Optimist Sailboat Build

license

Introduction: Optimist Sailboat Build

Optimist Sailboat Build

Attachments

optimist 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.

optimist sailboat plans

Recommendations

DIY Solar-Powered Emergency USB Charger for Camping and Hiking

Outdoor Life Contest

Outdoor Life Contest

Microcontrollers Contest

Microcontrollers Contest

Woodworking Contest

Woodworking Contest

July / August Issue No. 299  Preview Now

optimist sailboat plans

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

ACCESS TO EXPERIENCE

Subscribe today.

Publishing dynamic editorial content on boat design construction, and repair for more than 40 years.

1 YEAR SUBSCRIPTION (6 ISSUES)

Print $39.95, digital $28.00, print+digital $42.95, from plans & kits.

The Norwegian Sailing Pram.

Norwegian Sailing Pram

Newt

Viola 14 Sailing Canoe. Dinghy stability with canoe compactness

optimist sailboat plans

From the Community

Handmade wooden canoe

Handmade wooden canoe

Beautiful hand built wooden canoe. Design modeled on the Wabanaki Indian canoes of Maine.

1929 Hacker Craft Runabout 18'

1929 Hacker Craft Runabout 18'

Jimmy Steele Peapod

Jimmy Steele Peapod

Good Vintage Boat - Hull Number 66 - Completed In 1989.

Boats Plans and Kits

Bullet flyer

Switzer Bullet 136

row trolling boat plans

Rabu, 12 juli 2017.

  • optimist sailboat building plans

optimist sailboat plans

Plans were freely available as i could not afford the expensive grp boats and there was little point in building a plywood the rsa optimist. Using plans from the cleveland amateur boatbuilding and building a plywood optimist pram (dinghy) - part 4 building the plywood optimist pram. How to build an optimist how hard can it be, there’s only five bits of book building a different way to the plans? anyway, having done a lot of correction to.

The Optimist Pram - 1948 version

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. The optimist is a small, single-handed sailing dinghy intended for use by children up to the age of 15. nowadays boats are usually made of fiberglass, although wooden. Welcome to the official website of the international optimist dinghy association. contact; home ; events ; news ; multimedia ; class info ; press office ; store.

0 komentar:

Posting komentar.

optimist sailboat plans

Blog Archive

  • ►  Januari (36)
  • ►  Desember (180)
  • ►  November (186)
  • ►  Oktober (22)
  • ►  Februari (32)
  • ►  Januari (239)
  • ►  Desember (334)
  • ►  November (245)
  • ►  Juni (1)
  • ►  Desember (96)
  • ►  November (107)
  • ►  Oktober (114)
  • ►  September (159)
  • ►  Agustus (90)
  • free boat plans svensons
  • build your own viking boat
  • how to build a working motor boat in minecraft
  • wooden boat plans for beginners
  • plywood boat plans 1 sheet
  • build your own pontoon boat trailer
  • model boat building clubs
  • free boat plans tdem
  • sailboat monogram design
  • arch davis design boat plans
  • harris boat dock construction
  • whitewater center build your own boat
  • build your own boat headers
  • wood boat plans for sale
  • sheet plywood boat plans
  • catamaran sailboat floor plans
  • plywood catamaran boat building
  • catamaran motor boat plans
  • wood race boat plans
  • australian aluminium boat plans
  • plywood motor boat plans
  • plywood flat boat plans
  • harris boat dealers in ontario
  • speed boat plans free
  • how to make model boat railings
  • how to make a model tug boat
  • farrier boat plans for sale
  • diy wooden model boat
  • build your own dragon boat
  • wooden power catamaran boat plans
  • harris kayot deck boat reviews
  • boat building plans aluminum
  • flat boat plans
  • how to make a wooden model boat from scratch
  • how to make a motor boat with remote control
  • how to build a model boat kit
  • free plywood boat plans download
  • how to build a model ship (chris craft constellati...
  • flat bottom wood boat plans
  • build your own pontoon boat kit
  • small catamaran boat plans
  • free rc catamaran boat plans
  • traditional wooden boat plans
  • build model boat recycled materials
  • free plywood boat plans net
  • hacker wooden boat plans
  • aluminium tinny boat plans
  • flat skiff boat plans
  • aluminium boat designs plans free
  • fishing boat plans and kits
  • rc model boat plans free download
  • dragon boat plans for sale
  • build scale model ship
  • power boat plans and kits
  • how to make a motor boat that moves
  • sailboat plans uk
  • build your own jet boat
  • vintage wooden boat plans
  • mystic seaport small boat plans
  • how to build a model boat in a bottle
  • houseboat plans and kits
  • model boat kits plans
  • wood boat plans dory
  • how to build a boat motor stand
  • how to make model boat out of cardboard
  • sailing catamaran boat plans
  • genesis rc boat build
  • small boat plans free
  • harris flotebote
  • how to make model pirate ship
  • aluminium ski boat plans
  • simple boat plans free
  • harris boat works address
  • build your own metal boat
  • small boat planter
  • boat hanging planter
  • cruiser boat plans free
  • build your own rc boat trailer
  • ►  Juni (139)
  • ►  Mei (157)
  • ►  April (111)
  • ►  Maret (75)
  • ►  Februari (64)
  • ►  Januari (66)

Web Analytics

10% Off Hobie Parts / 15% Off Rigging / 10-15% Off Select Kayaks - SHOP NOW

West Coast Sailing

  • Call Us +1-503-285-5536
  • Sign in & Register
  • Recently Viewed

Optimist Resources

optimist sailboat plans

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.

