There has never before been a sailboat like the Shoalsailer. The Shoalsailer introduces a totally new design concept for sailing in shoal water. The revolutionary U.S. patented monohull design enables the Shoalsailer to provide excellent all-around sailing (and most importantly windward performance) in water less than 3 feet deep! Additionally, the 12' 9" beam allows the Shoalsailer to be berthed in conventional slips found at marinas. And, with the 40hp diesel engine that is standard on all Shoalsailers, the Shoalsailer has a CRUISING SPEED OF 7 KNOTS. While there are many other boats, both monohulls and multihulls(catamarans), of similar size that claim shoal draft, they all require lowering deep centerboards or daggerboards in order toactually sail in any direction except downwind. The sailing draft of these designs is considerably deeper than the published board up draft numbers. The windward and reaching sailing performance of these boats with the appendages pulled up is dismal. There are other shoal draft designs that use fixed keels with horizontal winglets to help performance, but the draft of this type of vessel is usually well over four feet.