Motor Boats & Launch Catalogue

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CATALOGUE CONTENTS

SECTION PAGE

Motor Boats up to 16’ in Length MB1

Motor Boats 16’ to 20’ in Length MB30

Motor Boats 21’ to 30’ in Length MB44

Price List MB97

Motor Boats over 30’ in Length MB65

Classic Motor Boats MB78

MOTOR BOATS & LAUNCHES FROM THE SELWAY FISHER DESIGN CATALOGUE

Welcome to our catalogue of practical designs for the motor boat and launch enthusiast. We have a wide range of power driven craft to choose from ranging from traditional craft to more contemporary designs. The designs use both the ply/epoxy and strip plank methods of construction. Our plans are fully detailed for the home builder and our practical experience over the past 25 years ensures that each design is a practical building proposition for the average boat builder. For instance, whilst we use modern epoxy gluing and filleting techniques extensively in the construction of our smaller plywood craft, for our larger ply yachts we use a combination of ply/epoxy and ply on frame techniques. This means that the builder has the benefit of our accurate computer generated frame and girder shapes which are slotted together to give a rigid framework to work as a basis for the construction. . This is all explained in our Manual of Plywood Boat Construction for Larger Craft and allows the builder to tailor the construction method he uses to his own needs. We also have a growing number of round bilge strip plank designs and this is a method becoming more popular combining, as it does, the finish and looks of a conventional round bilged hull and a relatively straight forward and low skill method of construction - see our Strip Plank Boat Construction manual.

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MOTOR BOATS & LAUNCHES up to 16’ in Length

List of Motor Boats & Launches up to 16’

Design Page

Power 1 MB2

Power 1.2 MB4

Power 14 MB6

8’ Skiffle Junior Motor Boat MB7

12’ Sandmartin Simple Runabout MB8

9’6” Little Harrier Motor Dory MB10

13’ Harrier Motor Dory MB11

Shetland 14’ Workboat MB13

Rascal 15’ Motor Dory/Skiff MB17

Curlew 16’ Motor Punt MB19

Cape Cod 16’ Semi Dory MB20

15’4” Fly Fishing Coble MB22

15’ Lobster Boat MB24

15’ Electric Skiff MB15

15’1” Port Pegasus Rowing & Motor Boat MB27

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POWER 1

16’x5’6’’ ply motor launch of ultra simple construction using pre-shaped ply hull panels, frames and transom. The chine joints are completed with epoxy resin fillets and tape making construction quick. A weekend’s work will see the hull panels marked out, cut, stitched together, frames and transom in place and all seams epoxied. She uses 4 sheets of 6mm and 3 sheets of 12mm ply in her basic construction (hull, seats etc). Approximately 250 lbs lightweight depending on how you fit her out. A 20 hp outboard will give a speed of around 25 mph. She can be fitted out to your own requirements. She was originally designed for Scottish waters where she has been very successful.

Power 1 Particulars

LOA 16' 4.88m

Beam 5'6" (mk 1) 6' (mk 2) 1.68m and 1.83m

Hull Mid Depth 2'3" 0.68m

Draft 9" 0.23m

Approx. Dry Weight 250 lbs

Engine Up to 75 hp

Speed 24 knots with 20 hp

Hull Shape U shape - flat bottom with 3 planks per side (mark 2)

Construction Methods Stitch and tape

Major plywood requirements for hull 4 x 6 or 9mm sheets 3 x 12mm sheets

Guidance Use General purpose for up to 6 adults - coastal

Drawing/Design Package 3 x A1 drawings + 5 x A4 instruction/spec sheets

Additions and alterations included with the plans Mark 2 with 3 chines per side and 6' beam.

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An example of the Mark 2 Power 1 with it's additional chine built by Darren Atherton.

Below is an example by Patricio Spina.

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POWER 1.2

Power 1.2 Particulars

LOA 16' 1" 4'9"

Beam 6'5" 1.96m

Hull Mid Depth 2' 5 1/2" 0.75m

Draft 14" 0.36m

Approx. Dry Weight 400 lbs (open version) 680 lbs (cabin version)

183 kg 310 kg

Engine Up to 50 hp

Speed 24 knots with 25-30 hp

Hull Shape U shape - flat bottom with 2 planks per side


Major plywood requirements for hull 7 x 9mm sheets + 7 further sheets for the cabin/wheelhouse

Guidance Use General purpose for up to 6 adults (open version) - she is easily extended (or shortened) - estuary/


Additions and alterations included with the plans Mark 2 version - 20' x 6'10" (outside of hull skin) Mark 3 version - 21'x8'

The Power 1.2 is a development of our Power 1 design. She has increased beam and the chine has been lowered to give a more stable shape so that her side decks can be used comfortably. The drawings give details for a cabin arrangement with 2 full length berths and plenty of stowage for cooking gear. The aft end has been kept as a parallel section so that increasing or decreasing her length is quite simple and she can be fitted out to suit your own requirements (we will be happy to advise and draw up details of any particular changes to the arrangement shown on the drawings). Construction is quick and simple and she can take outboards up to 50 hp. LOA 16'1" (4.9m); Beam 6'5" (1.96m); Construction weight 400 lb. (183 kg) - open version; 680 lb.(310 kg) - cabin version.

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A Power 1.2 built by Malcolm Kirke in the Philippines

A modified and extended Power 1.2 built by the Clark family.

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POWER 14

Power 14 Particulars

LOA 14'6" 4.42m

Beam 5'6" 1.67m


Draft 9 1/2" 0.24m

Approx. Dry Weight 375 lbs (open version) 475 lbs (cuddy version)

170 kg 215 kg

Engine Up to 35 hp for general all round use

Speed 18 knots with 20hp

Hull Shape U shape with 3 planks per side

Construction Methods Stitch and tape and ply over frame

Major plywood requirements for hull 11 x 6mm sheets (+ 2 sheets for the cuddy) 1 x 9mm sheet

Guidance Use Up to 4-5 adults estuary/coastal


Additions and alterations included with the plans

The hull for this launch was originally based on our Power 16 model but instead of going for a simple flat bottom panel, we have used a 'V' bottom shape. Whilst this makes construction time a little longer it gives a slightly better ride in choppy conditions. The plans give details for both simple stitch and tape and ply on frame construction. She has a large open cockpit with plenty of locker space. Forward is an optional cuddy. 11 sheets of 6mm ply plus a further sheet of 9mm are used for the hull construction and 2 sheets of 6mm ply are used for the optional cuddy. LOA 14'6" (4.42m); Beam 5'6" (1.67m); Approx wht. 375 lbs (170 kg); for the open version and 475 lbs (215 kg) for the cuddy version.

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8’ SKIFFLE JUNIOR MOTOR BOAT

8' Skiffle Particulars

LOA 7'5" 2.26m

Beam 4'1" 6.35m

Hull Mid Depth 1' 4 3/4" 0.42

Draft 6" 0.15m

Approx. Dry Weight 90 lbs 41 kg

Engine 7 hp + outboard

Hull Shape U - flat bottom with 2 planks per side


Major plywood requirements for hull 4 x 6mm sheets

Guidance Use 1-2 children/adults inshore



The 8' Skiffle is a simple motor boat designed for children to use although she can accommodate a small adult. The hull uses a flat bottom panel with single bilge and side panels and uses simple stitch & tape methods in her construction. She can take outboard motors of around 5 to 7hp - she could take more powerful motors but 7hp is a safe limit. Construction takes just 4 sheets of 6mm plywood.

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12’ SANDMARTIN SIMPLE RUNABOUT

12' Sand Martin Particulars

LOA 12'2" 3.7m

Beam 4' 11" 1.5m


Draft 6" 0.15m


Engine 15 hp + outboard


Hull Shape V bottom single chine



Guidance Use Inshore/estuary for 5-6 adults



Using between 5 and 6 sheets of 6mm ply the Sand Martin uses simple stitch and tape technology in her construction. She can be fitted out in a number of different ways but the standard arrangement shows two thwarts with side benches aft and a foredeck with stowage space below. Weight will be approx. 120 lbs (54kg) and she can take outboard engines between 2 and 15 hp. With a beam of 4'11" (1.49m), she has plenty of room for fishing and is a very stable craft.

