Power Boat Plans

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18-Ft. Day Cruiser (Pub. No. 5137)

Designed by Edwin Monk, Naval Architect

The clean, honest lines of this trim day cruiser will provide exciting new pleasures for the week-end skipper! She’s designed for family comfort and safety with a spacious cockpit and deep freeboard. Roomy cabin gives all-weather protection and generous living space. Big windows for all-direction visibility. Rugged hull design is built for motors up to 40 hp and speeds to 30 mph. This boat will take skill and patience to build-—but not more than the real boat-minded amateur can master.

8 pages, 6 plate(s)

$7.95
Ranger (Pub. No. 5138)

by Charles Bell

LOA 16', BEAM 85"

Ranger is the popular-sized 16’ x 85” x 52” outboard-powered boat which will carry two motors.
(Fiberglass construction.)

Two outboards of 35 h.p. are plenty big enough and one 50 will do if a larger motor is preferred. Do not overpower the boat; this only makes any boat dangerous and does not add to her speed or performance. This boat has a 5’ x 10’ open cockpit with a swept-back and sloping windshield and side wings. She can be used either as an open boat, or as semi-open, with the hardtop, which slides from the windshield (where it is normally carried) to the after end of the cockpit and which can be locked in any position with the thumb screws on the slides. The boat also provides storage space aft of the cockpit for a nylon convertible cockpit cover and aluminum tube supports which quickly convert the whole cockpit into a cabin. The hardtop, of course, has sliding windows which snug up the cabin against the weather for weekend cruising.

16 pages, 5 plate(s)

$8.95
Marianne (Pub. No. 5145)

by Ted Benze

What do you do if a family isn’t happy unless it’s afloat and the boat you have won’t float them all? The answer is simple: get a bigger boat. But when we went to look at bigger boats it soon became apparent that we couldn’t afford any we could use and didn’t like any we could afford. The solution was to design and build a boat that gives the most room for the least money—a houseboat. Marianne has a catamaran hull to provide minimum drag and maximum speed with a 75-hp outboard motor. She’s stable and will do up to 15 mph on flat water.

11 pages, 3 plate(s)

$7.95
Waterwing (Pub. No. 5146)

by Gene Edmonds

Here is 141/2 ft. of easy riding, fast moving economical comfort.

The Waterwing was designed to provide a sturdy, safe, soft-riding family boat "Waterwing" rides fast and dry. This boat has all of the features of “the big ones” in that it has style, comfort and durability. It sleeps two and will carry a small family for many happy hours of boating pleasure. Easy to launch and tow, the Waterwing is also easy to build.

8 pages, 2 plate(s)

$7.95
Pudgy (Pub. No. 5147)

by Joseph Adams

"Pudgy" is short in size, but long in quality. She boasts speed and style.

Join in the fun on the water with "Pudgy", a lightweight 12-foot outboard runabout. Its canvas construction assures both initial and operating economy, since any damage is easily patched and a 51/2 hp engine is all that is needed to push "Pudgy" up on a plane. Up to four persons may be aboard without cutting down appreciably on her performance. Spruce shingle lath is used for this project. By buying it 1x3 inches and ripping into 1x2 inch or lx1 inch as needed, a substantial savings can be made. The covering material is white untreated duck, which can be bought at reasonable prices from mail order houses. One half sheet of 1/4-inch plywood is ample for the transom and gussets.

8 pages, 2 plate(s)

$7.95
Taffy (Pub. No. 5148)

by Charles M. Ungerbuehler

A gold-plater from stem to stern, "Taffy" is a de luxe runabout for the discriminating sailor.

The keynote of "Taffy" is quality. If you have become disenchanted with boxy, makeshift designs and inferior workmanship, then "Taffy" is for you. This is a boat designed with no short cuts. When finished she will give you the pride of ownership that only true quality provides. Don’t get the idea that this boat is beyond your capabilities. An average well-informed amateur builder who is willing to put in the time and effort will have no trouble with "Taffy". In no case should anyone attempt this project without first having read one of the better books on the art of boatbuilding. "Boat building," by H. L Chapelle and "Boat building in Your Own Backyard" by Sam Rabl are classics in the field.

