Sail Boat Plans

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10-Ft. Sailng Dinghy (Pub. No. 5322)

by Alvin M. Youngquist, N. A.

Enjoy year 'round sailing with a craft that's the equal of an expensive professionally-built dinghy.
This wide-plank, lap seam sailing dinghy is also very serviceable as an all-purpose rowboat—for fishing, as a yacht tender, or small outboard motor boat. Because of the high freeboard its capacity is surprising—it will carry three adults with plenty to spare. Let the youngsters learn to sail in this able little craft. It can be set up for sailing in a very few minutes. A loose-footed jib-headed cat rig as indicated on the plans can be used, or a simple spritsail rig as shown in the photographs. No stays are necessary, and the hollow or solid mast is lifted out when not in use. The mast is stepped on a bearing so as to turn with the sail. It is equipped with an outboard wood rudder, and a ½" steel centerboard that can be easily lifted out.

6 pages, 4 plate(s)

Poco Dinero--A 20-Ft. Auxiliary (Pub. No. 5323)

Designed by John G. Hanna

There may not be any such thing as the perfect small sailpower cruiser for amateur builders, but "Poco" will do until it comes along! Twenty feet of real boat from the board of one of the nation's foremost naval architects: a man who has a genuine understanding of the problems an}d requirements of backyard boat builders.

If you are up on your SpaAish, you know that poco dinero (pronounced dee-nayro) means "little money." And that is the idea behind this design. It is intended to be built of the cheapest standard stock sizes of lumber, available anywhere, and with the least labor, and no specially difficult or skilled work required. It's not a "yacht." It's just plain old-fashioned boat, built on lines and principles proved good by many generations of use. It's tough enough to stand almost any bad-weather beating, and you can use it hard for years and years and still have a sound, tight ship. In brief, it's the bet for the conservative man who wants to put his few hundred bucks on a sure thing, and let George experiment with the newest models and latest inventions. There are loads of plans available covering all up-to-the-minute styles, and there is plenty of room on the seven seas for both you and George.

13 pages, 4 plate(s)

Thunderbird--A Racing-Cruising Sloop (Pub. No. 5325)

by Ben Seaborn, N. A.

This 26-ft. racing-Cruising sloop is a fine example of good design and proper application of materials.

If you've never before built a boat, this plan may at first seem discouragingly complex. It really isn't. Naturally a boat plan can't be as simple as a plan for, say, a bookcase. On a boat there are few straight lines. Parts curve up, down and sideways. And because many of these parts are rough-shaped, somewhat oversize and  trimmed to fit as they're assembled, boat drawings are hard to dimension precisely.  

20 pages, 9 plate(s)

Silverfin--A 20-Ft. Sailboat (Pub. No. 5330)

by C.P. and E.D. Burgess

This fast-sailing 20 ft. plywood sailboat has nice lines, was designed for a crew of three.

This fast sailing boat is to be built only of hot-pressed resin-bonded waterproof plywood on a frame of oak or ash. Be sure that every panel of plywood bears the grade mark "EXT-DFPA" which guarantees that it is manufactured to Bureau of Standards specifications for exterior use under the inspection of the Douglas Fir Plywood Association. All contacting surfaces should be glued together with waterproof marine glue, as well as screwed. By this construction you will - have a watertight hull that is far stronger and more enduring, as well as lighter, than any hull built by old fashioned methods out of materials available before the development of exterior type fir plywood.  

12 pages, 3 plate(s)

Corsair--A Gloucester Schooner (Pub. No. 5335)

by J.A. Emmett

A 42-ft. Gloucester schooner designed by IL I. Chapelle, that is fast and seaworthy, offers comfortable accommodations and is low in building cost.

