Hey Kim, The plan shows the shape needed, but does not explain how to do it. I made the propeller first, that way if I couldn't make it correctly, then I wouldn't bother making the rest of it. After cutting it out, it only took about twenty minutes to shape it. I drilled a hole in the center of the blade and used the tip of a pencil to check for balance and sanded as needed.
If you decide to make one, you will want to make several props in case you break one or lose it in a tree or on a roof!