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Floating navigational marker.
Distinguished from other boat types by its two hulls. A catamaran has one mast, and one or two sails, depending on the boat size. A fast boat.
One mast and one sail, with the mast usually stepped forward. Good for sailing shorthanded or with children.
Center of Effort (coe)
The point at which all of the forces acting on the sails are concentrated.
Center of Lateral Resistance (CLR)
The underwater center of pressure about which a boat pivots when changing course.
Retractable keel to stop a boat's leeward drift.