The Gloucester-type fishing schooner, still popular in Nova Scotia today and years back along the New England coast, was used as a model for the lines and, rig of Corsair in order to meet a combination of rather unusual requirements. The first of these, ability and comfort in rough, water with a good turn of speed, are fairly common. However, the boat also had to have comfortable year-round living accommodations and yet be small enough for easy handling by a crew of two in summer cruising along the Atlantic coast. Added to these needs, was the fact that since the boat would be in constant operation, upkeep had to be low and any maintenance done by the owner. Most important of all, was the necessity of keeping the building cost as low as possible without sacrificing either the quality of materials or the construction. Now let’s take a look at the lines and body plan of Corsair Sand see what they’re like. They show a round-bottom hull with easy lines, graceful sheer and a long and well-shaped run that makes her fast for her size and type. Freeboard is high to keep the decks dry and the long, straight keel makes her an easy boat to hold to a course. The overall length on deck is 40 ft. 7½ in., beam 10 ft. 1½ in., the draft 4 ft. 10½ in. and displacement about 23,500 lbs. All ballast with the exception of an iron grounding shoe, is carried inside, fisherman fashion, and totals about 6 tons. Her rig is a typical gaff-headed, schooner type with 742 sq. ft. of sail area in the three lowers, divided up with 139 sq. ft. in the jib, 260 sq. ft. in the foresail and 343 sq. ft. in the main. Both of the solid masts are set up with lanyards and deadeyes in keeping with the period, and all sheets run aft to the cockpit for easy handling.

25 pages, 5 plate(s)

Victory One-Design, The (Pub. No. 5339)

An 18-ft. Racing Class with simple, all-plywood construction; designed by William F. Crosby, creator of the famous Snipe Class.

The primary purpose of a one-design racing class is to have all the competing boats as closely alike as possible so that the winning skipper finishes first, not because of finer hull lines or a more expensive craft but because of superior skill and seamanship. This is the most democratic form of sailboat racing and one that offers healthful relaxation to everyone of almost any age. For the youngsters or the beginners in boating, one-design competition is the finest training in mind and muscle that can be found. While the Victory can be used for day sailing or general knockabout use, you’ll get the most sport and find the boat at her best when she’s racing with others of her class. So show these plans to your boating friends, talk it up and get them interested in building a fleet of Victory’s. By building several boats at the same time, you’ll not only get more fun out of racing them but by combining orders for the materials you can reduce the cost considerably.

10 pages, 5 plate(s)

Frolic--A Cat-Rigged Sailing Dinghy (Pub. No. 5342)

A cat-rigged sailing dinghy, 11 feet overall, that makes an ideal boat for the beginner.

Learning the principles of sailing is much easier in a small boat like Frolic than in a larger sailboat. Not only is she more responsive to wind and rudder but her simple cat rig requires a minimum of handling and makes it possible for the budding sailor to get the “feel” of his boat much faster. On the practical side, the elementary plywood construction of the dinghy makes her a natural for the amateur builder and equally important keeps the total cost at a low figure. Now let’s see what the plans have to offer. They show a V-bottom hull that’s easily planked with plywood, and a high narrow rig with 77 sq. ft. of sail that makes the boat ideal for lake sailing in protected waters. She definitely isn’t a rough water boat as the rig is too high and the lack of side decks would make capsizing under heavy wind and sea conditions a dangerous possibility. The use of a metal centerboard is a “must” to insure good stability. The heavy board acts as ballast and makes it possible to drive the dinghy to windward in moderately heavy winds.

7 pages, 4 plate(s)

Sinbad--An Auxiliary Cutter (Pub. No. 5346)

by William F. Crosby

A modern 29-ft. auxiliary cutter that's fast and seaworthy; has berths for five, ful headroom.

Cruising in many small auxiliaries far too often means trying to sleep in berths designed for a midget and remembering not to crack your head on the cabin carlins when you stand erect. And yet as the accommodations and plans of this attractive cutter amply prove, there’s no reason why you can’t enjoy most of the comforts of home when you spend a weekend or a vacation afloat. Though she’s only 29 feet overall, this modern cruising boat will sleep five persons in comfort on full-length berths and there’s a clear six feet one inch of headroom throughout the house, plus complete galley and toilet facilities. The beam is ten feet one inch and with everything aboard, the boat draws about four and a half feet of water. Because of the inherent stability of the V-bottom hull, only 1,000 pounds of outside ballast, in the form of a lead or iron keel, is required. With a few hundred pounds of additional inside ballast placed right, the hull will come down to the designed waterline and trim evenly. Sinbad has a sail area of 376 sq. ft. in an easily-handled rig. The power installation is a Universal Model AFT, direct drive, 10 hp. engine, weighing 345 pounds. However, any similar engine of the same size and weight may be used.

