Inspiration for this design came while I was sailing and living aboard a very different cruising boat — one with a wineglass hull, deep keel and narrow beam. She sailed well to windward and took me thousands of miles around the Pacific, but was a handful off the wind, and left much to be desired as a cruising home. Simplicity is in many ways the opposite: a beamy centerboarder, she is designed from the outset to provide a comfortable home on the water. She will perform well (especially off the wind), provide access to even the most shallow cruising grounds, and is designed specifically to be simple for amateurs to build.
Simplicity’s defining features are her flat bottom, shoal draft hull and raised deck. The shoal hull form (draft is just over 2’ with board up) enables access to many shallow anchorages and cruising grounds that are otherwise inaccessible, and Simplicity will be beachable with no need for legs or similar arrangements to keep her upright. The centerboard will provide respectable performance to windward, while off the wind, with the board up, Simplicity should prove significantly faster than many deep keel cruising boats of similar size.
The raised deck simplifies and strengthens construction while providing significant reserve buoyancy. Despite her shallow hull, Simplicity will be safe and capable offshore. Her substantial ballast (5500 lbs, with a 35% ballast/displacement ratio), in combination with the raised deck, provide excellent stability for a shoal draft boat: Simplicity is self-righting to over 125 degrees. Her displacement of 15,350 lbs is in cruising trim, and includes a long equipment list (with provision for three anchors and rode, two dinghies, tools and spares, and several months of provisions for a cruising couple).
The theme of Simplicity continues with the rig -- a gaff or full battened Simplicity rig. Both feature round hollow spars that are simple to build, with wire or Dyneema rigging. Metal hardware aloft is kept to a minimum, and deck hardware can be fabricated from silicon bronze, or steel (and then galvanized) if on a budget. Under sail these rigs offers distinct advantages, with a low center of effort, reasonably sized headsails, and enormous drive off the wind. The rig is not highly stressed, and there is welcome redundancy in the rigging when sailing offshore. The mast can be stepped in a tabernacle, creating access ability to canals and inland waterways, with a height above the water of less than 8’ with the mast down.