David Thatcher wrote:
Are the bilge boards going to be solid timber? That little design I have been looking at has the daggerboards and rudder blades fabricated out of plywood bent around internal formers and a center solid longitudinal. This seems a much more sensible way of making these rather than starting off with a solid block of timber and then planing a large proportion of the timber away as waste.
Way back, before I left NZ, I made a drawing of the bilgeboard like this. The outboard surface is 12mm flat plywood, and several longitudinals are glued onto it. Then two layers of 6mm plywood are bent over the longitudinals, and a solid radiused nose is glued on and shaped up. Yes, this is a better way of making them, reducing the weight to be hauled up and making the boards less likely to warp.
I think it's a different situation for the rudders. Annie has a pile of timber suitable for laminating them in three layers, and there's less shaping to do than for the bilgeboards.