16 pages, 5 plate(s)

Tern--A Knockabout Sloop (Pub. No. 5349)

An 18-ft. knockabout sloop with a simple, sharpie-type hull and low building cost.

For day sailing or short cruises on protected waters, this smart and able sloop is ideal for the man who’s building a boat on a limited budget. Because her hull lines are taken from those of the Chesapeake Bay Sharpie, she’s about the easiest and cheapest craft that can be built without sacrificing sound construction and good sailing qualities. Like the Sharpie, she’s flat bottomed and as easy to frame and plank as a skiff, and with the centerboard up only draws about 10 inches of water. The large cockpit will hold a good-sized party on day trips and for a couple of young fellows who don’t mind a few minor discomforts, the small cabin provides snug shelter for overnight or week-end cruises. The rig is of the knockabout type with 157 sq. ft. of sail that will drive the boat reasonably fast when she’s sailed slightly heeled, as all sharpies should be handled. While no engine has been shown on the plans, there’s no reason why a small aircooled inboard couldn’t be installed aft of the centerboard trunk and a shaft and propeller fitted at the end of the skeg.

10 pages, 2 plate(s)

Here's Falcon--A 14-Ft. Sailboat (Pub. No. 5358)

by W. D. Jackson, N.A.

If you want an unusually sturdy and fancy sailboat, try building this 14-footer. Costs are quite low too.

Falcon is a small, speedy, sporty sailboat which handles well. Our tests on the original Falcon showed that she could hold boats of comparable size.

10 pages, 3 plate(s)

Family Boat Anyone Can Build (Pub. No. 5360)

By Cecil Boden, N.A.

Carol is an attractive 12-footer with a flair for fishing, speeding and sailing.

Every family with a few dollars to invest, and some spare weekends, should have a Carol. She’s a 12~ ft utility skiff which will appeal to fishermen and familymen who want something suitable for outboard motors up to 18 hp. Top speed is in excess of 20 mph with an 18 on the transom, while a tiny 3 hp motor will push her along at almost 8 mph. This boat’s hull has been designed to run efficiently over a wide range of speeds and, while safety will be reduced, can handle larger motors than 18 hp. Deep transom is designed for long-shaft models. The details of this good looking boat have been carefully checked and anybody can build from the plans that appear on these pages. There’s no “boxy” look about this craft—characteristic of many simplified designs—yet if the plans and instructions are followed it should go together easily. Carol is very stable and is ideal for family picnics, fishing and general use, or as a children’s sail boat. The bottom and sides are of 1/4-inch marine grade plywood. If the boat is to be kept in the water, it would pay to sheath the bottom in fibreglass cloth. This will keep the worms away and all you need do is antifoul the bottom twice a year.

7 pages, 4 plate(s)

Flying Ant--A 10-Ft. 6-In. Racing Dinghy (Pub. No. 5362)

by Chris Howe

Designed by John Spencer, this l0ft 6 in. racing dinghy sails as well as it looks.

Designed by John Spencer, of Cherub fame, the Flying Ant is an excellent, high performance, junior trainer, Originating in New Zealand, the design took on in Western Australia, but rigid restrictions and a high minimum weight led Sydney enthusiasts to tinker with the specifications. As now sailed with Middle Harbor 16 ft Skiff Club, the Sydney Flying Squadron and Georges River SC, the boats deviate from the specifications, especially in the sail area of spinnakers. Northbridge Sailing Club, concerned to foster a more restricted class, drew up a set of restrictions and called the class “Lightweight Flying Ant”. The net result of this is the original Flying Ant hull shape and working sail plan, optional cockpit arrangements and rigging a minimum weight of 80 lb, and a restricted spinnaker areas.

