Copyright 2019 - 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

Notes for Quattro Full Size Patterns

It is important that the patterns are printed out at the correct size!! Print out on A1 paper

Sheet 1 Bulkhead Patterns

Total Vertical Distance BHD4 must be 565mm

OR if you cannot easily print out the full size patterns you can use the following offsets. Draw a fair line through all points. NOTE: You will soon discover that the "stitch and glue" method used is not particularly accurate as the plywood forms its own fair curves. Thus the bulkheads may not fit exactly.

Use the full size pattern drawing for other bulkhead details

BHD 1

Height gunwale to keel 492
Max Deck Camber 18
Gunwale half width 100
Then half widths at 100mm spacing working down from gunwale to keel
92, 83, 67, 41
Keel width 0

BHD 11/2 (note this is a half height bulkhead)

Height gunwale to keel 282
Max Deck Camber 0
Gunwale half width 122
Then half widths at 100mm spacing working down from gunwale to keel
93, 49
Keel width 0

BHD 2

Height gunwale to keel 532
Max Deck Camber 43
Gunwale half width 206
Then half widths at 100mm spacing working down from gunwale to keel
188, 162, 135, 93, 41
Keel width 20

BHD 3

Height gunwale to keel 516
Max Deck Camber 72
Gunwale half width 246
Then half widths at 100mm spacing working down from gunwale to keel
220, 188, 151, 106, 37
Keel width 23

BHD 4

Height gunwale to keel 498
Max Deck Camber 67
Gunwale half width 233
Then half widths at 100mm spacing working down from gunwale to keel
205, 174, 138, 91
Keel width 22

BHD 5

Height gunwale to keel 400
Max Deck Camber 38
Gunwale half width 170
Then half widths at 100mm spacing working down from gunwale to keel
142, 112, 72, 26
Keel width 22

Transom

Height gunwale to keel 295
Max Deck Camber 15
Gunwale half width 100
Then half widths at 100mm spacing working down from gunwale to keel
77, 46
Keel width 12

Sheet 2

Hull Centrelines on Cross Section Setup for Fitting Keels Horizontal Distance must be 195 mm when printed out

CLICK HERE for a dimensioned sketch of the Quattro 16 keels (pdf)

The mast length given is the minimum. For more headroom under the boom the mast can be lengthened (and gooseneck raised)