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The example of the Sandmartin below was built by Kevin Ansell using sheets of grp in much the same way as a stitch and tape ply hull would be built.

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9’6” LITTLE HARRIER MOTOR DORY

9'6" Harrier Particulars

LOA 9'6" 2.9m

Beam 4'7" 1.4m


Draft 6" 0.15m


Engine Up to 20 hp outboard

Speed 20 knots with10 hp




Guidance Use Estuary with 3-4 adults



This is a smaller sister to the 13’ Harrier—she has the same simple ‘V’ bottomed hull shape which has plenty of stability and room in such a short length for fishing and pic-nicking. Under the seats can be used for flotation and/or stowage and she can take outboards up to 20hp.

She is car-topable and uses 5 sheets of 6mm ply. LOA 9’6” (2.90m); Beam 4’7” (1.40m); Approx. Wht. 85lbs (39kg).

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A Little Harrier by Cosmin Buhu.

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13’ HARRIER MOTOR DORY

The Harrier is a simple single chined 'V' bottomed stitch and tape ply dory for outboard power. She has been designed to give as much carrying capacity as possible in a 13' car-toppable boat making her suitable for fishing and picnicking as well as for use as a tender to a motor yacht. The hull can be fitted out to suit - the standard arrangement shown on the plans has aft and centre seats plus a fore-deck/seat - she could take a small cuddy. Construction uses 7 sheets of 6mm ply. LOA 13' (3.97m); Beam 5'3" (1.6m); Approx Wht. 145 lbs (66 kg).

Harrier 13' Particulars

LOA 13' 3.97m

Beam 5'3" 1.6m


Draft 6" 0.15m


Engine Outboards up to 35 hp





Guidance Use Estuary with 5-6 adults



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Left is an example by John Barton with the ply frames epoxied in place and be-low finished with a centre console.

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SHETLAND 14’ WORK BOAT

Shetland 14 Particulars

LOA 14'3" 4.34m

Beam 6' 1.83m

Hull Mid Depth 2' 0.61m

Draft 8" 0.2m

Approx. Dry Weight 350 lbs (plywood)

Engine Up to 20 hp

Hull Shape U shape with 3 planks per side

Construction Methods Steel/aluminum - also plywood


Guidance Use Estuary/coastal with 4-6 adults



This sturdy craft has been designed for a client in Scotland who wanted a rugged general purpose boat for fishing and diving in rough water. She may only be 14’ long, but she is for all that, a large boat and she incorporates both integral buoyancy tanks and a water ballast tank. There is plenty of seating plus an outboard well and she may be fitted out with an inboard engine. The standard construction plans have all the hull panel and frame shapes for steel construction but she can of course, be made from plywood using stitch and epoxy methods. LOA 14’3’’ (4.34m); Beam 6’ (1.83m); Draft 8’’ (0.2m); Approx. weight 350 lbs.

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An example of the Shetland 14 built in aluminium by A.S. Alucraft

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15’ ELECTRIC SKIFF

15' Electric Skiff Particulars

LOA 14'7" 4.45m

Beam 3'9" and 4'3" (mk2) 1.14m and 1.3m (mark 2)

Hull Mid Depth 1' 2 1/2" and 1' 4 1/2" (mark 2)

0.37m and 0.42m (mark 2)

Draft 4" 0.12m

Approx. Dry Weight 75 lbs

Engine 1-3 hp outboard



Major plywood requirements for hull 4-5 x 6mm sheets

Guidance Use Inland/estuary with 2-3 adults


Additions and alterations included with the plans Mark 2 hull panels

A lovely little skiff made from four sheets of 1/4’’ plywood using simple stitch and tape techniques. She has a fine entry for moving quickly and easily under electric outboard power (a conventional petrol outboard may also be used) with a stern wide enough to take someone sitting comfortably without upsetting the trim of the boat too much. 14’7’’ x 3’9’’ and approx 75 lbs., she is ideal for car topping to remote canals and rivers for some quiet fishing. She may be adapted with a trolley for wheeling around locks or will take an outboard well if preferred.

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The 15’ Electric Skiff

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15’ RASCAL MOTOR DORY/SKIFF

This is a simple and very easily built motor dory for use with outboards up to around 50 hp in size. She can either be made by wrapping the pre-shaped sides around the frames, fastening on an external chine stringer and then putting the bottom ply on oversize, or, by simple stitch and epoxy methods using pre-shaped ply bottom and side panels which are given on the drawing. She can be fitted out very much to suit your own requirements and she could take a cuddy or small cabin. She uses 7 sheets of 9mm ply and has a length of 15’ and beam of 5’6’’.

15' Rascal Particulars

LOA 15' 4.58m

Beam 5'6" 1.68m


Draft 5 1/4" 0.13m


Engine 2-8 hp (up to 50 hp)


Hull Shape Flat bottom single chine



Guidance Use Up to 6 adults - estuary/coastal

Drawing/Design Package 2 x A1 drawings +

Additions and alterations included with the plans Panel shapes for 18' x 6' (5.49 x 1.83m)

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This Rascal was built by Mr. G. Jackson

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16’ CURLEW MOTOR PUNT

16' Curlew Particulars

LOA 16' 4.88m

Beam 4'6" and 6' (mark 2) 1.37m and 1.83m (mark 2)

Hull Mid Depth 1' 6 1/2" and 1' 11" (mark 2)

0.47m and 0.58n

Draft 7" 0.18m


Engine 2-20 hp

Hull Shape Single chine flat bottom (2 chine for mark 2 ver-sion)



Guidance Use 4-6 adults - estuary


Additions and alterations included with the plans Mark 2 hull panels with 6' (1.83m) beam

This is a very simple stitch and tape design using 5 sheets of 9mm (3/8’’) ply with pre-shaped hull panels and transoms. With a beam of 4’6’’ and a mid depth of 16’’ she has plenty of room for fishing, camping or for family pic-nics. She may be rowed but is primarily designed to be powered by an outboard of between 2 and 20 h.p. The design is very adaptable and she could eas-ily be fitted out with a cuddy or sailing rig. Curlew may also be made in two halves for easy transport. Details are also given for a deeper version.

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16’ CAPE COD SEMI DORY

16 Cape Cod Dory Particulars

LOA 16' 4.88m

Beam 6' 1.83m


Draft 8" 0.2m


Engine 4-35 hp

Hull Shape Dory - flat bottom plus 4 planks per side

Construction Methods Clinker ply, stitch and tape and strip plank

Major plywood requirements for hull 7 x 6mm sheets 2 x 9mm sheets

Guidance Use 4-6 adults estuary/coastal

Drawing/Design Package 1 x A0 drawing + 3 x A1 drawings + 6 x A4 instruc-tion/spec sheets


The Cape Cod is a motor dory based upon the Swampscott model with it's flat but rockered bottom panel and 4 planks per side. Unlike the sailing Swampscott, the bottom is kept fairly wide aft so that she can take a reasonable size of outboard (up to 35 hp). The plans show details for both the simple stitch and tape and clinker ply methods of construction and the standard fit-out shows a foredeck plus narrow side decks and storage both fore and aft. She could be fitted out with a cuddy or small cabin etc. LOA 16' (4.88m); Beam 6' (1.83m); Approx. wht. depending on fit-out 300 lbs (136 kg).

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A Cape Cod built using the clinker ply method by Lakeland Wooden Boats.

Left and below a Cape Cod by Joris van der Ahe.

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15’4” FLY FISHING COBLE

This design has been based upon our Northumbrian Coble designs—the client wanted a very stable seaworthy design mainly for outboard power but which could also be rowed and take a sail plan. Basic construction is for stitch and tape but the moulds/jig details are given for clinker/ply construction. The standard fit-out has a central bench seat/oar locker and she can take at least 6 adults.

15'4" Fly Fishing Coble Particulars

LOA 15'4" 4.68m

Beam 5'2" 1.58m


Draft 6 1/2" 0.17m


Engine 3-10 hp

Hull Shape Multi-chine with 5 planks per side or round bilge - both with tumblehome aft

Construction Method Stitch and tape, clinker ply or strip plank

Major plywood requirements for hull 9 x 6mm and 1 x 12mm sheets of plywood

Guidance Use 4 adults +

Drawing/Design Package 6 x A1 drawings + 7 x A4 instruction sheets

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The example below is the original stitch and tape ply version of the Fly Fishing Coble, this one by Matthew Clark.

