Power Boat Plans

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Building a 25-Foot V-Bottom Cruiser (Pub. No. 5436)

Probably the best thing to do first is to lay the boat down full size—that is, such part as the frames with floors that connect them: the stem, stemson, keel, stern post, shaft log, stern transom and rudder; the figures for doing this are given on the offset sheet and keel plan. If a floor sufficiently large to take the whole boat cannot easily be obtained, different parts of the boat may be laid down separately on a small floor or on, piece of paper. For instance, the stem, frames transom, rudder, etc., can be laid out on separate pieces of paper; so, also, the keel can he laid out on a long, narrow piece of paper.

20 pages, 5 plate(s)

$9.95
How to Build a 22-Foot V-Bottom Runabout (Pub. No. 5437)

Generally speaking, the building of a motor boat is a bigger proposition than an amateur should tackle single handed unless he has plenty of time and patience to give it, and unless he happens to be a good mechanic, he is liable to make a poor showing for his pains, for the building of the launch requires skill and knowledge that can not be gained even from the reading of the best articles on” How to Build.” And so it would seem wise to select the least difficult type of boat and make a creditable job and this, too, with less expenditure of labor and material. This not only applies to the amateur builder but also to those building boats for a living, for it is evident that if an equally good, boat can be built for a smaller expenditure of labor and material, it can be sold for less, and other things being equal, price talks. The type of boat described herein is a type too well known to need many comments, as it has been used for years along the coast for the roughest kind of work being an ideal sea boat, but it is only of late that it has come to its own in the motor boat field as a pleasure or racing proposition; and a good part of the credit for this is due to Mr. Hand, who has been experimenting with it for a good many years; and has turned out boats along these lines, that could show their sterns to their round bottom brothers of equal size and horse power without any undue exertion. The general dimensions of the boat are length over all, 22 feet, beam 4 feet 7 inches.

Note: What a great little boat this is and what a fine showing she would make at antique boat rallies. Note the large steering wheel, the searchlight, and best of all--the whistle! With a little tank of compressed air for the whistle, some brass polish on the searchlight and some mahogany, she would be the talk of the marina!

16 pages, 5 plate(s)

$8.95
How to Build a 20-Foot Knockabout (Pub. No. 5438)

When working up the design of this little craft the intention was to produce a capable, seaworthy boat, able to stand its share—and more—of bad weather, and at the same time to be an easy and inexpensive boat to build and maintain. A glance at the plans w111 show the flat dory keel, which dqos away with much of the framing and fitting necessary when the conventional keel timber is used and the difficult operation of cutting a rabbet in the keel. Above the keel plank the lines are very similar to the V-bottom model. To simplify the construction the bottom planks are put on vertically, from keel to chine, this doing away with the use of frames and making the planking much easier to fit. This method of planking the bottom also eliminates the necessity of cutting a rabbet in the chine, as is necessary in the true V-bottom type. The motor is installed way aft, as is usual in dories, leaving a large cockpit free from all obstructions. Following the general dory practice the engine compartment iè separated from the cockpit by a bulkhead with a removable section and is decked over. A sliding hatch is provided over the motor of sufficient size to give free access for making the necessary adjustments and repairs.

25 pages, 4 plate(s)

$9.95
12-Foot Bangabout, A (Pub. No. 5439)

Just about a year ago at this time, all slicked up and resting quietly in its crate was a nifty little 21/2 h.p. Lockwood-Ash motor which a prize article had previously helped me obtain. Knowing how eager the little putter would be to commence its chug-chug with the advance of spring days, I began to feel as if it was time to get busy and build another little boat if its young hopes were to be realized. While the war was not over at that time, yet I realized that after it did end boating would come back stronger than ever so I laid plans accordingly. As a primary step I began to make sketches and what I had in mind was a neat, stiff little boat, easy and inexpensive to build, capable of carrying a party of three or four people and to be used solely for week-end fishing trips on a good sized open lake. It was a howling cold Saturday night when the final lines were sketched out on paper but with the appearance of those promised nice warm days Jingo was complete in every detail and ready to take on gas and oil. After a successful launching and a summer of continuous use in all kinds of weather on fishing trips lasting from daylight until dark (and well nigh midnight On one or two occasions) I had ample opportunity to test the little outfit thoroughly and it was certainly with reluctance that I gave up to November’s chilling winds and hauled her out. Fur the man who already owns a summer cottage at the beach or the chap lucky enough to possess a camp beside the shore of an inland lake a little boat of the Jingo type is just the craft. Whether it be a clamming trip to a certain distant point way up the beach, a flshing excursion for bass or perch way down in the favorite cove, or a berrying party to the hillside just up the shore, to Jingo it’s all the same, it will take you safely there, then bring you back. Then, too, it is just the kind of craft a couple of kids delight in tinkering about and keeping shipshape.

