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Whizzer--A Hydroglider (Pub. No. 5122)

by Weston Farmer

At last! Here’s the long looked for air-drive speeder which our shoal draft boat bugs have been looking for. Souped-up motorcycle conversions will furnish good speeds if weight is watched.

There are two things which remained unanswered in the general lexicon of published wisdom on things boatwise. One unanswered question is, will a converted motorcycle or auto engine drive a boat with an air prop?” The second unanswered question is “How can I get reasonable speed on a boat that will float on a morning dew?” Whizzer is the answer to all of this. She’s little, and light, and easy to build in the bargain. And inexpensive. Further, she will go reasonably fast with a light converted motorcycle engine which has enough intestines to produce 25 h. p. on a weight of around 85 lbs. About 22-23 m.p.h. And she draws as little water as is reasonable. I’d like to leave that rudder off, so that there would be nothing on the bottom but paint, but I can’t perpetrate anything on the public that won’t work, so I’m telling you that air rudders are lousy-—a bane on the stern end, if you get what I mean. Not only are they affected by every cross wind that blows, but they haven’t any turning power at low speeds. On airplanes they are 0. K. as there is enough wind to make them effective. On a boat to do the same work they have to be as big as a barn. So water rudder we have, with its effectiveness and draft.

4 pages, 2 plate(s)

$6.95
Thing, The (Pub. No. 5151)

If you’re in or on the water near Marathon, Florida, and happen to spot what appears to be a sea monster bearing down, don’t die of heart failure—it’s probably nothing more than Al Bayles’ "Thing". All who see it say it’s the darndest boat ever built, but they have to admit it performs. "The Thing" has great maneuverability and literally flies across the surface. Under full power of a 10-hp motor, little more than the prop and the keel remain in the water. And 10 hp is all that Al recommends—any more and "The Thing" assumes control!

4 pages, 2 plate(s)

$6.95
Parti-O--A Trailerable Patio Craft (Pub. No. 5257)

by Frank C. Beeson

A trailerable patio-craft that you can build provides semi-sheltered space afloat for summertime recreation.

You can take the family on luxury cruises, entertain friends on weekends, or go on all-day fishing trips with this semi-sheltered, floating patio that you can build. It’s great, too, as a swimming dock or for sunbathing-—even for moonlight dancing parties on your favorite lake or river. There are no compound curves in the construction and all materials are available from your local lumberyard. Once the basic structure—-made up of the lumber frame and the main plywood panels-—has been completed, you can choose finishing touches and trim from among materials most readily available to you and best suited to your budget. The original "Parti-O" was outfitted with an 18-hp outboard engine.

6 pages, 4 plate(s)

$7.95
Snowboat--A Water/Snow/Ice/Air Boat (Pub. No. 5278)

by Joseph Adams

Powered by a 125-hp aircraft engine, this convertible summer and winter craft traverses water, ice or snow.

On water, this sleek airboat skims along at better than 35 mph. Attach the skis and she’ll easily do 60 mph over snow. She’s an all-year craft that’s even equipped with runners for zipping over ice. The engine is a four-cylinder, air-cooled aircraft type made by Lycoming for generator units which supply the power to start Air Force jet planes. It develops 125 hp at 2,600 rpm. Building the hull is not a difficult job. It’s basically a simple, flat-bottom scow. As for the metal parts, they consist of common stock which can be shaped in your own shop or a local shop where metalwork is done. A building form is necessary. This is simply two 16-foot lengths of 2x4-inch lumber, spaced 48 inches on centers.

20 pages, 2 plate(s)

$8.95
Skubadoo--A Styrofoam and Fiberglass Submarine (Pub. No. 5281)

by William Steiniger and Jack Smith

Here’s a skin diver’s dream sub you can build.