These photos are of a strip planked version beautifully built by Serdar Gulten.

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15’ LOBSTER BOAT

15' Lobster Boat Particulars

LOA 14'11" 4.57m

Beam 5'11" 1.8m


Draft 8" 0.2m


Engine 5-30 hp

15 hp with 10 hp

Hull Shape Round bilge with tumblehome aft

Construction Methods Strip plank

Major strip wood requirements for hull 2460' of 3/8" x 3/4" (750m of 10x19mm) WRC

Guidance Use 4-6 adults - estuary/coastal



This motorboat is based on a typical Maine Lobster boat and has been designed for strip plank construction (although she could be built using clinker/ply techniques using the same moulds). The hull has a high freeboard with flat planing sections aft and tumblehome worked into the hull aft.

She is essentially an open boat with a narrow side decking and bench seating with stowage under, however, she could be fitted out in a number of ways and could take a small cuddy/fore cabin.

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The above example of the 15' Lobster boat is by Phil Padovano.

This example is by Colin Morgan.

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15’ 1” PORT PEGASUS ROWING & MOTOR BOAT

15' 1" Port Pegasus Particulars

LOA 15'1" 4.59m

Beam 5'7" 1.7m


Draft ex engine Draft incl engine

7 1/2" 1' 2 1/2"

0.19m 0.37m

Approx. Dry Weight ex engine Approx. Dry Weight incl engine

331 lbs 573 lbs

150 kg 260 kg

Hull Shape Round bilge with 8 planks per side

Construction Methods Clinker ply

Major plywood requirements for hull 1 x 6mm sheet 8 x 9mm sheets

Guidance Use 5-6 adults

Drawing/Design Package 5 x A1 drawings + 3 x A4 instruction sheets


The Port Pegasus is a clinker boat which may be used as a pure rowing boat or fitted with a small diesel (ie Farymann 7.5) as a small motor launch with classic appearance.

As a general purpose launch, she could be fitted out in a variety of different ways—ie. With a small cuddy, centre console arrangement or even with an appropriate sail/keel plan. The drawings give the computer faired mould shapes and building jig details for modern clinker construction—framing incorporates the plywood bulkheads etc. Mid hull depth is 1’9” (0.53m).

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A fine example by Graeme Clark.

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Graeme Clark built his e x a m p l e w i t h a n additional plank on the topsides making the hull slightly deeper..

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MOTOR BOATS & LAUNCHES 16’ to 20’ in Length

List of Motor Boats & Launches 16’ to 20’

Design Page

Power 1.3 MB31

Power 2.2 MB32

19’ Ceecan MB34

Rathlin 20’ Motor Yacht MB35

Jarvis 17’ Clinker Motor Launch MB37

Rufus 17’ Motor Boat MB39

19’ Ruby Motor Launch MB43

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POWER 1.3


LOA 17'2" 5.23m

Beam 7'6" 2.28m


Draft 10" 0.25m


Engine Up to 100 hp


hull Shape U - flat bottom with 2 additional planks per side

Construction Methods Aluminum (or stitch and tape ply)





The Power 1.3 is a development of the original Power 1 design. In this case, we were asked to produce a simply built hull with more capacity and suitable for offshore and estuary conditions. We have retained the flat bottom section which eases and quickens construction but increased both the beam and hull depth substantially. The drawings give details for welded aluminium construction but she could easily be made using the hull panel shapes given on the drawings, in plywood. Water tight side bench seats are shown aft and a separate buoyancy compartment forward but fit out can be altered to suit and a cuddy or wheelhouse could be fitted. LOD 17'2" (5.23m); Beam 7'6" (2.28m); Construction weight in aluminium 595 lbs (270 kg).

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POWER 2.2


LOA 20' 6.1m

Beam 7'8" 2.34m

Hull Mid Depth 3'4" 1m

Draft 12" 0.3m

Maximum Headroom 6'4" 1.93m


Engine Outboards up to 150 hp


Hull Shape U shape with 3 planks per side and round bilge (for strip planking) - also V bottom single chine

Construction Methods Stitch and tape and strip plank


Guidance Use 6-8+ adults offshore


Additions and alterations included with the plans Round bilge strip plank moulds and jig option V bottom single chine option

This craft is a widened and a more sophisticated version of our Power 2 design. The bottom panel has been slightly veed to give a softer ride and her depth has been increased. This along with her wider beam enables her to be fitted out with a more extensive cabin structure and with larger tanks etc. Construction starts by assembling the frames and the transom onto the ply girder (backbone). The builder may then attach chine stringers to the frames and fit the hull panels oversize (to be trimmed later) use the panel shapes given on the drawings and stitch their edges together along the chines, later to be finished with epoxy filleting. The drawings show the full hull construction and details of a wheelhouse and forward cabin which may be altered to suit the builder's own requirements. Engines may be mounted aft or in a conventional drive position depending on how the boat is to be fitted out. Her hull shape has a parallel section aft which allows her to be lengthened or shortened as required. 7 sheets of 12mm and 12 sheets of 9mm ply are used in the construction of the basic hull. LOA 20' (6.1m); Beam 7'8" (2.34m); Draft will depend on fit out but the hull excl. skeg will have a draft of 1' (.3m) at a displacement of 3750 lb. (1700 kg) - construction wht. approx. 1700 lb. (771 kg). Power up to approx. 150 hp.

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2 variations on the Power 2.2 by Matthew Clark —above, with higher cabin/wheelhouse which is ideal for river/estuary use—and below with lower wheelhouse for higher speed use where more stability is required going into tight corners.

This example is by Matthew Clark and achieved 30 knots with a 100hp outboard.

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CEECAN 19

Ceecan 19 Particulars

LOA 19' 5.79m

Beam 6'10" 2.08m


Draft 12" 0.3m





Construction Methods Ply over frame

Major plywood requirements for hull 7 x 5mm sheets 12 x 6mm sheets 20 x 9mm sheets

Guidance Use Canal/inland



CEECAN is a simple river cruiser for outboard power. Her hull may be stretched or shortened to suit and her superstructure and deck layout changed to you own requirements. The drawings give details for the hull and superstructure construction. She may be simply fitted out to your own requirements or we can draw up an internal arrangement for you. The hull has a simple 'V' bottom shape and construction is based upon ply sheets over a simple framework with the bow made up from 2 layers of ply. For most river and canal work a 5 to l0 hp outboard will suffice and she could be altered to take an inboard engine.

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RATHLIN 20 MOTOR YACHT

Our Rathlin design is not the type of motor yacht that you would normally see these days as a new ‘‘modern’’ design. Most new craft of the motor type to come off the drawing board now, are of the large plastic ‘‘patio door’’ type with maximum space provided in the shortest length possible. I would not criticize these boats - for what they are and the market that they are aimed at, they do a good job - especially when trying to get the most for your money out of marina charges. Rathlin, on the other hand, goes in the opposite direction and for a 20’ motor yacht simply offers you the most basic of accommodation with a wc, small galley and 2 berth dinette and an open wheelhouse with a large aft cockpit. She is every bit traditional 1950’s in style and layout. With simple elegance she would transport you on estuary and coastal trips without fuss, and against today’s motor boats, she would stand out as an example of quality. The drawings show full details for strip planked construction with computer faired mould shapes along with machinery and fit out details. She could also be made with ply/epoxy methods. LOA 20’4’’ (6.20m); LWL 18’4’’ (5.73m); Beam 7’4’’ (2.24m); Draft 2’4’’ (0.70m); Approx. Displ. 1600 kg (3528 lb); Engine 10-30 hp.