16 pages, 2 plate(s)

$8.95
Swell Time (Pub. No. 5149)

by Bill Futrell

A speedy but safe 13-foot family runabout that both mom and the kids will love, and dad will want to build:

"Swell Time" was designed as a family runabout. With safety in mind, she was made 32 inches deep and 68 inches wide. The bottom is 60 inches wide to make her fast and capable of carrying a heavy load. One of the features of this boat is tapered chines to make her highly maneuverable and safe in a high-speed turn. The bottom design makes her a smooth riding boat in rough water. All the frames are covered by the seats and back rests. The back seats lift up to provide storage space. The boat is sturdily designed. With a 30 h.p. motor, she is a live bombshell; she planes easily with a small motor.

11 pages, 1 plate(s)

$7.95
Apache (Pub. No. 5150)

by David D. Beach

Here’s a 16-foot plywood outboard runabout that’s perfect for skIing, fshing and all-around family fun.

We are concerned here with the family or group that uses its boat as a picnic spot, cruises with its fellow outboard club members on the lakes and rivers on a Sunday afternoon and tows the youngsters astern on water skis. So let’s look at "Apache". She is big and beamy, with a good wide bottom to carry a fair passenger load without bogging down excessively. The bottom is easily veed forward to take the chop of confused waves on crowded lakes and restricted waterways. Amidship the sections have enough deadrise, carried well to the transom, to provide a comfortable heel when turning and to prevent any tendency to leap regardless of location of the load. The sides are flared all the way aft to keep random spray from coming aboard and to provide a substantial rub strake at the widest part of the boat. Aft the transom is cut for long lower unit outboard motors, and the high cut-out minimizes the danger of water coming aboard. The bottom aft is 60 inches over the spray rail, insuring proper buoyancy to support the newer and bigger motors, to absorb their starting thrust moment, and to give just the right amount of planing surface for safe and comfortable running. Six adults can be seated on two seats, each nearly five feet long.

8 pages, 5 plate(s)

$7.95
Bayou Belle (Pub. No. 5152)

by David Beach

This 24-foot outboard river cruiser boasts the comforts of home.

Bayou Belle provides one designer’s solution to the search for an ideal river cruiser, and does so with the capabilities of the average small boat builder as a prime consideration. The structure is simple to fabricate and assemble, utilizing exterior grade fir plywood wherever possible. The structural members are of oak or yellow pine although locally available woods of equal strength are entirely satisfactory. Only a band saw and a tilting bed table saw are required besides the usual chest of hand woodworking tools and a power drill with screwdriver attachment. The outboard plan and profile shows a big pram-like hull on which is mounted a long cabin with four large windows on each side.

8 pages, 5 plate(s)

$7.95
Firefly (Pub. No. 5153)

by John Brendlmayr

Speed, stability and portability with room for five—that’s the promise of this versatile plywood and Fiberglas 14-footer.

This is a highly versatile craft. She is the ideal trailer size, light enough so that there are no handling difficulties, but able enough for a day’s enjoyment in most waters. Stability is such that passengers can stand and walk about without concern and she will carry five persons. "Firefly" makes an adequate and handy fishing boat for anything except offshore work. Of considerable importance is the exhilarating performance attainable with engines of 30 to 40 horsepower. Speeds in excess of 30 miles an hour can be reached with safe banked turns. "Firefly" has the speed and lifting ability for water skiing. Construction methods shown are well suited for a home builder or for a small shop. The straight sheer facilitates the use of a solid sawed harpin. Such a harpin contributes to ease of alignment and insures a smooth, accurate curve at the sheer. Longitudinal hull battens are laid on the outside of the frames rather than notching the frames for the battens. This is done both for ease of construction and to give a uniform pattern of deflection to the plywood under load.

7 pages, 3 plate(s)

$7.95
Silver Fin (Pub. No. 5155)

by A. Mason. 

This 20-foot day boat may be built of plywood and equipped with twin engines.