4 pages, 2 plate(s)

$6.95
Building an 18-Foot Runabout (Pub. No. 5441)

In almost every boating community there is to found any number of good, handy fellows who, thorugh they take great interest in the sport, can only do so in a limited sort of way through not having boats of their own, and it is for just such chaps that this article is really intended. Any one who is at all familiar with the use of ordinary tools can commence the building of this fine little runabout feeling sure he will succeed, for they construction is so simple that almost any amateur can complete the work with good results.

12 pages, 2 plate(s)

$7.95
Minuteman (Pub. No. 5448)

by Charles Bell

LOA 16+', BEAM 8', 42" DEPTH OF HULL

Here is a fast cruising catamaran.

Although she is only 16 feet long, this boat can be made into a comfortable cruiser for two and a good weekend camper for four. Contrary to general belief, catamarans and sea sleds do not afford as much inside room as conventional-type boats. The big tunnel through the middle of the bottom raises the floor and cuts down on the effective headroom that can be safely built into these types. The floor can be lowered on the outside on the larger types and some arrangements which give more room are practical, but on a 16-footer one must make the most of what is available and use the catamaran for its many advantages of hull type. Most of the hurriedly built factory models are simply two long, narrow boat hulls connected by a bridge and any performance advantages are sometimes accidental. Minuteman is the result of long study of catamaran cruiser behavior and her bottom is designed to give the smoothest ride, speed and stability, both on runs and turns, that can be expected of a light water plane. There is a nontrip outer chine and some deadrise to each plane to allow controlled turn without excessive skid or digging in, which could cause a roll over on a tight, high-speed turn. I will say right here that there is no real need for sharp, high-speed turns in any circumstance and this is a stunt practiced by the weak-minded. Minuteman gets the most room out of her 16 feet because in this design I have not allowed the motors to invade the boat but have provided a motor mount as a projection of the hull where the outboards can really be outboard. The transom bulkhead carries the height necessary to a hull of this size and the motor mount provides the dangerously low cut demanded by outboard motors. The motor mount has three large scuppers which drain off water taken into them in a hurry. The bottom of the motor mount is filled with urethane foam poured in place and is covered with plywood to provide a safe place for the gasoline tank or tanks. Any fumes or spillage from them will go overboard through the scuppers, too.

8 pages, 4 plate(s)

$7.95
12' 6" Outbard Runabout (Pub. No. 5449)

by Edson I. Schock

This runabout was designed for a general utility, fishing, or family boat. Her carrying capacity is large, and she is steady. Around a camp she is particularly useful, serving as a towboat, grocery truck, marine hayride, or what-have-you. She is not quite as easy to build as the type used for sailing, since the bottom planking has a sharp bend at the bow. This type of bottom, however, is better for a power boat. The bend does not require that the plywood be sprung or steamed, as the bottom is a true developable surface. You should not have any real trouble building her.

