Arch davis design – offering boat plans, kits, videos and dvds for the amateur boat builder including sail boats, row boats and power boats.. 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. Wooden boat plans and kits. many boat plans are offered online. at first everything is very confusing, then you start to get some idea of the different types of boats.