If you’re a skin diver of any experience you know that an electric-powered sport submarine is great for underwater exploration. Seated in such a vehicle, you can cover more bottom simply because you do not expend your energy in swimming and your precious air can be made to last much longer. Also, it’s great fun to operate. In building the sub, our original intention was to make it of fiberglass with a Plyfoam core. A wet sub (one that fills with water and is used with an aqualung) requires a certain amount of flotation and we felt the Plyfoam would be ideal. With a layer of fiberglass bonded to each side, it becomes strong indeed.

12 pages, 2 plate(s)

$7.95
Collapsible Glass-Bottom Boat (Pub. No. 5291)

Here’s a perfect rig for the junior boatman--novel yet simple.

This versatile little rig was designed to serve a single purpose, but we soon discovered that it could serve many. Primarily, it was built for one or two of our children to paddle around in when we anchored our small cruiser, since we have no dinghy. But we added a few novelty features and so created many more uses. Even a landlocked tourist can now casually launch himself on any lake or stream, simply by removing the assembled, 8-foot hull from the car roof or by reaching into the trunk for the collapsed craft. It takes just 30 seconds to assemble the sections, and carrying it to the water is no problem, since it weighs only 29 pounds. The real fun starts when you examine marine life through the Plexiglas window beneath your feet. With this feature, you can stay in contact with the bottoms after the weather has turned and the shivering skin divers have gone home. It’s also a fine way to watch your quarry going for your lure as you fish. Or, for the “shutterbug,” it’s an open window onto the glorious colors and formations below, which provide an endless source of fascinating photographs. A paddle gets you around very quickly because of the lightweight plywood hull. And since the boat has plenty of beam for its length, and good side flare, stability is fine-—provided no horseplay is indulged in. As to the glass, a plywood panel hinges down over it and forms an extra seat for a small-size passenger; the panel doubles as a sunshade when viewing through the glass 

22 pages, 5 plate(s)

$9.95
Buzy Bee--A Motorized Glass-Bottom Boat (Pub. No. 5293)

by Hal Kelly

Built in a weekend, "Bee" has a built-on viewing window, dead man's throttle and shielded prop for added safety.

"Buzy Bee" is not a toy, but a real fun boat designed to cover a lot of territory. A Plexiglas window allows skin divers or the merely curious to clearly see what’s on the bottom. You can use "Buzy Bee" for fishing, shell collecting, or simply puttering around in the summer sun. There’s space aboard for small equipment, such as a spear gun or gaff, or even a small anchor if you want to moor away from shore. And, perhaps best of all, you can build it yourself in one weekend, for about $100 including the engine. The "Bee" will idle along at barely more than a standstill, or step along at its top speed of 8 mph—-which is pretty exhilarating when you’re lying there just a few inches above the water. You steer with your feet, or by shifting your weight from side to side, as you would on a sled. The propeller is mounted well forward, where it is nearly impossible to reach, but it is surrounded by an aluminum shield as an added safety measure, A “dead man’s” throttle is used—-if you release your grip on it, the engine stops. If you should happen to fall off the boat, it won’t run away from you, and the propeller won’t be turning when you climb back aboard. Foamed-in-place flotation makes it possible for "Buzy Bee" to support 350 lbs., so even if it is swamped or damaged, it will still carry the weight of engine and operator. All in all, it is a safe and sturdy package that will withstand a lot of hard use. The engine is a small, 3½-hp Clinton Super 415 fitted with a heavier flywheel to make it easier to start. This motor has a vertical shaft, which is connected to the gear and propeller assembly from an old outboard motor. You can get a lower unit from an obsolete 3- to 5-hp outboard for next to nothing. A commercial unit called a Jaw Coupling makes this hook-up a cinch. The finished boat weighs just under 80 lbs., so it isn’t too difficult for one adult, or a couple of kids, to hoist it in and out of the family station wagon. Grab handles on the bow and stern add to the ease of handling.