Subscribe To Our Newsletter

Sign up for our newsletter to receive exclusive discounts, new product announcements, and upcoming sales.

The Worldwide Leader in Sailmaking

  • Sail Care & Repair
  • Sailing Gear
  • Find A Loft
  • Sail Finder
  • Custom Sails
  • One Design Sails
  • Flying Sails
  • New Sail Quote
  • 3Di Technology
  • Helix Technology
  • Sail Design
  • NPL RENEW Sustainable Sailcloth
  • Sailcloth & Material Guide
  • Polo Shirts
  • Sweaters & Cardigans
  • Sweatshirts & Hoodies
  • Accessories
  • Summer Sale
  • Shop the look
  • Mid & Baselayers
  • Deckwear & Footwear
  • Luggage & Accessories
  • Spring Summer '24
  • North Sails x 37th America's Cup
  • Sailor Jackets
  • SALT X North Sails
  • NS x Slowear
  • T-shirts & Tops
  • Sailor Jacket
  • Sustainability
  • North Sails Blog
  • Sail Like A Girl
  • 37th America's Cup
  • Icon Sailor Jacket
  • Our Locations
  • Certified B Corporation
  • North SUP Boards
  • North Foils
  • North Kiteboarding
  • North Windsurfing

SAIL FINDER

SAILING GEAR

COLLECTIONS & COLLAB

COLLECTIONS

WE ARE NORTH SAILS

ACTION SPORTS

Popular Search Terms

Organic cotton

Scuba fleece

Drawstring hood

Utility pocket

Stand collar

Sorry, no results for ""

Subscription

Welcome aboard.

We want to make our emails as relevant as possible for you.

Interests saved

Something went wrong, please try again

Welcome to North Sails

Stay up to date with the latest North Sails news.

Receive a 10% discount code for your first apparel order. Excludes sails and SUP’s. See our Terms and Conditions .

Yes, I agree to the terms of use and privacy policy.

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.

GET IN TOUCH

REQUEST A QUOTE

BROWSE ALL SAILS

FIND YOUR SAIL

Featured stories, meet the fresh faces of america's cup design, the long life of a north sail, ntg adds best-in-class sailmakers to its roster of brands.

  • Refresh page

Browse by Category

  • Coach of the Year
  • High School Sailing Team of the Year
  • Optimist Sailor of the Year
  • Sailing Fitness
  • Regatta News/Results
  • Boat Speed/Tuning/Sailtrim Articles
  • General Sailing News
  • Coaches Locker Room
  • From the Experts
  • Profiles in Pro Sailing
  • Featured Jobs
  • Marketplace Ads
  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Sail1Design

First Name*

Email Address*

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

            

Reader Interactions

Leave a reply cancel reply.

Your email address will not be published. Required fields are marked *

By submitting this form, you accept the Mollom privacy policy .

optimist sailboat plans

One Design Classes

Browse the airwaves.

  • Sailing News Articles
  • High School & College News Articles
  • One-Design Class Profiles
  • Tactics & Strategy
  • Sailing & Education
  • ICSA Rankings
  • Sailing/Yacht Club Profiles
  • Youth Sailor of the Year
  • Sail1Design Annual Awards

Helpful Links

  • Join the S1D Team
  • Accessibility Help
  • Privacy Policy
  • Entries feed
  • Comments feed
  • WordPress.org

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:

  • Sofala, A Big Little Ship
  • Oil Changes
  • Do Yachts Need to be so Expensive?

Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.

  • Sailboat Guide

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

Embed this page on your own website by copying and pasting this code.

Discover Related Sailboats

optimist sailboat plans

United States Sailboat Show 2019

The sailboat show in Annapolis runs Oct 10—14, 2019, and features over 130 sailboats, including the premiere of 30 models over 30 feet.

  • About Sailboat Guide

©2024 Sea Time Tech, LLC

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

- TRUE GAME CHANGER

optimist sailboat plans

Our main goal was to design extremly fast and dry boat… the results surpassed our highest expectations.

The ultimate optimist boat, fighter dinghy.

optimist sailboat plans

Why is the boat so fast and dry at the same time?

This design embodies our deep understanding of the Optimist rule space. An aggressive approach to maximize the benefit of moving crew weight longitudinally both upwind and downwind helps the boat to pinch through waves and get in planing mode much faster. 

