Keelson A structural member above and parallel to the keel. Kick-up Describes a rudder or centerboard that rotates back and up when an obstacle is encountered. Useful when a boat is to be beached. Lazarette A stowage compartment at the stern. Light lines from the topping lift to the boom, forming a cradle into which the mainsail may be lowered.
Lead refers to the direction in which a line goes.
Pivoting boards on either side of a boat which serve the same function as a centerboard. The board to leeward is dropped, the board to windward is kept up. Leech The aft edge of a triangular sail. A line running through the leech of the sail, used to tighten it. Loose-footed Describes a mainsail attached to the boom at the tack and clew, but not along the foot.