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Modified CIY16, the basis for a 6-strake, 18-footer that treads the boundary of sail-and-oar and daysailer.

Modified CIY16, the basis for a 6-strake, 18-footer that treads the boundary of sail-and-oar and daysailer.

CIY 18 Design Brief

  • A Safe, seaworthy, weatherly, capable, beach cruiser with classic lines
  • Dimensions: 18' loa x 6' beam w/ healthy amount of freeboard
  • Draft kept to a minimum to allow for beach-cruising and launching in shallows
  • Capacity for 4-5 adults in daysailer-mode or 2 adults/2 kids + gear in cruiser mode
  • Displacement is light: towable by a typical sedan w/ 1000 lb towing cap.
  • Appropriate hull weight to make it easy to launch and retrieve, in particular at shallow ramp
  • Fullness of hull fore/aft will contribute to goals of boat and create the underwater volume needed for capacity
  • Plywood-epoxy construction featuring bulletproof glassed bottom and garboard w/ glued-lapstrake topsides (6 planks)
  • Below sheer, airtight tanks in bow and stern to provide flotation and storage
  • Side benches with airtight tanks underneath for additional storage and flotation
  • Inside of boat is easy to clean and keep clean; no hidden or inaccessible spaces
  • Transom-hung, kick-up rudder w/ NACA foil shape and impact-releasable hold down
  • Auxiliary power is oars or a small OB mounted on transom
  • The boat can be rowed by two people. One sits on a thwart that braces the CB trunk; other sits on a removable thwart
  • CB w/ NACA shape and uses bungee cord hold-down system 
  • Free-standing, lug-yawl rig of generous sail area set on hollow masts & spars
  • Boat is good to weather even in a chop and predictable/mild-mannered in a breeze
  • Easy enough to single-hand yet plenty to do for crew. Mizzen larger % of sail area than typical yawl, perhaps.
  • Classic lines complimented by 6-strake layout and more sheer than CIY16.