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TermDefinition
- Lazy JacksA network of cordage rigged to a point on the mast and to a series of points on either side of the boom that cradles and guides the sail onto(...) Read more
- Leading LightsLights positioned to assist entry into harbour or safe passage through a channel. Usually one light above another marks the correct course. Read more
- LeadlineAn instrument used in navigation to measure water depth; a line attached to some lead. Usually the line is marked with knots at regular intervals. Read more
- LeagueA unit of length, normally equal to three nautical miles. Read more
- LeeThe direction towards which the wind blow Read more
- Lee-oh!Command given by helm when tacking as the bow passes through the wind. Tells the crew to reset the sails on the new course. Read more
- LeechThe trailing edge of a triangular sail Read more
- Leeshore A coastline towards which the onshore wind blows; the shore to leeward of a boat Read more
- LeewardThe opposite direction to wind; downwind, away from the wind (Pronounced loo-erd) "To leeward" - the side away from when the wind is coming Read more
- LegA segment of a voyage between two waypoints Read more
- Length OverallLength Overall Read more
- LOALength Overall Read more
- LifelinePersonal safety device attached to harness on lifejacket and to vessel strongpoint. Designed to keep you on board Read more
- LiferaftEmergency flotation device to allow the crew to abandon ship in a gravely dangerous situation Read more
- LighthouseMajor light used to assist safe passage and help vessels avoid obstructions. Read more
- Phonetic Alphabet Lima Phonetic alphabet letter L. In Harbor: "The ship is under quarantine." This indicates that the vessel is not allowed to engage in normal(...) Read more
- ListA permanent lean to one side or the other Read more
- LockA chamber with gates at each end in which the water level can be raised or lowered Read more
- LockerAn enclosed stowage anywhere on board Read more
- LogA device to measure speed and distance through the water usually uncorrected for tidal stream Read more