The international optimist sailboat 2d Assembly drawing is given in this AutoCAD file. Rudder, daggerboard, cleat, downhaul, and tiller are mentioned. A rudder is a part of the steering device of a boat or ship that is fastened outside the hull, usually at the stern. Tiller is provided under 30 feet size boat. This is basically a stick made of wood or, sometimes, aluminum, attached to the top of the rudder. A cleat is a tie-down point or securing device mounted to the deck of a sailboat. Cleats secure lines for rigging and docking.
