When I did mine, I found a profile on the net I liked. I captured it, resized it and printed it off.... I held it up to a window with a piece of graph paper over it and traced the outline..... each 1/4" square = 2" in real life... that was it.
I did some rough layout, using a few nails driven in the ply and a strip of wood and marked it out, and that became my outline.
jimbis wrote:Is there a source somewhere for the basic teardrop shapes? Ideally in a dfx or dwg formate.
I have the camp-inn, T@B, and a Benroy type done in Autocad and Microstation. I could e-mail them to you if you like. They are the plans I am building from.