"Silver Fin" was designed primarily as a family day cruiser with adequate beam to insure a stable boat, a large deep cockpit for safety, high freeboard for dryness in rough water and generous sheltered space for weather protection. With only a slight modification to include additional lockers for stowing a small amount of additional equipment, "Silver Fin" becomes a satisfactory camping cruiser for two, especially in tidewater areas where it is impractical to sleep ashore.

5 pages, 3 plate(s)

$6.95
Squall (Pub. No. 5156)

by A. Mason

Designed for the young-in-heart and built of plywood, this 14-foot runabout can attain speeds of almost 32 miles per hour.

"Squall" has all the features of a modern sport runabout, but being built of waterproof plywood sheets, the construction has been simplified to produce a lightweight strong hull suitable for many uses. "Squall" was designed to handle well at all speeds using any outboard motor from 10 to 30 horsepower. With a total crew weight of not over 225 pounds, a 10-hp motor is fully capable of driving "Squall" up to 18 miles per hour; 22-hp will do close to 27 miles, and a 30-hp motor is almost capable of 32 miles per hour. Of course, it is understood that the best propeller combination as recommended by the manufacturer and a thorough engine tune-up is a necessity to reach these speeds. The modern trend is evident in the twin tail fins; their principal purpose is to partially hide the motor in profile view. However, if the feature does not appeal, simply omit the tail fins as they will have no effect on the performance, and while they do not add to the structural strength of the boat, they may aid in keeping the motor drier when running in a choppy sea.

4 pages, 2 plate(s)

$6.95
Mary Jane (Pub. No. 5157)

by Robert M. Steward

Measuring 17 feet 7 inches, this round-bottom inboard launch offers the challenge of real boat building, but on a small scale.

"Mary Jane" is a round-bottom launch 17 feet 7 inches overall, with a beam of 5 feet 8 inches and shallow draft of 14 inches. This boat is powered with a small inboard engine. The cost of fuel will be very small and the tank holding a full day’s supply is a permanent part of the boat, but the owner must be content with moderate speeds of up to ten miles an hour depending on the load. Mary Jane was designed for those amateurs who would like to try their hand at a real boat building job on a small scale. It is a matter of opinion, of course, but a round bottom hull of light construction is not much more difficult to build than a hard chine boat. The light frames and planking are easy to handle and the experience gained from her construction will be valuable should a larger boat be attempted in the future.

4 pages, 2 plate(s)

$6.95
Cobia (Pub. No. 5158)

by Robert M. Steward

"Cobia" is a type of small power boat that is enjoying great popularity as a combination day cruiser, overnighter for two and sport fisherman. The cabin has two comfortable berths, an enclosed toilet room and small but adequate galley space with ice chest, utensil and food locker, sink and stove. There is storage space for gear under the berths and in the forepeak. Abaft the cabin there is more than twelve feet of cockpit, ample space for loafing or fishing. The “bridge” can be covered during poor weather with a folding navy type canvas shelter as shown dotted on the outboard-profile drawing. The length overall is twenty-five feet six inches, beam is eight feet five inches to the outside of the planking, and the draft is about two feet depending upon the weight of fuel, crew and equipment.

4 pages, 4 plate(s)

$6.95
Chipmunk (Pub. No. 5170)

by Henry Clark

The 16-Ft. "Barnaby" was the answer to many hundreds of home builders whose families have lived on and roamed over the waterways, and water skiied like mad at the urge. But herewith we are going to create another bunch of builders who will not only go faster on the water, trail faster on the road, build faster, at less cost, get a stronger hull, but will be able to camp aboard under a shelter. We refer, of course, to the 14-ft. "Chipmunk", so named because it can dart about so quickly. The average handy man, for a few weeks effort, will gain a very fast hull with a safe 5-ft. 6-in, beam, and many unusual construction features. Out on the water you’ll sport lines that will be as stylish as the rest. A 17-year-old boy and his father built the test model from my pencil roughs working so fast I could hardly keep up with figures. If the cuddy shelter isn’t a must with you leave it off and hare an open runabout. As to power we didn’t mess around. We gave the transom what it can take. With the 40 hp Lark on, the caperer really lives, while pulling two skiers pell mell. With two in, you can clock 30 mph, and still get a soft ride with the semiround bottom. With an 18 hp Fastwin on, the camper still cuts the water at 22 mph, more or less by load, and gets one skier up. The hull is 3/4-in, plywood, the strongest planking you can use for this short size.

