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MOTOR
BOAT DESIGNS & PLANS
FOR MOTOR BOATS 16' TO 20' IN LENGTH
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Study Plans are available
for these designs - remember a study plan gives you more details and a
wood materials list usually on two A1 sheets, so that you can cost out a project
before ordering the full plans. When you order the full construction plans
you do not need to order the study plan as well, as all the study details
are on the full plans.
We have 7 designs, of
various different styles and types.
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Note -
In the particulars for each design, the dry weight is given for guidance
only and will vary depending on the grade/density of plywood and solid
wood used - different thicknesses of ply are often used by builders and
the dry weight figure is based on the thinnest ply specified.
Also the Guidance Use comments are given in good faith and are based on
feedback from previous builders etc and based on standard weight adults
- contact us if you want further clarification before ordering/building.
Speed and power requirements are also based on feedback and estimates
and are for guidance only - actual speeds attained will depend on
loading etc.
E & OE |
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| POWER
1.3 |
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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
1.3 Particulars |
| LOA |
17'2" |
5.23m |
| Beam |
7'6" |
2.28m |
| Hull
Mid Depth |
3' |
0.92m |
| Draft |
10" |
0.25m |
| Approx.
Dry Weight |
595
lbs |
270
kg |
| Engine |
Up
to 100 hp |
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| Speed |
25
knots with 20 hp |
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Hull
Shape |
U
- flat bottom with 2 additional planks per side |
| Construction
Methods |
Aluminum
(or stitch and tape ply) |
| Major
plywood requirements for hull |
14
x 9mm sheets
1 x 12mm sheets |
| Guidance
Use |
6
adults + |
| Drawing/Design
Package |
2
x A1 drawings + 8 x A4 instruction/spec sheets |
| Additions
and alterations included with the plans |
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POWER 1.3 FULL PLANS COST
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| POWER 2.2
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This example is by Matthew Clark and achieved 30 knots with a 100hp
outboard.
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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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Power 2.2 Particulars |
| 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 |
| Approx.
Dry Weight |
1700
lbs |
771
kg |
| Engine |
Outboards
up to 150 hp |
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| Speed |
30
knots with 100 hp |
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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 |
| Major
plywood requirements for hull |
12
x 9mm sheets
7 x 12mm sheets |
| Guidance
Use |
6-8+
adults offshore |
| Drawing/Design
Package |
7
x A1 drawings + 11 x A4 instruction/spec sheets |
| Additions
and alterations included with the plans |
Round
bilge strip plank moulds and jig option
V bottom single chine option |
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POWER
2.2 PLANS PRICE
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| UK/EU -
STUDY PLAN £10.00/FULL PLANS £85 (incl. VAT) |
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| USA/ELSEWHERE -
STUDY PLAN £8.50/FULL PLANS £72 ($14/$115)
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CEECAN 19
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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. LOD
(Length over deck) 5.79m, 19'; Beam 2.08m, 6'10"; Approx. draft 0.3m,1';
Approx. wht 1400 kg, 3087 lbs. |
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Ceecan 19 Particulars |
| LOA |
19' |
5.79m |
| Beam |
6'10" |
2.08m |
| Hull
Mid Depth |
3'7" |
1.1m |
| Draft |
12" |
0.3m |
| Maximum
Headroom |
6'1" |
1.85m |
| Approx.
Dry Weight |
3087
lbs |
1400
kg |
| Engine |
5-10
hp outboard |
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Hull
Shape |
V
bottom single chine |
| Construction
Methods |
Ply
over frame |
| Major
plywood requirements for hull |
7
x 5mm sheets
12 x 6mm sheets
20 x 9mm sheets
3 x 12mm sheets |
| Guidance
Use |
Canal/inland |
| Drawing/Design
Package |
3
x A1 drawings + 8 x A4 instruction/spec sheets |
| Additions
and alterations included with the plans |
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CEECAN
19
PLANS PRICE |
| UK/EU -
STUDY PLAN £7.50/FULL PLANS £75 (incl. VAT) |
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| USA/ELSEWHERE
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STUDY PLAN £6.50/FULL PLANS £64
($10/$102) |
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RATHLIN 20 MY
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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.
