Purchase online, then download start building today! the dillon laker 14: boat plans: a recreational tunnel boat for motors 60 hp to 80 hp. We have power boat building designs of all types such as power cats, cruisers, and more. view jon boat deck plans & boat cabin plans for more details.. How fast does it go? for estimating the speed for small outboard planing boats see planing speed boat chart. this chart should be used for.