Copyright 2017 - Woods Designs, Foss Quay, Millbrook, Torpoint, Cornwall, PL10 1EN, UK
  • home built Flica 37

  • plywood Romany 34

  • lightweight 14ft Zeta mainhull

  • Strike 15 trimaran at speed

  • 28ft Skoota in British Columbia

  • 10ft 2 sheet ply Duo dinghy

  • 24ft Strider sailing fast

  • 36ft Mirage open deck catamaran

DOWNLOAD PLANS GBP150.00

The Acorn is a 21ft lightweight plywood minimum fast cruiser that has been kicking around for nearly 20 years but only recently have plans been drawn. Some parts, eg boards, rudders, spars, can come from large beach cats (ie Hobie 18 or larger). The rig shown is the optional racing rig which is only suitable for experienced sailors in lightwind areas. Smaller rigs are available, see the study plan

For a pdf study plan please CLICK HERE

For a builders website please CLICK HERE

The photos below show an Australian boat a couple of weeks into the build

 

Basic Materials List

PLYWOOD
Hull Sides 11 sheets 4 mm ply (3/16in)
Hull bottom 2 sheets 6mm ply (1/4in)
Hull Bulkheads 2 sheets 6mm ply
Hull Decks 4 sheets 6mm ply
Daggerboxes, beams 1 sheet 6mm ply
TIMBER
100m (330ft) 2in x 1in
40m (150ft) 1in x 1in
20m (70ft) 11/2in x 1in
3in x 1in 5m (16ft)
EPOXY
25kgs epoxy
10kgs 200g glass
(Approx, excluding waste)
Notes:
All plywood to be best quality Marine grade Gaboon ply. Sheet sizes are 8' x 4', 2440 x 1220.
All timber to be at least "Joinery Quality". Unless noted otherwise all timber is softwood,
eg Douglas Fir, Sitka Spruce, Yellow Cedar or similar.
All timber is "PAR", or "Planed all Round".
Thus sizes given are nominal, ie 2" x 1" has a finished planed size of approx 45mm x 20mm.
(Note: It is usually cheaper to buy 2" x 1" and cut it in half to create 1" x 1".
Similarly cut 3in x 1in to make 11/2in x 1in).
Epoxy glue is recommended for all glue joints as it is the strongest and most watertight glue.
However, it disadvantages are cost, toxicity, waste and slow mixing times.
So read the manuals and pay good attention to the toxicity guidelines