Additional
drawings are now available to construct the Rathlin as a motor sailer. The
drawings 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 drawings are the mould shapes for a larger version of the
Rathlin hull—the hull depth is increased 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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Above - a Rathlin under
construction by Bob Grutzmacher.
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Rathlin 20 MY Particulars |
| LOA |
20'4" |
6.2m |
| Beam |
7'4" |
2.24m |
| Hull
Mid Depth |
2'11" |
0.88m |
| 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 |
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Hull
Shape |
Round
bilge |
| Construction
Methods |
Strip
plank |
| 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) |
| Drawing/Design
Package |
11
x A1 drawings + 10 x A4 instruction/spec sheets |
| Additions
and alterations included with the plans |
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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RATHLIN
20 PLANS PRICE |
| UK/EU -
STUDY PLAN £10.00/FULL PLANS £210 (incl. VAT) |
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| USA/ELSEWHERE -
STUDY PLAN £8.50/FULL PLANS £179 ($14/$286)
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JARVIS 17
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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. LOD 16'11" (5.16m); Beam 6'7" (2.04m); Draft
1'3" (0.38m); Approx. wht 750 lbs (340 kg). |
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Jarvis
17 Particulars |
| LOA |
16'11" |
5.16m |
| Beam |
6'7" |
2.04m |
| Hull
Mid Depth |
2'10" |
0.87m |
| Draft |
1'3" |
0.38m |
| Maximum
Headroom |
5'3" |
1.6m |
| Approx.
Dry Weight |
750
lbs |
340
kg |
| Engine |
25'30
hp outboard |
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Hull
Shape |
Round
bilge |
| 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 |
| Drawing/Design
Package |
4
x A1 drawings + 5 x A4 instruction/spec sheets |
| Additions
and alterations included with the plans |
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JARVIS
17
PLANS PRICE |
| UK/EU -
STUDY PLAN £10.00/FULL PLANS £90 (incl. VAT) |
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| USA/ELSEWHERE -
STUDY PLAN £8.50/FULL PLANS £77
($14/$123) |
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RUFUS
17 PLANS PRICE |
| UK/EU -
STUDY PLAN £10.00/FULL PLANS £100 (incl. VAT) |
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| USA/ELSEWHERE -
STUDY PLAN £8.50/FULL PLANS £85 ($14/$136)
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RUBY 19
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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.
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Ruby
19 Particulars |
| LOA |
19' |
5.80m |
| Beam |
6'7" |
2.04m |
| Hull
Mid Depth |
3'1" |
0.93m |
| Draft |
2'5" |
0.73m |
| Approx.
Dry Weight in plywood |
2536
lbs |
1150
kg |
| Engine |
18-30
hp inboard |
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Hull
Shape |
Double
chine V bottom |
| Construction
Methods |
Steel
or ply over frame |
| Major
plywood requirements for hull |
6
x 6mm sheets
17 x 9mm sheets
2 x 12mm sheets |
| Guidance
Use |
Estuary/coastal |
| Drawing/Design
Package |
10
x A1 drawings + 5 x A4 instruction/spec sheets |
| Additions
and alterations included with the plans |
Steel
and Plywood hull construction shown. |
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RUBY 19
PLANS PRICE |
| UK/EU -
STUDY PLAN £10.00/FULL PLANS £160 (incl. VAT) |
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| USA/ELSEWHERE -
STUDY PLAN
£8.50/FULL PLANS £136
($14/$218)
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YOUR SHOPPING CART
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POSTAGE
& PACKING (SHIPPING)
Please note - the plan prices do not include P&P charges which will be
added to your order.
The maximum P&P charges for plans are :-
UK - £2 per plan (sent by 1st class Business Post.
Europe - £3 per plan (sent by Airmail).
USA & Elsewhere - £6 ($10) per plan (sent by Airmail).
See the Postage
Charge Table (via the Home Page) for further details. |
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