That's a good method.

There's also carbon paper. (Do they still make that stuff ?!)

Or, "the hard way". Trace the parts onto paper, tack the paper (lightly) to the wood, and cut them out. Then remove the paper.

If you're going to do this same model again in the future, (not just a one-time deal) it might be worth making some templates "the hard way" onto clear plastic, light ply, formica, or whatever you have laying around that will last for a while. (I always save airfoil templates this way, so I can use them again later.)