Small Catamaran Dayboats

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DAYBOAT DESIGNS & PLANS
SMALL CATAMARAN DAYBOATS

 

We have 3 designs for simple plywood catamarans below 16' length

 

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.
E & OE

 

 

Catamarans on this Page

16' Simple Surf 18' Hawk 5m Rodcat

 

16' SIMPLE SURF CAT

Surf Cat

16’x 7’. Very simple construction based upon 7 sheets of ply and easy ‘V’ section hulls with no centreboards. Costs have been kept right down by using wood beams and a simple ply aerofoil section mast. Definitely a sporty fun boat for the beach and for some competitive single handed sailing. A poor man’s Hobie cat. Easily demountable with everything secured by bolts minimal construction time.
Right is an example by Martin Chaplin.

16' Simple Surf Cat Particulars

LOA 16' 4.88m
OA Beam 7' 2.13m
Hull beam 13" 0.33m
Hull Mid Depth 1' 9 1/4" 0.54m
Draft (hull excl. rudder) 5" 0.13m
Sail Area 115.5 sq.ft 10.74 sq.m
Approx. Dry Weight 221 lbs 100 kg

Hull Shape

Simple V
Construction Methods Ply over frame and stitch and tape
Major plywood requirements for hull 6 1/2 sheets of 6mm and 1 sheet of 9mm plywood
Guidance Use 2-3 adults
Drawing/Design Package 2 x A1 drawings + 4 x A4 instruction sheets
Additions and alterations included with the plans  

 

16' SIMPLE SURF CAT PLANS COST 

UK/EU - FULL PLAN £60 (incl. VAT)                       

USA/ELSEWHERE - FULL PLAN £47 ($75)              

 
 
18' HAWK  


18’x 11’ (hull beam 3’). Ultra simple stitch and tape construction using 10 sheets of 1/4’’ and 4 sheets of 3/8’’ ply. Built-in buoyancy, good storage and sit-in hulls which may, under a canvas canopy be used for sleeping as well as the bridge deck area making her an ideal coastal/beach camping boat. Beams are simply bolted to the hulls and each hull may be made in two parts and bolted together.
A Hawk being built in the Philippines by David Blowers

Right and below are photos of an example of the Hawk by Yaraslav Pidkurganniy in the Ukraine.

18' Hawk Particulars

LOA 18' 5.49m
OA Beam 11' 3.36m
Hull beam 3'2" 0.97m
Hull Mid Depth 2'4" 0.71m
Draft 8"/2'8" 0.2/0.81m
Sail Area 135 sq.ft 12.56 sq.m
Approx. Dry Weight 386 lbs 175 kg

Hull Shape

Flat bottom single chine
Construction Methods Stitch and tape
Major plywood requirements for hull 10 sheets of 6mm and 4 sheets of 9mm plywood
Guidance Use 4 adults +
Drawing/Design Package 3 x A1 drawings + 7 x A4 instruction sheets
Additions and alterations included with the plans Alternative low aspect ratio fixed keel and vertical transom

 

18' HAWK CAT PLANS COST 

UK/EU - FULL PLAN £70 (incl. VAT)                       

USA/ELSEWHERE - FULL PLAN £55 ($88)              


 
5m RODCAT BEACH CATAMARAN

The Rodcat 5 is a simple beach catamaran with asymmetric hulls. To make construction quick and easy, each hull is built up from a flat inboard side which is laid flat on a workbench. The transom and ply bulkheads are then fitted to this side and the pre-shaped bilge and side panels added and stitched together. All seams are then epoxy filleted before the deck is put on over size and trimmed back. The 'I' beams are made up from wood and are simply lashed into beam slots mounted on top of the deck so that assembly is quick. The daggerboards are mounted in outboard slots formed on the vertical inboard hull sides and the drawings give details for wood mast and boom. LOD 18' (5.5m); Beam OA 9'2" (2.8m); Sail Area 178 sq.ft. (16.6m); Approx. wht. 350 lbs (160 kg).

5m Rodcat Beach Catamaran Particulars

LOA 18' 5.5m
OA Beam 9'2" 2.8m
Hull beam 1'8" 0.5m
Hull Mid Depth 2' 0.61m
Draft 7"/2'9" 0.17/0.84
Sail Area 178 sq.ft 16.6 sq.m
Approx. Dry Weight 350 lbs 160 kg

Hull Shape

Asymmetric V bottom
Construction Methods Stitch and tape
Major plywood requirements for hull 7 sheets of 6mm plus 6 sheets of 9mm plywood
Guidance Use 2-4 adults
Drawing/Design Package 4 x A1 drawings + 5 x A4 instruction sheets
Additions and alterations included with the plans  

 

5m RODCAT BEACH CAT PLANS COST 

UK/EU - FULL PLAN £80 (incl. VAT)                       

USA/ELSEWHERE - FULL PLAN £64 ($102)            

 

REVIEW THE CONTENTS OF YOUR SHOPPING CART

 


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 - £3 per plan (sent by 1st class Business Post.
Europe - £5 per plan (sent by Airmail).
USA & Elsewhere - £9 ($15) per plan (sent by Airmail).

See the Postage Charge Table (via the Home Page) for further details.

FOR DETAILS OF THE STITCH & TAPE
AND CEDAR STRIP PLANK
CONSTRUCTION METHODS SEE THE HOME PAGE