Power 1 : 16’x5’6’’ ply motor launch of ultra simple construction using pre-shaped ply hull panels, frames and transom. the chine joints are completed with. Arch davis design – offering boat plans, kits, videos and dvds for the amateur boat builder including sail boats, row boats and power boats.. Proven boat designs, and how-to information for boat building. boat plans are for beginners and have been built by thousands since 1953..