15 pages, 3 plate(s)

Fireball (Pub. No. 5364)

by Peter Milne

Here are the full building instructions of probably the easiest-to-construct, really fast, racing machine yet produced.

The Fireball was second in Yachting's “One-Of-A-Kind” Regatta beating the 505 boat for-boat. It is destined for International recognition. Before any small boat enthusiast undertakes the building of his own boat he must be confident in some small measure, of his ability to handle a plane and panel saw—if he shies at the thought of putting up a kitchen shelf, then boatbuilding is just not for him. Fireball, however, does not call for much in the way of boatbuilding skill and all the steps in her construction have been reduced to simple carpentry. Right from the beginning the following code has been kept firmly in mind: (a) Cut to a minimum all jobs requiring two pairs of hands; (b) All joints to be as simple as possible; (c) The fairing up and fitting of the skin to be straightforward.

20 pages, 1 plate(s)

Australia's Rainbow (Pub. No. 5365)

by I. Campbell and S. E. Hills

Few boats are easier to build than the 12-foot Rainbow.

It is Tasmania’s most popular class and is sailed in Victoria, South Australia and Western Australia as well. In the early 1940s H. J. Hill of West Australia believed that he had the answer to the VJ. He designed and built a 12 foot craft that was simple in design, light, and fast to sail. Today it is the strongest class sailing in Tasmania and South Australia, is very prominent in Western Australia and is becoming popular in Victoria and New South Wales.  The Rainbow excels itself on the planing run where the flat bottom design allows it to take full advantage of its considerable sail area which is 90 square feet of working sail plus a 70 sq ft spinnaker. This scow is fast on all points of sailing. It is sailed on its chine in true scow fashion and this has the effect of reducing pounding and lengthening the waterline. These qualities combined with the ease of building has made the Rainbow a very popular class. Watertight bulkheads make the boat safe. Venturis bail the boat dry in a matter of minutes after a swim. This feature makes it a safe boat for youngsters. The Rainbow is fitted with a 4 ft 4 in. centreboard made of timber which is 1 ft 2 in. wide. The trapeze gives it good stability. Length is 12 feet, beam 3 feet 10 inches with a maximum depth of 1 foot 31 inches. Minimum weight is 120 lb.

8 pages, 2 plate(s)

Catboat for the Youngsters, A (Pub. No. 5369)

By Edson I. Schock

Well within the ability of the amateur, this tested little cat will prove a lively answer to the man who wants sailing action. Simple, inexpensive, she is an ideal project for that father-and-son sailing crew you have been dreaming of.

This is an ideal boat for children. She is about as safe as a small sailing boat can be, yet is well balanced and reasonably fast, in competent hands. She will carry four people comfortably in her roomy cockpit, and there is space under the deck for lunch, sweaters, and life preservers. Construction has been made simple to keep her well within the ability of the average amateur to build. She should always have a good resale value, if well built, as boats of this type are always in demand.

8 pages, 5 plate(s)

How to Build Gull--A 12-Ft. Glass Racing Dinghy (Pub. No. 5373)

by Charles Bell

Gull is a sweet little 12-foot racing dinghy but she is still quite a ship, has plenty of stability and enough freeboard to take rough stuff. She’s all fiberglass, even the mast, and is designed for all-around service as well as racing. She will do very well with one of those mighty-mite outboards, she will row and tow well and her double bottom makes her unsinkable.    The usual swelled centerboard trouble will never plague Gull because her centerboard as well as her trunk is fiberglass. The centerboard is not raised with a cable, but is adjusted with a folding rod that will stay at any point where there is an adjustment notch, and locks in any position. And Gull is simple to build, even for the unskilled workman who would ordinarily shrink from the precise joiner-work required to build a fine racing sailboat. Every effort has been made to help her prospective builders, including an inexpensive papier-mache mold from which one, or several boats can be molded. These molds are ideal for clubs and groups of individuals who wish to start a racing class.

