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

Sheet 1

Although the Janus plans have been selling well for nearly 30 years, it is only recently that I learnt that my bulkhead pattern sheet doesn't quite work. So here is a better layout, as drawn by a builder.

Sheet 2

Keel panel dimensions
Reading from aft the half widths are 137, 145, 170, 195, 205, 210, 205, 190, 165, 125, 70, 16. The spacing is 600 except 140 for the two aft widths.

Setup Note 6) Fix string to Bhd 4 on WL/CL intersect (bunk top). Pull tight and horizontal (check with spirit level) through Bhd 5 to Bhd 6. Temporarily clamp legs to Bhd 6 and offer up and adjust height so that string and WL are horizontal. Screw legs to Bhd 6 and brace as before (see 2B IV)

Setup Note 9) Fit side stringers, beginning at the keel and working down. Fit port and starboard stringers at the same time. Check that hull is not twisting as stringers are fitted. Glue and screw as 8) above. Note: if stringers are not long enough they should be scarphed together before fitting, see sketch at 2B1. Stem see VIII, IX, X

Sheet 3

General Procedure Deck Framing
Note: Interior should be finished and painted before fitting any deck framing
After fitting cabin shelves (see 3AXI) begin fitting deck framing at bow and work aft.
Check that stem, Bhd 1, 2 and deck beams 1, 2 form a fair camber curve before decking, plane as necessary.
Hatch side coamings are fitted after decking - see Sheet 5
Before fitting sloping cabin front the foredeck should be fitted to deckbeam 3 and forward beambox
Find deck beam 3 position by holding straight edge (or timber 'A' in sketch 3BIII) from Bhd 4 to Bhd 3 and then to gunwale
Bed central roof stringer on epoxy filler on foredeck - position depends on own boat - see Sheet 5
Deck stringers need slight bevel before decking. See Sheet 5

If you want to fit LAR keel to your Janus there is a pdf drawing HERE