Offers plans and instructional boatbuilding books for sail, power, rowing and paddle craft. also surfboards, trailers, and self-steering mechanisms.. Boat plans by mike waller yacht design. quality plans for amateur boatbuilders, monohull and multihull, catamarans, sharpies, skiffs, power catamarans and. This boat is easy to build using our downloadable boat plans. our boat plans are available for instant download so you can start building right away..