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Glossary
HYPOTHERMIA – A physical condition where the body loses heat faster than it can produce it.
KEEL – The lowest portion of the boat; extends fore and aft along the boat’s bottom.
LINE – All rope in a boat or on the dock is referred to as “line.”
LIST – Leaning or tilt of a boat toward the side.
MAKING WAY – Making progress through the water.
MARINE CHART – Seagoing maps showing depths, buoys, navigation aids, etc.
MID SHIP (AMIDSHIP) – In the vicinity of the
MOORING – An anchor, chain, or similar device that holds a boat in one location.
NAVIGATION AID – Recognizable objects on land or sea such as buoys, towers or lights which are used to fix position to identify safe and unsafe waters.
NMMA – National Marine Manufacturer’s Association
PFD – Personal flotation device.
PITOT TUBE – See SPEEDOMETER PICKUP TUBE.
PLANING HULL – A hull designed to lift, thereby reducing friction and increasing efficiency.
PORPOISE – A condition in which the bow bounces up and down caused by trimming the engine too far out.
PORT – (1) The left side of a boat when facing the bow. (2) A destination or harbor.
PRIVILEGED BOAT – Term used for the boat with the
PROPELLER PITCH – Theoretical linear distance the propeller would move ahead during one complete revolution of it were turning with zero slippage.
RUB RAIL – The rubber extrusion that is fastened over the hull and deck joint.