Rathlin 20 MY Particulars

LOA 20'4" 6.2m

Beam 7'4" 2.24m


Draft 2'4" 0.7m

Maximum Headroom 5'10" (Wheelhouse) 4' (Cabin)

1.77m (Wheelhouse) 1.2m (Cabin)

Displacement 3528 lbs 1600 kg

Engine 10-30 hp inboard

Hull Shape Round bilge


Major strip wood requirements for hull 1970' of 3/4" x 1 1/4" (600m of 18x30mm) WRC

Guidance Use Estuary (coastal for mark 2 version)



Details for deeper keel and sail plan for a motor sailer version. Mould shapes/jig etc for a beam of 7'10" (2.39m) and an increase in hull depth of 4" (0.1m) giving 6" (0.15m) more headroom overall.

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Additional drawings are now available to construct the Rath-lin as a motor sailer. The draw-ings include details to alter the skeg to make it into a ballast keel and details of the spars, tabernacle etc.

Sail Area is 15.89 sq.m (171 sq.ft). and the ballast is 450 lbs (200 kg).

IMPORTANT NOTE—included now, with the standard draw-ings are the mould shapes for a larger version of the Rathlin hull—the hull depth is in-creased by 4” (0.10m) and the beam by 6” (0.15m) giving an overall beam of 7’10” (2.39m) and an increase in headroom of 6” (0.15m).

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A Rathlin under construction by Bob Grutzmacher.

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JARVIS 17

Jarvis 17 Particulars

LOA 16'11" 5.16m

Beam 6'7" 2.04m


Draft 1'3" 0.38m



Engine 25'30 hp outboard


Construction Methods Clinker ply

Major plywood requirements for hull

4 x 6mm sheets 8 x 7 to 9mm sheets 8 x 9mm sheets 1 x 18mm sheets

Guidance Use Estuary/coastal



The Jarvis 17' motor launch has been drawn up for clinker/ply construction - a building jig is made which consists of chipboard mould shapes mounted on a strongback. Ribbands (stringers) are inserted into the moulds at each lap and these help in defining the shape of each plank. The ribbands can be left in the hull if 6mm ply is used for the planking or, be removed as part of the jig if 9mm ply planking is used. The launch has 2 berths in a cabin/cuddy and she has a large cockpit for fishing. Outboards up to 25-30 hp may be used for most purposes although she will take bigger.The bench seats in the cockpit have stowage lockers.

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A GRP version of the Jarvis 17

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Rufus 17 Particulars

LOA 17' 5.18m

Beam 7'2" 2.22m


Draft 1/4" 0.4m




Hull Shape U shaped multi-chine with 3 chines per side

Construction Methods Stitch and tape/ply over frame

Major plywood requirements for hull 22 x 9mm sheets for hull For deck/wheelhouse 4 x 4mm sheets and 7 x



Additions and alterations included with the plans Panel and frame shapes for 20' x 8' (6.1m x 2.44m) version.

The RUFUS 17' motor boat is a simple rugged craft with jaunty good looks. She has 3 chines per side and plenty of freeboard and beam, giving her an excellent carrying capacity and very good stability. She can be made as a simple open launch, in which case she would make an excellent club boat, or she can have a wheelhouse/cabin. The standard wheelhouse has bench seating, stowage spaces and a forward central steering position. With this arrangement there is plenty of room in the aft cockpit for bench seating. The outboard is housed in a protective well and she could be fitted with an inboard engine. Construction uses pre-shaped plywood hull panels and girder shapes which can either be stitched and taped together and the plywood frames inserted before finishing the chines in epoxy, or the ply frames and girders can be erected as a framework with square sectioned stringers at the chines and the hull panels then fitted. The 'V' gap between the side of the stringers and the adjacent hull panels can then be filled with thickened epoxy to form a very strong chine join. For those with limited building space and/or budgets, the hull may be built in four pre-fabricated sections for later assembly. She may be fitted out in a variety of different ways to suit the builders' own requirements.

RUFUS 17/20

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A stitch and tape Rufus 17 with inboard engine by Frank Kert

Above—the first Rufus by John Aley

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A Rufus 20 being built ply plank over frame by Richard Hulbert

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Below another 17’ Rufus

Left a glass Rufus 20 fitted out as a fishing boat.

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Shaun Squyres’ 20’ taxi/workboat/tug version of the Rufus

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19’ RUBY LAUNCH

The Ruby 19 is based on our Ruby 22 double chine plywood steam launch. In the case of the Ruby 19 a client wanted a shorter version of the 22 to be built in steel which meant widening and deepening her to take the steel weight. Having produced the steel work drawings we have decided to make a complete set of plans for both the steel and plywood version. If she is built in plywood, she has a very high carrying capacity and would make a roust work launch. The plans show an open arrangement but there is no reason why she could not take a cabin with accommodation and/or a wheelhouse. The plans show details for steel construction as well as ply over frame construction.

Ruby 19 Particulars

LOA 19' 5.80m

Beam 6'7" 2.04m


Draft 2'5" 0.73m

Approx. Dry Weight in plywood 2536 lbs 1150 kg


Double chine V bottom

Construction Methods Steel or ply over frame




Additions and alterations included with the plans Steel and Plywood hull construction shown.

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MOTOR BOATS & LAUNCHES 21’ to 30’ in Length

List of Motor Boats & Launches 21’ to 30’

Design Page

Power 2 MB45

Power 3 MB47

Power 225 MB49

26’ GP Workboat MB50

Lambay Island 22’ Steel Hull MB51

Mylor 27’ Fishing Boat Hull MB55

Rufus 22 MB56

23’ Canal Cruiser MB58

21’ Ijssel Strip Planked Launch MB59



Howth Head 22’ Plywood MB53

26’ Steel Saltee Island MB64

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POWER 2

Power 2 Particulars

LOA 21' 6.41m

Beam 7' 2.13m


Draft 14" 0.36m

Maximum Headroom 6' 1.83m


Engine Up to 150 hp outboard


Hull Shape U - flat bottom with 2 planks per side



Guidance Use Coastal


Additions and alterations included with the plans Mark 2 version with 21' length and 3 planks per side

A 21’ x 7’ bigger sister to the Power 1 design using the same easy construction method and having a similar double chine construction with a flat bottom panel simplifying her building and producing an easy planing hull form. The hull, seats and cabin take around 13 sheets of 9mm and 5 sheets of 12mm ply and she weighs approx. 500 lbs. excl. engine. Both the Power 1 and 2 designs are designed for multi role use either as fast launches or as load carriers and because both have parallel sectional shapes aft, they can be shortened or stretched in length to suit your own requirements. One example of a Power 2 stretched to 24’ has been used as a dive support craft in the Bristol Channel and Irish Sea. With twin 40 hp outboards and fully loaded she could plane with speeds of over 30 knots.

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The Power 2

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POWER 3

Power 3 Particulars

LOA 24'7" 7.5m

Beam 8'10" 2.7m

Hull Mid Depth 3' 11" 1.2m

Draft 2'6" 0.74m

Maximum Headroom (cabin) (wheelhouse)

5'7" 6'3"

1.7m 1.9m


Engine 30 - 50 hp inboard

Hull Shape V bottom with 3 planks per side

Construction Methods Ply over frame and stitch and tape


For hull :- 18 x 6mm sheets 6 x 9mm sheets 8 x 12mm sheets For deck/superstructure :- 13 x 6mm sheets

Guidance Use Coastal/offshore


Additions and alterations included with the plans 1930's style hull/cabin details Outboard well

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Soon after our Power 2.2 left the drawing board, we were asked to extend it and produce a design which, in a compact form, could accommodate a large aft cabin with a central wheelhouse and forward dinette. So the beam has been increased to 8’10’’ and the length to 24’7’’ but the same easy riding ‘U’ hull form with double chine has been used. This gives plenty of internal volume and weight carrying capacity along with high stability. The plans for the Power 3 show details for a forward dinette with a good sized galley and a separate WC and shower compartment. The wheelhouse has an ‘L’ shaped settee which can also form a bunk and the aft compartment has room for a double berth along with a dresser. The drawings show a single 30 hp engine arrangement but twin 50 hp engines could be installed. Construction details are given for both ply/epoxy construction using computer generated hull panel shapes and for ply construction over a framework of ply bulkheads and stringers. LOA 24’7’’ (7.50m); Beam 8’10’’ (2.70m); Approx. Draft 2’6’’ (0.74m); Displ. 6500 lbs (2950 kg).

