Articles
Shadow Materials List
PLYWOOD
Hull skins keel - stringer 2 3 mm ply 11 sheets
Topsides 5 or 6 mm ply 6 sheets
Bulkheads 6 mm ply 3 sheets
Beamboxes 6 mm ply 1 sheet
12 mm ply 1/2 sheet
Decking 5 or 6 mm ply 8 sheets
Keels 9 mm ply 1 sheet
Rudders 18 mm ply 1/2 sheet
Platform/cockpit 9 mm ply 3 sheets
Beams 6 mm ply 3 sheets
Use best quality gaboon throughout. Note if 5mm ply is un-obtainable then 6 mm ply can be used.
18 mm ply can be made from 2 layers of 9mm ply and 12mm from 2 layers of 6 mm ply.
TIMBER:
Use douglas fir, sitka spruce, yellow cedar or similar unless noted
Note sizes are nominal and should be "planed all round"(PAR) ie final
size of 1 " x 1 " = 20 x 20mm
1 " x 1 " 70m
1 1 / 2 " x 3/4 " 120m
2 " x 1 " 160m
1 1/2 " x 1 1/2 " 22m
3 " x 1 1 / 2 " 2m
3" x 3/4 " 10m
2" x 2" 3m
3" x 1" 4m
1 1/2" x 3/4" 15m (hardwood for outer gunwale)
2 " x 1 1 / 2 " 4 off 4100mm plus 15m (beams)
1" x 1 1 /2" 8 off 4100mm pllus 10m (beams)
4" x 1" 2.5m
4" x 2" 2m (cedar, outer stem - can be laminated from smaller pieces)
6" x 1" 12m (keel planks - can be laminated )
4" x 1" 15m
3" x 1" 5m (hardwood - sacrificial keel)
3" x 2" 1.5m
GLASS:
15 metres 100 mm wide glass tape
15 m2 minimum of 300 g glass cloth + 5 kg epoxy. 20 m2 cloth is required if decks are sheathed.
NB glass must be compatible with epoxy
GLUE: minimum 10 kg epoxy and 20 kg resorcinol or polyurethene glue eg Balcotan
FILLERS: 500 g collodial silica & 1000 g Microballoons (min)
FASTENINGS: approx 5000 12 mm staples
500 g 3/4" "gripfast" nails
500 3/4" no. 6 bst steel CS screws
100 1 " no. 8 st steel CS screws