[quote=Wolfman]You could probably do it, I would also lay some fiberglass mesh in to reinforce and stiffen the rudder a bit. Marine grade plywood definitely needs a seal coat whereever you cut it and at the edges or it will absorb water and swell.
I believe that most people use a lighter wood than that though, I've heard of quite a few cedar or balsa daggers and rudders out there with 3-5 layers of glass on them, but I am pretty sure you would have to put stringers (fiberglass plates) in the main body to provide stiffness and strength.
I would think that you should be able to get a used H16 rudder really cheap if you put a want add here.[/quote]
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