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A Power 2 by James Manson (aft cabin not fitted).

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POWER 225

Power 225 Particulars

LOA 22' 6.71m

Beam 9'4" 2.85m


Draft 1'4" 0.4m



Engine Up to 150 hp

Hull Shape Multi-chine 3 planks per side

Construction Methods Aluminium (ply could also be used)


Guidance Use Offshore

Drawing/Design Package 4 x A1 drawings


The Power 225 is based upon the ‘U’ shaped hull section of our Power series of motor boats. At present we have the hull panel, frame shapes and construction details for an aluminium version of this boat—accommodation and fit-out details are not available bar a simple arrangement sketch but we can either draw up details or give details from our Power 3 which will act as a good guide. She is designed for inboard/outboard power and could easily be built from plywood.

She has been designed to have a large cockpit with open wheelhouse and forward accommodation of 2 berths/settees, wc and galley.

LOA 22’ (6.71m); Beam 9’4” (2.85m); Displ. To WL 6615 lbs (3000 kg); Engines up to 150 hp.

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26’ GENERAL PURPOSE WORK BOAT

26' GP Workboat Particulars

LOA 26' 7.93m

Beam 8'4" 2.54m


Draft 14" 0.35m



Engine Up to 200hp outboard




9 x 4mm sheets 6 x 6mm sheets 6 x 9mm sheets 35 x 12mm sheets

Guidance Use Estuary/offshore

Drawing/Design Package 5 x A1 drawings+ 7 x A4 instruction/spec sheets


This is a general purpose 26' workboat with a beam of 8'4". Construction consists of pre-shaped ply bulkheads and girders which are slotted together. Chine girders are then fitted and the pre-shaped hull skin then applied. Details are shown for the construction of the hull and basic deck and superstructure and spaces are given for the internal fit out which may be altered to suit. She will accommodate a wc, 2 berth saloon, galley and double berth and has a large cockpit/workspace aft. She is designed to take a couple of large outboard engines. She has a transom bow above the waterline to increase deck space and for bow mooring. Plans for the hull, deck and superstructure only are available.

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LAMBAY ISLAND 22

Lambay Island 22 Particulars

LOA 22' 6.71m

Beam 8'3" 2.52m


Draft 2'7" 0.78m

Maximum Headroom (wheelhouse) 6'5" 1.95m


Engine Up to 50 hp inboard


Construction Methods Steel (plywood could also be used)

Major plywood requirements for hull 18 sheets




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This is a 22' motor boat with a large cockpit area and comfortable accommodation with 2 large berths, w.c. compartment and galley with dining space. The drawings are originally for steel construc-tion but she could be made out of plywood over a simple framework of plywood bulkheads and gird-ers. She may take inboard engines up to 50 hp. LOD 22' (6.71m); Beam 8'3" (2.52m); Draft 2'7" (0.78m); Approx. wht. 5182 lbs. (2350 kg). Steel hull construction details only are available at present.

See the Howth Head for a plywood version.

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HOWTH HEAD 22

Lambay Island 22 Particulars

LOA 22' 6.71m

Beam 8'3" 2.52m


Draft 2'9" 0.84m



Engine Up to 50 hp inboard

V bottom single chine


Major plywood requirements for hull 36 sheets




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The Howth Head is a plywood version of the steel Lambay Island design. Like the Lambay, she is a 22' motor boat with a large cockpit area and comfortable accommodation with 2 large berths, w.c. compartment and galley with dining space in the cockpit.

Construction is ply hull panels over a framework of plywood bulkheads/frames slotted onto a ply fore and aft girder. the chine seams are either conventional wood stringers or expoy and tape. She may take inboard engines up to 50 hp.

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Below is an example by Dennis Nissan - she has been increased slightly in size by multiplying all the panel and frame shapes by a scaling factor.

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MYLOR 27’ FISHING BOAT HULL

Mylor 27' Particulars

LOA 27' 8.24m

Beam 10'3" 3.1m


Draft 4'6" 1.37m

Displacement 8 tons 8.13 tonnes







A 27’ Fishing Boat for Mr. J. Clarke - this is a high volume strip planked fishing boat of modern proportions - the drawings are for the hull construction only - the mould shapes are computer faired and her tough hull uses 2 layers of strip plank which can then be sheathed in glass or veneered. Arrangements are shown for the engine and sterngear and internal framing consists of ply bulkheads. LOA 27' (8.24m); Beam 10'3" (3.1m); Displacement to DWL is 8 tons (8.13 tonnes). The skeg arrangement allows her to swing a 33" (0.84m) large prop.

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RUFUS 22 MOTOR CRUISER

22' Rufus Particulars

LOA 22' 6.71m

Beam 8'1" 2.46m


Draft 2' 0.61m

Maximum Headroom (cabin) (wheelhouse)

4'5" 6'

1.34m 1.84m


Engine 20 hp inboard

Hull Shape U shaped multi-chine - narrow flat bottom plus 4 planks per side



For hull :- 12 x 6mm sheets 6 x 9mm sheets 14 x 12mm sheets For deck/superstructure :- 9 x 4mm sheets 3 x 9mm sheets 6 x 12mm sheets




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The standard 17’ Rufus plans include the frame and panel shapes for both a 20’ and a fantailed stern version but we have been getting many requests for a slightly longer version and so we jumped at the chance to draw up a completely new set of plans when asked to lengthen the standard design.

The 22 footer has the same rugged displacement hull type as the smaller version with the exception that an additional chine has been added. The construction is basically ply panel over a ply eggbox type framework but details are also given for stitch and tape and the combi-stringer methods.

She may be powered by an outboard in a well but the drawings are based on a 20 hp inboard unit and the standard arrangement is for V berths forward with space for a wc and with a galley in the wheelhouse and an aft cockpit. However, like the 17’ version, she could be fitted out in a number of different ways with layouts to suit individual requirements.

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A Rufus 22 under construction by M. Davies.

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23’ CANAL CRUISER

23' Ply Canal Cruiser Particulars

LOA 22'11" 6.99m

Beam 6'10" 2.08m


Draft 8" 0.2m




Hull Shape Flat bottom plus 2 planks per side



8 x 4mm sheets 14 x 9mm sheets 24 x 12mm sheets 4 x 15mm sheets 3 x 24mm sheets

Guidance Use Canal



This is a simple ply cruiser designed specifically for canal use on the UK’s narrow canals. She uses simple ply on frame construction and she has parallel sections aft which mean that she can length-ened or shortened easily.

The drawings are for the construction of the hull and superstructure only and we have a drawing showing two possible options as to how she may be fitted out. There is space for 2 single berths a dinette that can convert into a double, separate wc and galley.

LOA 22’11” (6.99m); Hull beam 6’10” (2.08m); Draft around 8” (0.20m); Displ. To WL 4630lbs. (2100kg); Trailing weight around 3000lbs (1361kg) depending on fit-out.

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21’ IJSSEL STRIP PLANKED LAUNCH

21' Ijssel Particulars

LOA 21'6" 6.58m

Beam 6'6" 1.98m


Draft 2'4" 0.71m




Construction Methods Strip plank (moulds also given for clinker ply)

Major strip wood requirements for hull 2460' of 3/4" x 1 1/4" (750m of 18x30mm) WRC



Additions and alterations included with the plans Moulds for clinker ply version

This launch has been designed for diesel propulsion (10-15 hp) but she can also take steam or electric propulsion. The layout drawn for her is a simple open thro’ plan with no obstructing bulkheads but she could be fitted out in a variety of ways—a saloon and/or canopy could be fitted. Construction is Cedar strip plank and the plans give computer faired mould shapes—she could just as easily be built using the clinker/ply method too. The hull has a full bodied wineglass shape and the forward sections are well flaired. She has the capacity to take up to 10 or more crew.

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Pieter Brittijn’s Ijssel 21.

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A clinker example of the Ijssel 21 by John Robinson.