21 pages, 4 plate(s)

Rebel--A One-Design Racing Class (Pub. No. 5374)

by Charles Cox

Rebel, an eighteen-foot centerboarder, is just about the best all-around size for a small boat. She is small enough to be easily and cheaply serviced and yet large enough to carry a party of four comfortably. Although designed primarily for one-design racing, she still possesses all of those excellent qualities which make a successful day-sailer. Rebel is 18 feet 4 inches overall, 14 feet 8 inches on the waterline, and 6 feet in breadth. With her centerboard raised, she will draw only 754 inches of water and, with it lowered, will draw 3 feet 6 inches. Much time and thought were given to her construction, which is healthy but not excessive. The centerboard well in particular was carefully designed because it can be the main source of trouble in this type boat. Rebel’s rig is a simple, but effective, modern sloop rig, designed with enough sail to make her fast, yet still suitable for open water and rough weather. The rig allows for a combination of mainsail and Genoa jib or mainsail and working jib, this being done to make her a good all-around boat, suitable to localities where the weather permits sailing not only with the light winds of summer, but also with the heavy breezes of fall, such as on Chesapeake Bay. The area of her mainsail is 100 square feet, Genoa, 66 square feet, and working jib 48 square feet. Although Rebel is a chine boat, her appearance is most trim and pleasing, and the chine construction simplifies the building considerably and is not detrimental to speed. Rebel’s construction is simplified further by the fact that none of her planks have such severe twists as to require steaming.

10 pages, 5 plate(s)

Midget--A Boat for the Midget Ocean Racing Club (Pub. No. 5375)

by Edward R. Weber

Midget is designed to be one of the smaller boats under the MORC rule, with an overall length of only 20 feet. Thus her proportions affecting costs are such that many will be able to build or buy her who could not aspire to a 24-footer. Her hull lines and profile under water follow proved form, with a trend toward the old and proved rather than the new and rare. The profile underbody is long and full, with a real grip on the water, able to hold a course without yawing or broaching, easy on the helm and most seakindly. With a view to keeping costs down initially as well as later in upkeep, there is a trend toward lightness in her lines, which will also permit speed provided the boat is not burdened with too much weight from equipment and gear. This lightness gives long sailing buttocks and a clean run, little wake and a boat on which one can leave the helm for short periods to tend to other duties. Short fin keelers and centerboarders can claim speed and maneuverability but in a sense must be likened to a tricycle that can be spun in its own length, yet a one-wheeled unicycle that needs constant attention to keep her on course and driving ahead. Thus this “old-fashioned” profile suits the seas, it meets the cruising needs and will be a real racing companion and as valuable as an extra crew member. Space below on Midget is secured through the use of high freeboard and a straight sheer. These give her a modern look above water, following recent trends. At the same time, they have the necessary amount of boat below them to give proper balance. When one has a skimming dish type of hull, with modern high freeboard, then one has little control, but Midget has a blending of the modern in space and looks, and the old in ability and performance. There is 4-foot 5-inch headroom below—more than most 24-foot sloops of normal proportions. And if one looks her over, from plan to plan, he will note that she has a pertness and pleasing appearance despite the sacrifices made for the sake of interior space, comfortable sleeping and galley accommodations. One great advantage Midget has, as drawn, is the ability to sleep a third hand. Very often it is necessary to cruise a small boat such as this with three aboard, possibly to sleep three before a race or just after a particularly tiring race. It will be seen that by clearing off the galley and toilet tops one additional person can sleep athwartships in a sleeping bag or on an air mattress. Crowded? Yes, but necessary at time, and it is mighty seldom one cruises on a 20-footer that can sleep all three of her racing crew! For hatches there are the hinged forward hatch, a sliding companionway and two access hatches in the aft deck for the stowage space there. The forward hatch is a valuable safety factor and useful for stowing headsails or handling ground tackle. The arrangement plan shown provides for a completely watertight, self-draining cockpit, without even openings in the seats. Stowage under the seats is reached from the aft hatches or from the interior.