8 pages, 2 plate(s)

$7.95
Hustler (Pub. No. 5171)

by Henry Clark

Speedabout is low in cost, high in performance.

For the Man or boy who wants the action of the racing gang, at a much lower cost and with easier construction, this boat was designed. After some months of creaming around in ffiy 9-ft. "Bubbles", one boy asked for a faster job, one which could carry a few friends along and still go car-top if necessary. With this in mind, the layout yielded a hull as simple as "Bubbles", but far roomier, sturdier, and faster. Transom is uniquely braced to take up to 35 hp if the driver knows his stuff, but this driver was content with an 18 hp Evinrude, with remote controls. This drove the boat 30 mph average with an all-purpose prop. Even with a smaller 10 hp on, we clocked 24 mph on our Aqua Meter. To the looks of a hydro was added the rakish fins which impart high freeboard and ward off splash. And though the ribs are simple, straight rips, the bottom is semiround, giving a soft ride and rolling turns. Center wheel dash unit is also front seat back rest. Gas tank goes in front when going solo.

16 pages, 1 plate(s)

$8.95
Skimabout (Pub. No. 5173)

Plaster-finished mold shapes fiberglass hull.

Designed and built for a family, Skimabout is as big a runabout as anybody could want. She’s 17 feet with a 7-foot beam and has a 71/2-foot cockpit behind the forward seats. What’s more, there’s plenty of depth from floor to gunwale so that you’re always in the boat rather than halfway out. With an eye to reduced maintenance, the hull is Fiberglas, laid up on an inexpensive mold made from lumber, lath and plaster. There are three layers, two of cloth with one of matte between. When the three are laminated with polyester resin they form a tough, leak-proof shell which is easily removed from the mold for rapid finishing of the boat.

12 pages, 3 plate(s)

$7.95
Wanderer (Pub. No. 5178)

by D.H. Smith

This 23-footer is an experienced world traveler.

With increased outboard engine horsepowers, it has been practical within recent years to operate some fairly large cruisers and other types of craft with this form of 2-cycle power. Wanderer is a big beamy craft which certainly represents the larger classification of outboard cruising boats. Because of her size and design characteristics, several cabin arrangements are possible within her spacious hull. Within reason, her performance will not be appreciably affected by certain optional interior arrangements as they will not cause significant differences in loading characteristics. She possesses a fairly deep-V entrance and a good clean run of her aft body lines which will give her a good turn of speed with a minimum of pounding. Recommended horsepower is two 35 or 40 horsepower outboard engines in either long or standard shaft versions, depending on the transom height chosen. "Wanderer’s" stability is excellent due to her considerable beam and ample deadrise. With a generous flare in her topsides, she will be a dry boat when running in choppy seas.

4 pages, 3 plate(s)

$6.95
Jet Joe (Pub. No. 5179)

by William D. Jackson, Naval Architect

A Sturdy, High-Speed Utility Racing Hydroplane and/or Ski Boat

Put it in water and—like a certain widely advertised soap—Jet Joe does everything. Not only does it do double duty as a utility and sports boat—hauling passengers, pulling water skiers and the like—but it also qualifies as a closed-course and marathon racer, fulfilling all requirements of the American Power Boat and National Outboard associations for sanctioned racing with stock, two-cylinder outboard motors of the Evinrude Bi~ Twin type.

16 pages, 5 plate(s)

$8.95
Zipp (Pub. No. 5180)

by William D. Jackson, Naval Architect

If you want a fast, sporty, and highly manouverable hydroplane, "Zipp's" your baby. Designed to be used with outboard motors of from 10 to 50 hp, it is a little over 13 ft. long and has a 59½ in. beam. "Zipp" seats 2 passengers in small after-cockpit, and, if you have another intrepid pair of friends who want to come along, you can lift the forward hatch clear and take off as a foursome.

10 pages, 2 plate(s)

$7.95
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