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26’ IJSSEL STRIP PLANKED LAUNCH


LOA 25'10" 7.87m

Beam 8' 2.43m


Draft 2' 7 1/2" 0.8m






Major strip wood requirements for hull 3280' of 7/8" x 1 1/4" (1000m of 22 x 33mm) WRC




It had to happen of course—having designed 21’ and 30 Ijssel launches, someone would want something in between and here it is. The hull is very much of the Ijssel high volume stable model with plenty of space for whatever internal arrangement you need at this length. In this set of drawings though, the client asked for a simple forward cabin. This gives convenient shelter to sit and lie in or to arrange a small wc. The cabin could easily be extended and could of course be used on the 21’ and 30 Ijssels.

Like her sisters, construction is for Cedar strip plank and whilst the drawings give details for diesel machinery installation, she could take steam or electric.

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30’ IJSSEL STRIP PLANKED (& STEEL) LAUNCH


LOA 30' 9.15m

Beam 8' and 10' 2.44m and 3.05m


Draft 3'1" 0.93m

Approx. Dry Weight 3.44 and 4.33 tons 3.5 and 4.4 tonnes



Construction Methods Steel (10' beam) and strip plank

Major plywood requirements for hull 2740' of 1" x 1 3/4" (835m of 25x45mm) WRC

Guidance Use Estuary/Coastal



An American client wanted to produce a replica of the African Queen and saw our Ijssel launch as offering a craft of similar style—so we increased her length to 30’ and beam to 8’ (later we were asked to increase the beam still further to 10’ and this alteration is included with the plans. The layout is for a simple open arrangement and this may be altered to suit and she could certainly take a saloon/cabin.

Like her smaller sister, she has well flared forward sections with a full midships section leading into a pretty wineglass transom. The computer faired mould sections and details are given for Cedar Strip construction but the plans include construction details for steel as well.

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26’ STEEL SALTEE ISLAND FISHING BOAT

This is a rugged steel workboat/fishing boat for coastal and offshore use. She has a large cockpit and enclosed wheelhouse with space below for a simple wc and/or galley.

The steel hull panel shapes are given so that the hull can be constructed either by tacking the plates together over wood moulds and then fitting the framework or by assembling the full framework first and fitting the panels over the top. Although the drawings are for steel construction, the Saltee Island would be easy to convert to ply over frame or even stitch and ply construction.

The hull has a double chine U/V bottomed shape giving an easy riding displacement hull that can be fitted out in a number of different ways.

26' Saltee Island Particulars

LOA 26'1" 7.96m

Beam 9'11" 3.03m


Draft 3' 1 1/2" 0.95m



Engine 35 to 80 hp inboard

V/U bottom double chine

Construction Methods Steel

Major plywood requirements for hull 5 x 3mm sheets, 23 x 4mm sheets, 7 x 5mm sheets, 1 x 8mm sheets

Guidance Use Coastal/Offshore



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MOTOR BOATS & LAUNCHES over 30’ in Length

List of Motor Boats & Launches over 30’

Design Page

Power 4 MB65

36’ Motor Yacht Hull MB66

Bullfinch 36’ Steel Narrow Boat MB67

Chaffinch 39’ Steel Narrow Boat MB68

Hawfinch 36’ Wood Narrow Boat MB69

32’ Steel Canal Tug MB70

32’x10’ Motor Barge Hull MB71

45’ Teign Motor Barge MB72

41’ Humber Steel Motor Barge MB73

35’ Steel MY Hull MB75

55’ Plywood MY Hull MB76

Hinton 15m Plywood Barge MB74

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POWER 4

Power 4 Particulars

LOA 32' 9.76m

Beam 10'9" 3.28m


Draft 2' 0.61m


Engine 75 - 150 hp

Hull Shape Flat bottom with 3 planks per side (mark 2)



Guidance Use 6 x 24mm sheets



After many requests, we have extended the simple concept of the Power 1 and 2 motor launches to a length of 32' with a beam of 10'9". At the moment, the drawings for the hull and deck construction are available allowing the client to choose or design his own superstructure and layout. (That shown above is just one possibility). Total displacement would be around 8500 lbs. allowing a fair amount of accommodation and tankage and the design will take single or double inboard/outboards. Construction is based upon pre-shaped hull bottom, frames, transom and fore/aft girders using 38 sheets of 1/2" and 6 sheets of 1" ply. Contact us if you want prices for the design of an internal layout and superstructure to your own requirements.

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36’ MOTOR YACHT (Hull)

36' MY Particulars

LOA 36' 10.98m

Beam 12' 3.66m


Draft 3'3" 0.99m


Displacement 7 tons 7.1 tonnes

Engine 2 x 190 hp inboard


Construction Methods Strip plank bottom/ply sides


Drawing/Design Package 1 x A0 drawing + 4 x A1 drawings + 3 x A4 instruc-tion/spec sheets


The drawings for this 36' motor yacht consist of lines, offsets, layout and profile details. Construction drawings and details can be furnished to the client to suit whatever method of build he requires. For the discerning motor yachtsman wanting a stylish roomy cruiser with a well thought out accommodation, this cruiser will achieve 15 knots with twin 190 hp engines. Fitted with more powerful drive units, she will do 20 or more knots on her semi-displacement hull. There is both inside and outside control positions, a large galley and spacious double cabin aft. In the standard layout there are berths for 5 and 2 toilet/shower units.

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BULLFINCH 36’ STEEL NARROW BOAT

36' Bullfinch Particulars

LOA 36' 10.95m

Beam 6'10" 2.06m


Draft 2' 0.61m



Engine 20-25 hp



Guidance Use Uk canals


Additions and alterations included with the plans Panel shapes for wide beam version.

The Bullfinch is a typical standard steel narrow boat with a cruiser stern for home construction. The drawings and details are for the hull, deck and superstructure steel work only. Engine bed and rudder details are also shown. A study plan showing a suggested layout is available but the fit out is left up to the builder (detail drawings can be provided if required). As drawn she is capable of being fitted out with 4/5 berths with a separate dinette/double berth, large galley area and shower/wc and a spacious saloon with a forward cockpit and an aft lobby. LOD 36' (10.95m); Beam 6'10" (2.06m); Displacement to WL 17200 lbs (7800 kg). Steel work construction plans are only available at present.

The plans also give the panel/frame shapes for a wider beam version.

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CHAFFINCH 39’ STEEL NARROW BOAT

39' Chaffinch Particulars

LOA 39' 11.9m

Beam 6'10" 2.06m


Draft 2' 0.61m






Guidance Use UK canal



The Chaffinch is a trad sterned narrow boat—drawings give the computer faired and generated hull panel shapes and full details for steel construction. The steel work drawings give details for the FW tank, rudder, sterngear/engine installation and weed hatch. The fit-out drawings show an open plan arrangement with berths for 4, a large wc compartment with shower and wash basin and a large galley—details are shown for the electrics and plumbing etc LOA 39’ (11.9m); Beam 6’10” (2.06m); Displacement to WL 19845 lbs (9000 kg). Note - we have the steel work drawings for a 58' narrowboat - contact us for details.

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HAWFINCH 36’ WOOD NARROW BOAT

36' Hawfinch Particulars

LOA 36' 10.95m

Beam 6'10" 2.06m


Draft 2' 0.61m







Guidance Use Uk canal



We have often been asked for a wood version of a steel narrowboat and here it is. Narrowboats were of course made from timber in the first part of the last century although then, they used heavy boards of Elm and Oak. This version uses several layers of plywood with Pine frames and framework combining the old with the new.

The drawings are for the wood hull only but we do give a basic interior layout arrangement and we can give simple ply superstructure construction details from one of our other designs.

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32’ STEEL CANAL TUG

32' Steel Canal Tug Particulars

LOA 32' 9.76m

Beam 6'10" 2.08m


Draft 3' 0.92m

Engine 35 hp inboard






We have drawn up the steel construction details (hull, deck/cabin, sterngear and rudder details only) for this 32’ canal boat based on a tug design with a fantail aft end and narrow boat lines amidships running into a tug type bow.

She may be fitted out in a variety of ways and we can help with this and with any changes required to the superstructure—the centre area is parallel sectioned so that she can be altered in length fairly easily.

The study plan consists of the main hull construction drawing and steel materials list.