15 pages, 9 plate(s)

Inexpensive Little Cruising Sloop of 21' LOA, An (Pub. No. 5376)

by WM. H. Oehrle

A friend of mine, a young fellow who likes boats, came to see me for a bit of advice. He had owned several second-, third-, and fourth-hand boats, but what he was able to get for the amount he could spend always seemed sadly in need of major repairs. He wanted to know if it would be possible to build a small sloop, large enough to accommodate two on cruises of two-weeks duration, and four for afternoon sails, for about wbat a small auxiliary cost on the used boat market. I thought it could be done, provided he was willing to build a type of hull that did not require too much labor, nor bright finish, so he amplified his requirement. He would want a keel boat, because a centerboard trunk takes up too much room in the cabin of a smal boat, but still did not want the draft to exceed three feet in order that two of the small island harbors in Narragansett Bay could be entered at all stages of the tide. He did not want an inboard en gine, though admitting their advantage, but would use an outboard for auxiliary power. He wanted a smart sailer, a boat that would be fun to sail, but not a racer. After some discussion and argument the boat was designed built and tried out. She has proved to be the solution to his boat problem, and I offer her plans to you as a suggestion toward solving yours. Several small changes have been made wherever such changes would improve the boat without increasing her cost. The hull form is such that she sails at a good angle of heel though during the past summer she never took water over her lee rail. The beam has been purposely kept near the minimum for a cabin boat, and her forward sections are quite sharp compared with most other small cruisers. I would not advise increasing the beam to give more initial stability as it would ruin her performanc to windward in choppy water. On the boat already built the builder made a pattern for the lead keel and then cast it in iron. The resulting difference in outside weight (about 300 pounds) has an appreciable effect on her stability. The dimensions for both iron and lead keel are given; use either one but don’t try to mix them.

19 pages, 4 plate(s)

Gulf Coast--A 20-Ft. Centerboard Double-Ender (Pub. No. 5393)

Designed by Edward R. Weber

Gulf Coast is a double-ended centerboard sloop, to be built of plywood. She measures 20’ x l5’ó” x 6’71/2” x 5” draft and carries 175 square feet of sail

Winds are strong down on the Gulf and the barometer is often taking those exciting plunges which bring along endless foaming breakers from over Mexico way. Rain squalls drive in and small boats seek haven in the bayous and inlets where, from protection, one can hear the storm whistling overhead. Days during the summer are often as not enlivened with quick thrusting storms and squalls which back up against the wind and drive down rain in powerful gusts. The detested North winds that sweep down with heat and continue for days are known actually to drive water out of certain harbors. In the inlets and bayous are underwater stumps of old cypress and the water is never deep except over springs and in the channels. Along the coast proper are long chains of low sand islands and bars lying awash in blue Gulf water and hot sun. For such sailing grounds—among the best in the world—special types of yachts and boats are needed. Motor yachts with more than usual ventilation and little draft, insulated and able to stand heavy weather in the chop and steep seas the shallow waters develop. Sailing yachts need the ability to carry huge spreads of canvas and still shorten down quickly to storm rig. The South has many latent powers and possibilities—among the greatest are her shipping, fishing and yachting—and the day is here when the South can demand and get the boats she needs for her special needs and conditions. This little sloop, Gulf Coast, was designed with many of the foregoing needs in mind. She is double-ended and therefore easy to handle in a following sea or quartering chop. Her beam is ample for great stability and her bottom is broad for planing ability downwind. The rig is tall, with an aspect ratio of nearly three to one, getting that area up where it is needed on light days. When gusts snap down she will not be overpowered nor difficult to handle and the rig is always efficient. Sail can be shortened down to a reefed main of 73 square feet or jib alone of 62. She carries a spinnaker and genoa for that zesty racing all modern sailormen love. The draft is but five inches with the centerboard up and rudder tilted, allowing her to be sailed right up to the sandy beaches and over shallow bars. Construction is made V-bottom of plywood and utilizes the native pines to a great extent. Length is 20 feet l01/2 inches overall including rudder, 20 feet on deck, 15 feet 6 inches waterline and 6 feet 71/2 inches beam. The lines show her flare forward which is carried well aft for dryness in a chop. The after bottom is nearly flat and she nossesses great reserve stability.

16 pages, 2 plate(s)

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