4 pages, 3 plate(s)

$6.95
16' Utility Runabout (Pub. No. 5450)

by Edson I. Schock

This launch was designed for general all-around usefulness. She may be used for fishing in fairly rough waters, as a small club launch, a family day-boat for rides, picnics, watching races, or whatever other duties you may have to attend to on the water. The little shelter cabin will provide a place to keep things dry and will also be a place to sit in during a shower. A couple of young fellows might even sleep aboard for a weekend cruise. Before attempting to build this boat you should have some skill with tools, and preferably have already built a simple boat, because a boat of this size represents a lot of work, and the complete novice may become discouragd before he is finished. Her construction differs from that of most of the boats in this book as she is not suited for plywood planking, and the narrow plank, or “strip plank” method is specified. This is an easy planking system for amateurs, and it has the further advantage of wasting a minimum of planking lumber. While she was originally designed to carry an outboard motor, she could easily be fitted with engine beds and a skeg so that an inboard engine of about 5 horsepower could be installed.

8 pages, 6 plate(s)

$7.95
Build a Towboat for Solo Water Skiing (Pub. No. 5451)

by C. Claude Tabor

A control stick replaces the towrope to put you in charge of both the steering and the speed of this midget outboard.

Be independent! If you get a sudden impulse to water ski, why waste time rounding up somebody to pilot the towboat? With this clever rig you can solo. It's a 71/2-foot outboard that features safe maneuverability, a steering mechanism on the transom, and a V bottom for good stability in rough water. I dimensioned the hull so it can be built with standard materials from the local lumber-yard which keeps costs down..

7 pages, 3 plate(s)

$7.95
Build this Miniature 3-Pt. Hydroplane (Pub. No. 5459)

by Hal Admonson

How about an exciting new, easy-to-build boat for the younger set? This sharply-styled 9-ft. 3-pt. suspension miniature hydroplane designed by Hal Adamson is unsinkable because of its Plyfoam and fiberglass construcitonk weighs only 68 lbs., and will do about 25 mph owered by a remote-controlled 6-hp outboard.

8 pages, 2 plate(s)

$7.95
Build the Scottish Schooner (Pub. No. 5460)

by Hal Kelly

The Scots—knowledgeable as they are in the methods of thrift (stretching a penny as far as it will stretch) —have a way of taking an ordinary substance, disguising it cleverly, giving it a fancy name and getting unexpected mileage out of it. Witness Scotch Woodcock, which turns out not to be related to pheasant under glass at all, but is scrambled eggs and fish paste on toast. Thus we have the Scottish Schooner. It’s actually a 15½-ft. runabout, but it is so successfully designed to get the maximum use out of limited space and so economical to operate, it might as well be a schooner. The little craft is also almost 5½ ft. wide and 31½ in. deep. No wonder its payload is rated at six adults plus storage. It’s fine for offshore fishing and will troll for hours for mere pennies. Or you can just put-put around in it. For a power plant you’ll want a small air-cooled engine. A 4-hp Clinton, picked up at a close-out for $55, was used on the original Scottish Schooner. The craft will take a mill that pumps out 40 horses—with no problem—but then it wouldn’t be Scottish. If you use an air-cooled engine of less than 10 hp you’ll have ample power and you won’t need to register the boat.

7 pages, 3 plate(s)

$7.95
Budget Houseboat, A (Pub. No. 5463)

by Hal Kelly

The Budget Houseboat is like a camper that goes on water.

She's 20 ft. long with a 9-ft. beam, containing 300 sq. ft. of usable floor area. This means that while she can accomodate two in outrageous comfort, she can easily take a family of four on an extended vacation and be entirely self-contained. There are two full-size permanent bunks in the forward section of the cabin. The dining table, in the rear section of the cabin, seats four and then drops down to convert into an extra bunk 6 ft. 4 in. long and, 38 in. wide. Cabin headroom is 6 ft. 2 in., and two cots can be stationed to the rear of the cabin area. In the second place, The Budget Houseboat’s storage and work areas are just as much a marvel. She features a large-size enclosed head up front, room for a 4½-cu.-ft. fridge, sink and two-burner stove in the galley, storage and drawer under the sink, and storage under the bunks, dining table, rear cockpit, and in other scattered areas. Part of the storage in the cabin is a 2-ft-wide. hanging closet. The deck area doesn’t end on the cabin level. The Budget Houseboat sports a full flying bridge more than 6x9 ft. in size, with more storage area in it. The bridge has an alternate steering console, two seats and deck area for a couple of lounge chairs, plus the capability of taking a convertible Bimini top. But that’s not all. The Budget Houseboat may sound like a barge from the foregoing, but she handles like a dream. The little home-on-the-water-away-from-home is designed to hang a 30-hp outboard, and with this kind of power she can do 15 mph with four people aboard! Her draft is only 4 in. Piloting from the bridge is the way to go. Back her off to a cruising speed of 8 mph and the motor is just a whisper with gas consumption minimal. It’s quiet enough so you can listen to a radio under way. Two side windows slide open sideways, the front window in the cabin wings up, and there’s a good-size hatch-cover up front that can be opened to let the breeze drift through the boat. And there’s more. Since The Budget Houseboat is trailerable, you never have to worry about the campgrounds being full, on the water or on the roat When you're ready to camp just throw out the anchor and settle down for the night.

