Ebb,

The reason Cal Alberg designed a boat for Pearson is that Pearson paid him to design a boat or them. You can improvise without drawings when you are rebuilding a boat, but to build a boat commercially you need plans. Most most builders hire professional designers to design boats for them. This is quite a different thing than writing a book about someone else's invention, when the inventor has already written a book on the same subject. I suppose it would be a little like someone signing his name on one of Phil Rhodes' yacht design blueprints, and then trying to sell those plans to Pearson.