16 pages, 3 plate(s)

$8.95
Glass-Bottom Boat (Pub. No. 5295)

by William D. Jackson

Underwater fun and adventure can be yours when you build this glass-paneled gadabout or add glass “windows” to your present boat. Here’s how.
Glass panels in your boat will open, up a colorful new world of underwater excitement. Such a paneled boat is ideal for Scuba or skin divers, because it previews promising diving areas for them. And when you use such a see-throug boat with an underwater intercom, you have an ideal combination for a team diving effort, for unlimited fun, adventure and exploration. If you already own a boat with a flat bottom. similar to the one shown here, you’ll find the instructions on how to install glass panels in the bottom toward the end of this article. If you don’t own such a craft, follow the complete plans given here and you’ll have yourself a nifty little all-purpose boat.

20 pages, 3 plate(s)

$8.95
Pogo--A Paddle Boat (Pub. No. 5328)

by Harry J. Miller

This paddle wheel boat will skim over shallow waters at 9mph. Uses 3-hp lawn mower engine for power.

Pogo isn't a boat for navigating rough waters, but 15-year-old Jimmy Tench of Bradenton, Florida, had no such intention when he designed her. For his hobby of gathering orchids and exploring the placid bayous near home, he needed a boat with shallow draft and a propulsion system that wouldn't foul in the dense growth of mangrove, hyacinth and grass. Thus he produced this flat-bottomed paddle wheeler which skims over the watery vegetation and takes him right up to the shores  bordering the inlets. The little boat moves along, too. Jimmy heads her up the Braden River at a 9 mph clip under the thrust of an old 3-hp mower engine which he bought in a junk yiird for $15 and overhauled it himself, spending another few dollars for new rings arid gaskets. His total cost for the boat and engine came to just $50. Thought out and built in six weeks of spare time, Pogo is quite simple in construction. A 4x8-foot sheet of quarter-inch exterior plywood provides the bottom, with some left over for the spray shield. The sides are two six-foot lengths of lxl0-inch fir, cut to the shape indicated in the drawing. The transom is another piece of lxl0-inch fir, cut to the dimensions shown, and a beveled piece of 2x4 stock is used at the bow.

8 pages, 2 plate(s)

$7.95
Build this Surf-N-Sailboat (Pub. No. 5359)

by John Carroll and Associates

Sponsored by an active class organisation, the high performance Australian Sailfish is cheap, easy-to-build and as refreshing as a stroll down Bondi Beach.

The Australian Sailfish made its first appearance in Victoria in the late l950s. It is based on a proven type of hull form which originated in the United States, and then found great popularity in New Zealand, due to several fundamental characteristics. These include simple and cheap construction, light weight and ease of transport, good buoyancy and safety factors, and last, but not least, very hot performance. The design has produced a craft which provides a safe and simple training boat to the novice, and a craft which will give the more experienced skipper the thrills and performance sufficient to outsail many established, larger and more expensive classes. In essence the Sailfish comprises a fully decked hull 11 ft 6 in. in length with a beam of just under 3 ft, having a maximum depth (excluding plate) of 6 inches, and minimum weight of 63 lb. It is cat rigged, with a mast 16 ft high carrying a mainsail of 65 square feet.

14 pages, 1 plate(s)

$7.95
Build the Sea- and Skifish (Pub. No. 5464)

by George Daniels

Many small-boat sailinging fans in northern climes have a secret desire to own. a boat they never have to put away. When winter comes and the water freezes the boat of their dreams just climbs up on the ice and continues sailing as an iceboat. This, of course, is a fantasy. So far as we’ve been able to figure out, no such arrangement is possible. But in our brainstorming, one of the things we figured out that is possible is to have two different little craft—an iceboat and a sailboat—that use the same rig and sail. Sail around all summer in the boat. When winter comes, transfer the sail and rig to the iceboat and continue batting the breeze. So we set to work designing such a combo, and what we came up with is the Seafish-Skifish. The Seafish is fast. She planes in any breeze worthy of the name and she cartops easily, too. She has a roomy cockpit that makes her a boat you can sail in as well as on, and she’s built with kick-up leeboards that let you go into shallow water without worrying about obstructions. But if Seafish is fast, watch out! Skifish is a speed demon. In the right breeze she can hit speeds of more than 50 mph. She’s also a cartopper, with a hollow fuselage, which means that she’s light to handle and would float (close to 500 lbs. buoyancy) if you went through the ice. Seafish and Skifish use a standard Sunfish sail and rig that can be transferred.

