This is the perfect dinghy for folks with larger boats. are you tired of moving heavy, traditional dinghies that weigh 200 pounds, or struggling with a limp, awkward. We have dinghy boat plans for dinghies up to 12′, most of which can be used with oars, sail, or small outboards. find dinghy sailboat plans at bateau!. Radosław werszko – wooden dinghy designer and builder – 4.5m dinghy.