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CAPACITY PLATE – A plate that provides maximum weight capacity and engine horsepower rating information. It is located in full
view of the helm.
CAPSIZE – To turn over.
CAST-OFF – To unfasten mooring lines in preparation for departure.
CENTER LINE – A lengthwise imaginary line which runs fore and aft with the boat’s keel.
CHINE – The point on a boat where the side intersects (meets) the bottom.
CLEAT – A deck fitting with ears to which lines are fastened.
CONSOLE – Also called helm. The steering wheel area of the boat.
CRANKING BATTERY – The main battery used for engine starting and electrical circuits.
CURRENT – Water moving in a horizontal direction.
DECK – The open surface on the boat where the passengers walk.
DEEP CYCLE BATTERIES – Special long-running batteries which can be repeatedly discharged and recharged without
significant loss of power.
DOLLY WHEEL – A rolling jack assembly at the front of the trailer used for positioning the coupler during trailer hookup.
DRAFT – The depth of the boat below the water line, measured vertically to the lowest part of the hull.
ELECTROLYSIS – The break-up of metals due to the effects of galvanic corrosion.
FATHOM – Unit of depth or measure; 1 fathom equals 6 feet.
FENDERS – Objects placed alongside the boat for cushioning. Sometimes called bumpers.
FORE – Toward the front or bow of the boat. Opposite of aft.
FREEBOARD – The distance from the water to the gunwale.
FUEL SENDING UNIT – The electrical device that is mounted on the outside of a built-in fuel tank and controls the dashboard
fuel gauge.
GLOSSARY OF TERMS