10 pages, 2 plate(s)

$7.95
Jitter Bug--A Water Bicycle (Pub. No. 5518)

Built for exercise or sport, “Jitter Bug” is a hybrid creation combining qualities of both the bicycle and boat. Propelled easily with its twin paddles, with speeds up to 10 m.p.h. Jitter Bug will buck strong currents, operate in water depths as low asthree inches, and is easier to handle than any boat. No practice is necessary to operate and due to its unique design, tripping or tipping is impossible regardless of passenger weight, making it safe for children or adults.

12 pages, 2 plate(s)

$7.95
Showboat a 16.5 ft Bicycle Powered River boat (Pub. No. 5608)

by Douglas Rolfe

This miniature “Showboat” is an ideal camp afloat for those who like to spend vacation days on lake or river. Economical to operate, it permits fun on limited budgets.

For generations the old stern-wheelers have been industriously churning their way up and down the great rivers of America, and even today the river Steamboat is a familiar sight at many of the old Mississippi landings. Showboat brings a small and simplified edition of these famous boats within the practical building scope of anyone interested in lake or river craft, and offers, besides novelty, extraordinary economy and remarkable cabin capacity for so small a craft. The advantages of the design are plentiful. In the first place it requires nothing beyond ordinary carpentering to build and no very special skill at that trade. Then again it provides the maximum of cabin space and yet draws so little water that it can be run into a safe landing wherever a few inches of water are available. On top of all that. unless it is engine operated, it costs nothing in the way of fuel to run. Showboat is powered by the crew and passengers. Two old bike frames, mounted side by side, are coupled quite simply, without a difficult conversion job, to the twin stern wheel so that two ordinary persons can comfortably propel this unique ship anywhere they choose to go. A small motor can of course be substituted for the "exercycles."

10 pages, 5 plate(s)

$7.95
Three Trailer Barges (Pub. No. 5622)

Park a house trailer on one of these barges and go to sea! (Well around the marina anyway)

The garvey type hull shown here in three designs and two sizes to suit a large, or small house trailer and in either waterproof plywood or ordinary lumber construction has several interesting possibilities as a houseboat proposition. Easy loading and unloading of the trailer has been kept uppermost in-mind. The barge’s long cut. away bow can be run far enough up on shore to take gangplanks down which the trailer can be backed by hand or car. With the trailer loaded, temporary deck beams forward are dropped in sockets and plywood or T. & G. built panels placed over them to form a spacious forward deck over which an awning can be arranged to suit.

16 pages, 5 plate(s)

$8.95
Tubby--A 17 ft Pontoon Boat (Pub. No. 5623)

by Peter Clarke

"Tubby", although not exactly beautiful to look at, represents a very useful and comfortable way of getting around on lakes and small sheltered coves. She was designed with the idea of producing a very simple-to-build craft that would give the maximum amount of deck space with the minimum expense. In spite of her ungainly appearance, with a four horsepower motor she can whip herself up to a fair and honest five miles an hour, and with over one hundred square feet of useful deck space available, there is ample room for swimming, diving, fishing, or even small parties. On one occasion, with the aid of a piece of tin on the fore deck, a very respectable weinie roast was held while slowly cruising along the lake. And the luxury of having a fishing party with three or four people fishing from deck chair.s was formerly reserved for those fortunate enough to own forty foot cruisers. But Tubby, though admittedly not as pretty, is every bit as much fun to own.

4 pages, 2 plate(s)

$6.95
Zipper--An 8-Ft. Catamaran Ski-Boat (Pub. No. 5818)

by William D. Jackson

LOA 8 FT, BEAM 4 FT.

This 15-hour do-it-yourself boat project fills enthusiast's bill as planing sports boat, water skier, racer, ski-tow boat, surfboard, fishing raft or diving plantform
.