12 pages, 4 plate(s)

$7.95
Zenith, A Hand 25-foot Cruiser (Pub. No. 5468)

Designed by Wm. H. Hand, Jr.

Now, who would like a fine little cruiser? We have had plans for runabouts in all sizes from 15 feet up and also a cruiser in the larger sizes. Here are some plans for a crackerjack little cruiser of only 25 feet length. Imagine the joys of sailing about on a handy little boat like this fitted with a 20 h. p. Kermath motor neatly tucked away under the bridge. Just think of the many happy days to be spent on this little boat in cruising about from one picturesque harbor to the next. Or what could be more fun than going in all the club motor boat races and winning the prizes. The busy little motor with which this boat is to be equipped is capable of pushing it along on a merry clip. One that you need not be ashamed of. You will never be the last boat back with this outfit. The hull is light and strong and the design is perfect. Only a designer of the skill and experience of Wm. H. Hand, Jr., is able to turn out a boat with such a multitude of desirable features as this one possesses. There are comfortable berths, a capacious galley, and pantry where the meals can be prepared in comfort. A roomy toilet and numerous other items! Under the cockpit floor are the gasoline tanks and a large flush hatch makes this lazarette space easily accessible for the stowage of baggage and luggage.

12 pages, 5 plate(s)

$8.95
Build the Stiletto (Pub. No. 5474)

by Art Mikesell

With sleek SK streamlining and a super-speed bottom, it’s 16 feet of high-performance ski-boat that you can build.

Here's one of he best high-speed runabouts PM has ever presented as a boat-building project. It’s designed strictly for speed, with a minimum of compromise. That broad flat bottom is built for quick getaway and maximum go, a combination which makes this a top ski boat. On the other hand, if you want to fish, run a rough chop or carry more than four people, better shop around for something a little more tame. Stiletto is a frisky thoroughbred, not a workhorse. Construction follows stock boat-building rules. All lumber over 1 in. should be “four quarters” stock finished as full as possible, which usually means from ¾ in.to 7/8 in. All lumber thicknesses under 1 in. should be considered net. Use oak, mahogany or spruce if available. Otherwise, substitute any species commonly used in boat construction in your area. All plywood must be at least exterior grade, and preferably marine grade. All joints should be glued with a hardsetting glue of the resorcinol or plastic-resin type. Fastenings should be hot-dipped galvanized or bronze.

10 pages, 3 plate(s)

$7.95
Sixteen Foot Half-Cabin Cruiser, A (Pub. No. 5482)

This sixteen foot V-bottom cruiserette has been a popular choice of the amateur builder in Australia, New Zealand and the Pacific Island for some time and here we present the layout and building instructions in detail.

Sixteen feet long, six feet beam and one foot nine inches draft, this is the ideal boat for the amateur builder and enthusiast who wants a small family cruiser. The choice of power plant would depend on the speed required by the owner, say from ten horse power for the modest yachtsman to the 250 cubic inch motor if more speed is required.

8 pages, 2 plate(s)

$7.95
Flight a 19 ft Plywood Outboard Cruiser (Pub. No. 5492)

by John Long

This fast-sailing catamaran is very light, easy to build, and will furnish many hours of pleasure to its owner. Plywood is used in the construction of the hulls, thus keeping weight and cost at a minimum.

