for hundreds of thousands of children the ...

  20. Optimist Dinghy (Int)

    Optimist Dinghy (Int) is a 2.3 m monohull sailboat designed by Clark Mills and built by Hartley Boats, Phileas Boats, La Prairie, Winner Boats S. L., Johnson Boat Works, SIBMA Navale Italiana, Performance Sailcraft, Far East Boat Co., Xtreme Sailing Products, McConaghy Boats, LaserPerformance, Nautivela, and Zim Sailing starting in 1947. Designer.

  21. How to Sail an Optimist: 6 Steps (with Pictures)

    4. Position yourself on the rail so that you are facing the bow (the smaller end) of the boat. Your front foot should be up against the bulkhead (the foot high separator halfway up the boat). 5. Get hold of tiller extension with the hand closest to the stern (back) of the boat and hold it as if it is a microphone.

  22. Wooden Optimist: Optimist Sail Plan

    This web page is dedicated to building an Optimist plywood pram to the specifications of the original Optimist Pram designed in 1947. We are using a set of plans redrawn by CABBS - Cleveland Amateur Boat Builders and available for $24.00. These wonderful little boats will never measure to the strict International Optimist Design.

  23. OPTIMIST DINGHY SPEED GUIDE

    The Optimist sailor's focus when sailing upwind is primarily on body movement, mainsheet trim, and steering the boat. None of the sail controls are adjusted. When there are choppy conditions or a big wave, bear off and ease the sail to stay powered up. In a flat spot, trim harder to improve your pointing.