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32’ x 10’ WOOD MOTOR BARGE (Hull)

32' x 10' MB Particulars

LOA 32' 9.76m

Beam 10' 3.05m


Draft 2' 0.61m


Displacement 12.5 tons 12.7 tonnes

Engine 50 - 75 hp inboard

Hull Shape Flat bottom rounded hull sides

Construction Methods Strip plank and steel




This is a shortened version of the 45’ Teign Motor Barge and has the same flat bottom panel for maximum capacity and ease of construction. We have the plans for the hull construction only in, strip plank and steel—we have a fit-out sketch but no fit-out details (although we can draw these up if required).

The sketch shows a layout with aft wheelhouse (engine room under), followed by a double berth cabin, shower and wc, galley and a forward dinette and saloon (which converts into another double berth).

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45’ TEIGN MOTOR BARGE

45' Teign Particulars

LOA 45' 13.72m

Beam 12' 3.67m


Draft 2'4" 0.71m

Maximum Headroom 6'7" 2m



Hull Shape Flat bottom and round hull sides

Construction Methods Strip plank and ply on frame

Major strip wood requirements for hull 5245' of 1" x 3" (1600m x 25x75mm) WRC or Larch etc



Additions and alterations included with the plans 30' x 12' sheet Multi-chine plywood construction

One of our clients wanted to match the advantages of strip planking with an easily built but attractive motor barge hull. In stead of using a slab sided hull seen on so many modern steel barges, we have been able to use the ability of strip planking to produce a hull with well curved topsides and modelled the barge on the old Teign gravel barges. Construction simply starts by laying down the flat bottom using the shape given on the plans. The bottom is a sandwich of ply and baulk timber. On this, the frames/floors are then erected (again the shapes are given on the drawings and the hull sides are planked with 2 overlapping layers of 1" strip planks. Quickly and using fairly basic facilities and tools, a very strong hull can be made by using this method. With a length of 45' and a beam of 12' the barge has a large amount of space to fit out the interior as you wish. The arrangement that we have drawn up is for charter use and has an aft wheelhouse with crew accommodation. Forward are 3 separate cabins for 6 to 8 people along with space for 2 wc's a hip bath/shower and a saloon. LOD 45' (13.72m); Beam 12' (3.67m); Draft 2'4" (.71m); Displ. to WL 19.64 tons (19.95 tonnes. Drawings for a plywood version of the hull are included.

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41’ HUMBER STEEL MOTOR BARGE

41' Humber Particulars

LOA 41' 12.5m

Beam 11'6" 3.5m


Draft 3'10" 1.18m




Hull Shape U multi-chine with 4 planks per side


Guidance Use Coastal/offshore

Drawing/Design Package 11 x A1 drawings +2 x A4 instruction/spec sheets


This is a steel multi-chine motor barge for use in the waters of the UK and Europe, crossing the Channel and exploring the rivers and canals of the European mainland. She has a section of parallel middle-body which means that she can be stretched.

She can be built with our without the spars/sails and can be fitted out to suit individual requirements. The drawings include construction details and plate shapes for the hull, construction details for the deck/superstructure, machinery installation and rudder gear.

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HINTON 15m PLYWOOD BARGE

This is a simple barge with flat bottom single chine shape and a ‘swim’ shaped stern (under the wa-terline similar to narrow boats). The bow would be vertically staved plywood in 2 or 3 overlapping layers. Construction details are available for the hull only and approximately 45 sheets of 18mm ply and 40 sheets of 24mm ply are used for the hull skin.

She may be fitted out to the builders requirements and we can give advice on deck construction etc. She is designed for use as a houseboat in inland waters.

Hinton 15m Particulars

LOA 49'9" 15.16m

Beam 9'9" 2.98m


Draft 2'4" 0.72m



Engine Approx. 50-80 hp for use on inland canals

Hull Shape

Flat bottom single chine


Major plywood requirements for hull only 45 x 18mm sheets 40 x 24mm sheets




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35’ STEEL MY (Hull)

35' Steel MY Particulars

LOA 35' 10.68m

Beam 11'6" 3.51m


Draft 2'2" 0.65m

Engine Twin 150 hp

Hull Shape V bottom double chine

Construction Methods Steel - could be ply over frame


Drawing/Design Package 8 x A1 drawings + 1 x A4 instruction sheet


Similar to the 55 footer below, we have details for the construction of a 35' steel motor yacht hull. The plans include the steel work drawings for the hull and engine beads and the computer generated hull panel shapes. She has a beam of 11'6" (3.5m) and has a double chine hull capable of speeds up to 25 knots.

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55’ PLYWOOD MY (Hull)

55' MY Particulars

LOA 55' 16.78m

Beam 15' 4.58m


Draft 3'5" 1.04m

Engine 2 x 350 hp inboard




Guidance Use



These drawings show the construction details for the plywood hull only of a 55' x 15' (16.78m x 4.58m) single chine (with spray rail) 'V' bottomed motor yacht capable of speeds up to 25 or more knots. Full details including computer generated and faired frame shapes are given allowing the builder to fit her out to suit (we are happy to give advise on this or to draw up further details).

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CLASSIC MOTOR BOATS

List of Classic Motor Boats

Design Page

Fanny the Fantail Launch MB79

Egret 16’ Classic Runabout MB81

Henley 16’ Simple Slipper Launch MB83

Henley 18’ Slipper Launch MB85

Kennet 20’/22’ Slipper Launch MB87

18’ Redshrike Runabout MB89

Snipe 25’ Runabout MB91

Pup 20’ Beaver Sterned Electric Launch MB92

Taranto 21’ Runabout MB93

24’ Strip Plank MY—mould/jig details MB94

50’ Pintail MY—hull construction details MB95

60’ Pintail MY—hull construction details MB95

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FANNY THE FANTAIL LAUNCH

15'4" Fanny the Fantail Particulars

LOA 15'4" and 17'9" 4.68m and 5.41m

Beam 6'3" 1.91m


Draft 1'8" 0.51m

Maximum Headroom in wheelhouse 5'9" 1.75m


Engine 5 IHP steam

Hull Shape

V bottom single chine


Major plywood requirements for hull 14 x 6mm sheets 3 x 9mm sheets 1 x 12mm sheet

Guidance Use Estuary/coastal for up to 6 adults


Additions and alterations included with the plans 17'9" version Sailing details Steel construction panel shapes

We were asked to design "Fanny" for the Boatman magazine and the construction of her hull was covered in issues 30 to 37. Since then several have been built both in plywood and in steel (by Peter Nicholls Steel Yachtbuilders). She was originally based upon our successful ROSE 'V' bottomed launch which has a large carrying capacity and enough volume for steam, electric or diesel engine propulsion. The drawings give details for Fanny to be built as an open launch or with a closed wheelhouse. The original requirement was for a tough, robust single chine 'V' bottomed launch that could be stored in the average domestic garage but still have the capacity to carry up to 6 or 8 crew. She had to have sweet lines, the ability to be adapted for different roles and ease in construction. Construction is based upon a simple framework of ply frames/bulkheads, ply fore/aft girders and stringers which is then clad in a ply hull skin. The frames define most of the fit-out so that, on turning her over, fit-out time is minimal.

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Above, the 17'9" version by Timo Knuuttila .

The above example is by Phil Hartman and is powered by a Minkota 80 thrust electric motor.

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EGRET 16’ CLASSIC RUNABOUT

16' Egret Particulars

LOA 16' 4.88m

Beam 6 1 1/2" 1.87m


Draft 1' 7 1/2" 0.5m


Engine Up to 20 hp inboard or 30 hp outbaord



Major plywood requirements for hull 14 x 6mm sheets 2 1/2 x 9mm sheets

Guidance Use 4 adults

Drawing/Design Package + 5 x A4 instruction/spec sheets

Additions and alterations included with the plans Outboard mounting

The Egret is a slightly simplified form of the Classic runabout - she has a plywood hull which can be overlaid with Mahogany veneer and teak decking to give a classic look. She has tumblehome aft and a 'V' bottomed hull with a single chine built over a computer faired framework. An outboard engine can be used but the plans show an inboard of around 20 hp. Seating is for 4 or 5 in two cockpits.