Zipper rides like a pair of water skis except that you can maneuver like a star in a water thrill show by gently nudging the tiller bar with your feet Your hands are free to operate the throttle and apply plenty of body-english to your turns. Speeds up to 36 mph are possible with 18-hp motors, but even a little 5-hp kicker will perform to please the most jaundiced boating fan. To get this performance, Zipper was designed with twin hulls forward, leading into a conventional planing surface aft. Construction is of exterior-grade AC fir plywood and fir lumber. All materials are available from your local lumberyard or hardware store and should be on hand when you begin construction. No great amount of workshop space is necessary, because the framing will be assembled directly on the 1/2-in. plywood deck

8 pages, 4 plate(s)

$7.95
Let's Go Barreling (Pub. No. 5819)

by Merle E. Dowd

Nobody goes along just for the ride in a barrel--boat everybody walks and has a barrel of fun

The easiest way to describe the barrel-boat is to say that it s like a paddle-wheel steamboat without the steamboat. And, if you re looking for a new water sport that demands teamwork and coordination, yet provides plenty of excitement for the whole gang, you ll agree that your next boating project should be a barrel-boat. The crew members (any number from one to seven have operated the barrel) maneuver by shifting their weight. To turn right,the crew shifts to the right and the boat heels slightly, and turns. With practice and everybody working together, the barrel can be turned in a 50-ft. circle.

4 pages, 1 plate(s)

$6.95
Pedal Cat (Pub. No. 5829)

by William D. Jackson

You can pedal or power this water cruising bicycle.

Pedal Cat is a paddle-wheel driven catamaran which you operate much the same as a bicycle. It will navigate in about 3½ in. of water, is silent, and can be used upon protected waters anywhere. Resort operators will find this water craft a popular addition to a fleet of rentable boats. If you prefer to power it with a small outboard motor, the paddle wheel may be removed and the motor clamped to an engine support board. Simply lock the outboard motor in the dead-ahead position and steer with the handlebar-controlled rudder. The materials needed to build Pedal Cat are exterior fir plywood and pine, fir or hemlock solid stock available at local lumber yards. The paddle-wheel foot cranks, bearings and handle bar are made of ordinary standard pipe and pipe fittings available at local hardware or plumbing stores.  The pontoons measure almost 10 ft. in length. If 4 x 10 ft. plywood panels are available, well and good; if, however, your lumber dealer stocks only 4 x 8 ft. panels, it’s an easy matter to butt join the pieces with reinforcing lap blocks.

18 pages, 2 plate(s)

$8.95
Half-Pint--A small simplified sea sled (Pub. No. 7808)

A little plywood and a lawn-mower engine are all you need to build "Half Pint".

Plywood-preferably the waterproof kind, a small amount of miscellaneous stock and a tiny gasoline motor is all you need to make "Half Pint.” The original, capable of carrying three persons, was quite a sensation at Balboa bay, Calif., where even the old boat builders expressed genuine interest. Built in a garage, it was taken 50 miles for its first dip and has never developed a leak. This little sea sled can be easily carried on your car, and fishermen and tourists will find it ideal for use on remote lakes having no boating facilities. It is only 9 ft. long and so light that two boys can easily carry it. This boat is suitable for the use of any small gasoline engine of the lawon-mower type, air-cooled by a fan in the flywheel. The 1/2-hp. engine which was selected, is exceptionally satisfactory because the gas tank is in the base and as it is a self-contained unit throughout.

3 page(s)

$3.50
Fun at the Beach with a Bicycle Boat (Pub. No. 7809)

Buoyancy and speed are two features of this bicycle boat which was built for vacationists at a lake near Chicago and used a whole season. It consists of two pontoons and an old bicycle frame, held centrally above and between the former. Propulsion is obtained by the use of a ring-and-pinion gear, bolted to the pedal sprocket, and a small three—blade propeller connected to the gears by a suitable shafting.

4 page(s)

$3.50
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