Dear team, I have watched your fantastic video on making a new car bonnet in carbon fibre and this has given me the idea that I could do something similar with my very heavy centre boards on my Hobie 18 catamaran. The centre boards are about 1.2m in length and 35cm wide with a large handle and small flange at the top. The foil section is symmetrical (like an airfoil basically). The existing foils are very heavy and cumbersome to use. I am thinking that 2 moulds could be made that would basically create the new foil in 2 halves (length ways). Making the moulds and the 2 halves would be the straight forward part, it's the joining to create something stiff, strong and water tight is more tricky to visualise. Alternatively I could be barking up the wrong tree. I have attached a rough sketch of the foil and your advice would be welcome. Mike Cook

Hi Warren, thanks for your reply, I like your ideas for adding stiffness. I am trying to avoid having to scuplt a core if possible. When thinking about bonding the 2 halves, how would you build in a flange on which to apply the adhesive or would you build up some thickness around the edges and apply the adhesive there. Also could you describe how you would build up a mould please. Many thanks. Mike