A retractable or sliding keel used on sailboats, formed of a broad board or slab of wood or metal which may be raised into a water-tight case amidships, when in shallow water, or may be lowered to increase the area of lateral resistance and prevent drifting to leeward when the vessel is beating to windward. It is used in vessels of all sizes along the coast of the United States
or Centreplate: A retractable fin projecting through a boat's bottom to provide resistance to leeway when sailing into or across the wind.
A device similar to a keel, except that it is usually either removable or can pivot. Also see daggerboard. The centerboard is used like a keel to reduce the unwanted sideways motion of a boat.
A board that is lowered through a slot in the keep to reduce leeway.
A type of retractable keel used on sailing vessels to prevent drifting downwind. Also known as a drop keel.
retractable keel to stop a boat's leeward drift a board lowered through a slop in the centerline of the hull to reduce sideway skidding or leeway. Unlike a draggerboard, which lifts vertically, a centerboard pivots around around a pin, usually located in the forward top corner, and swings up and aft.
A pivoting board that prevents the boat from sliding sideways.
A vertical plate sticking out the bottom of the boat that pivots up and down about the centerboard pin.
Pivoted board that can be lowered through a slot in the keel to reduce leeway.
a fin shaped, often removable, board that extends from the bottom of the boat as a keel
a fin shaped board that can be lowered through a slot in the bottom of the boat to be used as an adjustable keel.
A keel-like pivoting device, typically in a trunk, that can be lowered or raised to act as a keel.
A pivoting plate of wood, fibreglass, or metal, projecting below the bottom of a sailboat to help prevent the boat from sliding sideways.
An adjustable keel that drops through a slot in the bottom of a boat to provide ballast and sailing stability.
A retractable device that, when down, keeps the board from going sideways and also reduces the boat's draft in shallow water. Entry-level boards have centerboards. Those without a centerboard (in the down position) a novice board will not sail up wind. The centerboard will also steady the board and make balance easier.
Used to keep the boat from moving sideways under certain wind conditions. It also increases the boat's stability and aids in steering it.