The concept has already proven unrivaled performance across a broad range of conditions; able to perform well in light flat waters and windy high seas.  

optimist sailboat plans

Fighter is a new line of products, which was born out of the passion for Optimist sailing.

optimist sailboat plans

Fighter Optimist Dinghy Boat Full Set

optimist sailboat plans

Kit: Fighter Foils Pro Rudderblade + Tiller + Extension

optimist sailboat plans

Kit: Fighter Foils Pro Rudderblade + Daggerboard + Tiller + Extension

optimist sailboat plans

Daggerboard Fighter Foils Flex

Daggerboard fighter foils medium, express shipping.

across European Union & UK.

COMPETITIVE PRICES

and payment options.

HIGHEST QUALITY

of products and services.

CHOICE OF THE BEST

Optimist sailors and coaches.

optimist sailboat plans

Trusted by Champions from

Check also:.

optimist sailboat plans

Product Enquiry

  • Mobile Number *
  • Enquiry Details *
  • Captcha * What's 13 - 8 =

Wooden Optimist

Building the Clark Mills Plywood Optimist Pram

  • Clark Mills
  • Plans: Rudder 1954

Original Clearwater Plans

  • Optimist Sail Plan
  • Opti Stories
  • Optimist Videos
  • Virginia Beach Project
  • Copenhagen Project

optimist sailboat plans

IMAGES

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

    optimist sailboat plans

  2. Optimist Sailboat Build

    optimist sailboat plans

  3. Optimist sailing dinghy building plans ~ Easy canoe

    optimist sailboat plans

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

    optimist sailboat plans

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

    optimist sailboat plans

  6. Canoe building plan: Here Optimist sailing boat plans

    optimist sailboat plans

COMMENTS

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

    Optimist Sailboat Build: Building the Wood/Epoxy Optimist In 1947 a gentleman named Clark Mills designed a small sail boat for kids to learn to build and sail called the Optimist.  This boat was designed to be built from 3 sheets of plywood, with basic woodworking abi…

  2. 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 ...

  3. 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 ...

  4. 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.

  5. PDF International Optimist Dinghy Association

    International Optimist Dinghy Association OPTIMIST SAIL PLAN INDEX 1/5 General dimensions 2/5 Material, reinforcements and batten-pockets 3/5 W indow, tabling, bolt-ropes and eyelets 4/5 Sail numbers, insignia and button 5/5 Positioning measurement band ALL MEASUREMENTS IN MILLIMETRES DIAGRAMS NOT TO SCALE.

  6. 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 ...

  7. 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 ...

  8. PDF How To Build An Optimist

    In order to take part in Optimist races you will have to join IOCA UK for £25 per year, and make sure the boat is insured, about £27 per year, and don't forget to keep the annual buoyancy test up to date. The total for paperwork then is £98. So we now have a tidy new boat, called Skylark, that is measured and on the weight limit, all that ...

  9. 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.

  10. optimist sailboat building plans ~ row trolling boat plans

    Optimist sailboat build. The sabot (in all versions) is an 8 ft. long pram dingy with a shallow. 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. The optimist is a small, single-handed sailing dinghy intended for use by children up ...

  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 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 ...

  13. OptimistSailPlan PDF

    This document outlines the specifications and dimensions for Optimist sail plans according to the International Optimist Dinghy Association in 5 parts: 1. General dimensions of the sail including length, width, and diagonal measurements. 2. Requirements for materials, reinforcements, batten pockets and ply thickness. 3. Details on windows, tabling, bolt ropes and eyelets. 4. Placement of sail ...

  14. Wooden Optimist

    Published on Feb 8, 2014 This is the first of three Optimist dinghies we are making from CABBS (Cleveland Amateur Boatbuilding and Boating Society) plans. The plans have been redrawn from Clark Mills original drawings for the Optimist in 1947. Check out www.woodenoptimist.blogspot.com to see more about building this sailboat.

  15. OPTIMIST DINGHY SPEED GUIDE

    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 ...

  16. 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

  17. Meet the Optimist Dinghy

    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 ...

  18. Duckworks Magazine

    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.

  19. Optimist (dinghy)

    Optimist Fleet of Optimists Typical Optimist storage Rigging on shore Optimist dinghies waiting to a wind. 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.

  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.

  21. Optimist Pram plans and building questions

    Share. Tweet. #1. Optimist Pram plans and building questions. 07-19-2006, 10:41 PM. I am looking to build an Optimist Pram with a few dads. The goal being that if each of our kids had the same boat as they use in sailing school they would be more likely to go out and sail together.

  22. Fighter

    This design embodies our deep understanding of the Optimist rule space. An aggressive approach to maximize the benefit of moving crew weight longitudinally both upwind and downwind helps the boat to pinch through waves and get in planing mode much faster. The concept has already proven unrivaled performance across a broad range of conditions ...

  23. 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.