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This lovely example is by Mr. M. Burrell of Argyll, Scotland

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HENLEY 16’ SIMPLE SLIPPER LAUNCH

16' Henley Particulars

LOA 16' 4.88m

Beam 4'4" 1.32m


Draft 8" 0.2m



Hull Shape Flat bottom single chine and V bottom single chine (mark 2 version)

Construction Methods Ply over frame and stitch and tape

Major plywood requirements for hull 7x 6mm sheets



Additions and alterations included with the plans Hull panel shapes for mark 2 version with V bottom and single chine

What better way to explore our inland water heritage than by this elegant replica Slipper Launch. She has not simply been designed for day trips, but may be fitted with folding seats to form 2 bunks and a stowable canopy and stowage for cooker and stores. Construction is quick and simple with pre-shaped 1/4’’ ply hull panels and frames (7 sheets are used). Power may be 3-5 hp electric or petrol outboard. LOA 16’; Beam 4’4’’; Draft 8’’. An additional sheet gives the details for a 'V' bottomed version of the Henley.

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Below is a lovely example by Derek Ebbitt.

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HENLEY 18’ SLIPPER LAUNCH

Henley 18 Particulars

LOA 18' 5.49m

Beam 5'5" 1.66m


Draft 1'5" 0.44m


Engine 4-12 hp







The plans for the 16’ Henley Slipper Launch include the hull panel shapes for a single chine “V” bot-tomed version and we were simply asked to take this model and stretch it to 18’ - however, instead of just developing the hull panels, we have completed a complete separate set of plans for this new 18’ version which is powered in the same low cost way by an outboard in a well aft. She has the length though to take an inboard engine if required.

The interior has the same forward double bench seat and aft side seats but this can be altered to suit. Construction uses either ply over frame or stitch and tape construction and requires 9 sheets of 6mm ply and 9 sheets of 9mm ply.

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This example is by Geoff Shallard

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KENNET 20’/22 SLIPPER LAUNCH

20'/22' Kennet Particulars

LOA 20'/22' 6.1/6.7m

Beam 5'7" 1.7m


Draft 1'10" 0.56m








Additions and alterations included with the plans Panel/frame shapes for 21'9" x 5'7" (6.63 x 1.7m) version

The Kennet can be built either as a 20’ or a 22’slipper launch details and panel shapes are given on the plans for both versions. She has a ‘V’ bottom forward which flattens out as it runs aft giving an easily driven hull shape which has plenty of grip on the water. The standard arrangement has 2 cock-pits with comfortable seating for 4 or 5 people. Details of engine installation based upon a Yanmar 20 hp engine are shown on the drawings along with details on how to make your own rudder but we would be pleased to advise on the installation of other units. Construction can either be by the ply on frame method using oversized hull panels which are fixed to a conventional framework or by the stitch and epoxy method using pre-shaped ply hull panel shapes. The launch can be fitted out in basic form, or she may be used as the basis for an extensively fur-nished craft with teak decks etc.,

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This example is by Greg Clapp

This example left is by John Westlake.

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18’ REDSHRIKE RUNABOUT

18' Redshrike Particulars

LOA 18' 5.49m

Beam 6' 1.82m


Draft 1'9" 0.53m






4 x 4mm sheets 12 x 6mm sheets 2 x 9mm sheets 4 x 12mm sheets




Designed along the lines of a traditional 1930's runabout with rounded tumblehome to the topsides at the transom, the drawings detail her for construction using computer generated frames/bulkheads, transom and stem. Ribbands are then slotted into the frames and the planking (which may have a ply inner skin) is applied with the ribbands behind the seams. Decking consists of teak strips over ply so that in all respects she has a traditional appearance but uses modern building methods. She has room and strength to carry an engine of up to 125 hp.

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A beautiful example of the Redshrike by Peter Myers.

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SNIPE 25’ RUNABOUT

24'6" Snipe Particulars

LOA 24'6" 7.47m

Beam 6' 1.83m


Draft 1'10" 0.55m


Engine up to 120 hp inboard



Major plywood requirements for hull 10 x 6mm sheets 27 x 9mm sheets 1 x 12mm sheet




This was an interesting way to start a design. The client had a couple of Super Snipe engines kicking about and he wanted to sell them. What better way to do it and to get the greatest return for his money than to package them. The package that we chose was a 1930’s style runabout similar to the old Hackers and Chris Craft, but instead of using traditional methods of construction, we have made things easy and quick by using stitch and epoxy methods throughout with pre-shaped ply frames, girders and hull panels. The frames and girders are simply slotted together. The standard arrange-ment has a forward control cockpit with bench seat with a large aft seating cockpit. LOA 24’6’’; Beam 6’; Overall weight approx. 2200 lbs. The drawings consist of the hull construction details plus details from the Kennet design for decking, fit-out and engine installation.

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PUP 20’BEAVER STERNED ELECTRIC LAUNCH

20' Pup Particulars

LOA 20' 6.1m

Beam 5'1" 1.55m


Draft 1'4" 0.42m


Engine 1.4 Kw inboard electric







A 20' Beaver sterned electric launch - for simplified plywood construction using pre-shaped ply fore and aft girders and frames which slot together to give the basic shape accurately. LOA 20' (6.10m); Beam 5'1" (1.55m); Draft 1'4" (0.42m); Approx. wht. 1875 lbs ( 850 kg).

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TARANTO 21’ RUNABOUT

21' Taranto Particulars

LOA 21'3" 6.5m

Beam 6'7" 2m


Draft 10" 0.25m









We have often been asked about the design of a more rakish runabout - built in much the same way as the Redshrike (a ply inner skin over frames covered with Mahogany veneer) but with more modern lines - and at last we have been asked to design one. This example has a length of 21’3” (6.5m), and a beam of 6’7” (2m). Weight is approx. 3000lbs (1361kg) depending on the engine used - engines up to 175hp may be used.

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24’ STRIP PLANK MY (Moulds/jig)

24' Strip Planked MY Particulars

LOA 24' 7.32m

Beam 8'6" 2.59m


Draft 1'5" 0.44m

Approx. Dry Weight





Guidance Use

Drawing/Design Package 3 x A1 drawings (moulds and jig only)


This was a commission just for the computer generated and faired mould shapes and building jig details for a 24' x 8'6" motor yacht of traditional appearance. The concept is to have a forward cabin with 2 berths plus wc and galley and either a short wheelhouse with large aft cockpit or a longer wheelhouse with dinette. All the details are shown for the set up of the building jig ready for strip planking and we can either advise on the hull and deck/cabin construction or we can draw up details. Likewise, we can either give the machinery/rudder details from one of our other similar sized designs or we can draw up details for these.

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50’/60’ PINTAIL MY—(Hull Construction)

50'/60' Pintail Particulars

LOA 50' and 60' 15.25m and 18.3m

Beam 11' and 13'11" 3.36m and 4.24m

Draft 3'7" and 3'8" 1.09m and 1.1m


Construction Methods Steel (50') and ply (60')


Drawing/Design Package 5 x A1 drawings (50') 6 x A1 drawings (60')


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We have construction details for the hulls only of two 1930's style motor yachts. The first, shown above has a LOD of 60' (18.3m), beam of 13'11" (4.24m), draft of 3'8" (1.10m) and displacement of 30 tons (30.4 tonnes) and uses a simple form of ply construction. This is based upon a central ply girder and ply bulkheads. The side planking is ply which may be pre-shaped. The bottom is arched and made up from 3 layers of ply and the round bilge is strip planked.

The second example has an LOD of 50' (15.25m); beam of 11' (3.36m) and a draft of 3'7" (1.09m). The hull in this case is constructed of steel and has a similar layout to that of the 60 footer. For an overview, the G.A. drawing of each yacht plus the hull construction drawing costs £30 each.

Hull construction details cost £325 for the 50' yacht and £375 for the 60' yacht. We can draw up details for deck, superstructure, internal fit-out, machinery installation etc for each yacht as required.

For More Information please contact:

straydogboatworks.comPO Box 843

Mount Barker South Australia

5251

P: 61 8 8391 3705M: 61 (0)428 817 464

E: [email protected]

http://www.straydogboatworks.com/

mailto:[email protected]

Motor Boats & Launch Catalogue

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