12 pages, 4 plate(s)

$7.95
Scram II--A Flashing 15.5' Runabout (Pub. No. 5498)

by Ernest A. Johnson, N.A.

A revised and up-to-the-minute ver sion of the famous speedboat.

SCRAM II is a boat that is “tops” in beauty and speed. As you settle in the front cockpit, press the starter button and hear the powerful motor roar into life, you will be proud of owning her. When you cast off the lines and nose her out to open water where you really open her up, you will thrill at her speed and grace. Scram II can hardly be told from a Chris-Craft 15½-footer or any other factory built job, but it will cost you much less.

6 pages, 3 plate(s)

$7.95
Buzzer II--a Fourteen-foot Outboard Speedster (Pub. No. 5499)

by Ernest A. Johnson, N.A.

Here is a worthy successor to the famous “Buzzer” that scored a great hit.

“Buzzer II” preserves the best features of her predecessor, but is pointed up all along the line, and her construction has been simplified as well. “Buzzer,” proved so successful that we have decided to give you a boat of the same size and general lines as “Buzzer,” but with certain changes in the construction so that it will be easier to build. Buzzer II will have a top speed of about 35 miles an hour, which will vary somewhat with the size of the motor used.

5 pages, 3 plate(s)

$6.95
Scud--A Fast 14-Ft. Outboard (Pub. No. 5501)

by A. Mason, Naval Architect

LOA 14' 11/2", BEAM 4' 91/2", WEIGHT 250 LBS, DRAUGHT 2'.

"Scud" will be as much fun to build as to use. Her construction makes maximum use of plywood—which is light, sturdy, and watertight—-yet the hull form is fast and seaworthy. She is as modern looking as any boat in the fleet and suitable for fishing, aquaplaning, or just a fast spin over the water. She was designed to use any outboard motor from 10 to 33 hp. With a 10-hp. motor, she’ll do about 19 m.p.h.; with 22 hp., the speed will go up to 30 m.p.h.; and with 33 hp., she’ll zoom along in the neighborhood of 35 m.p.h. A single, large cockpit is often preferred in a boat generally used for fishing—-it’s slightly more comfortable and much more roomy. If this appeals to you, simply omit the bridge deck.

7 pages, 3 plate(s)

$7.95
Baby Blue--A Fast Outboard (Pub. No. 5505)

by Luther H. Tarbox, Naval Architect

LOA 15'3", BEAM 5' 0", WEIGHT 200 LBS.

If you are as disgusted with the roughwater performance of the average outboard utility boat as the writer is, then you’ll like "Baby Blue", for she is designed expressly for rough-water use. There are many stretches of water where an able outboard hull is a sterling possession: Long Island Sound, Barnegat Bay, the Delaware, the Chesapeake, the big sounds of Carolina and Georgia, the Great Lakes, Puget Sound, Mississippi Sound, and so on. All such waters require outboards such as Baby Blue. A properly designed outboard-powered skiff can be fast in smooth water, but get her out into a good chop and she will just about pound her bottom out. That’s one of the things "Baby Blue" is designed not to do. Why the name "Baby Blue?" Well, Horn Island and Petit Boise Island lie 12 miles out across Mississippi Sound from where the writer lives. On their offshore sides, just beyond the breakers, there are plenty of bluefish to be had for the catching. Since the writer has built a "Baby Blue" for his own use and also has a yen for bluefish, the name is a natural. "Baby Blue" is in no way an experimental design; she is developed from two earlier utilities. The first of these was "Mullet", a 15-foot 200-lb. boat. She rode choppy water like a duck and banked nicely on turns. With two aboard and a 5-hp. Johnson on the stern, she did 14 m.p.h. The second boat, a 15½-footer, had the same bottom as "Mullet", but had 4 in. more freeboard. She was fitted with a motor well just forward of the transom, a live-bait well, a short forward deck, and narrow side decks; so she weighed close to 300 lbs. Both the motor well and the waterscoop for the live-bait well added considerably to the resistance. Like her predecessor, she behaved perfectly.

16 pages, 3 plate(s)

$8.95
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