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TermDefinition
- 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
- LineAlternative name for a small rope or for a rope used for mooring a vessel Read more
- ListA permanent lean to one side or the other Read more
- Local Notice to Mariners A Local Notice to Mariners (LNM) is a publication issued by maritime authorities to provide important information to mariners about(...) Read more
- LNM A Local Notice to Mariners (LNM) is a publication issued by maritime authorities to provide important information to mariners about(...) 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
- Log ReadingThe reading of distance travelled through the water usually taken every hour from the log and recorded in the deck log Read more
- LogbookA book to keep a record of events, distance run and courses, etc. Read more
- LongitudeThe vertical lines of longitude are called meridians and run from and to the poles, the zero degree line runs through Greenwich, London. The(...) Read more
- Look-outVisual watch; Member of the crew responsible for keeping it Read more
- Lose WayA vessel loses way when she slows down and stops in the water Read more
- LATThe lowest level the tide will reach based on the luna cycle; used as Chart Datum in many publications Read more
- Lowest Astronomical TideThe lowest level the tide will reach based on the luna cycle; used as Chart Datum in many publications Read more
- Lubber LineThe marker in the compass which is aligned with the fore-and-aft line of the boat against which the course can be read off on the compass card Read more
- LuffThe luff is the forward, vertical edge of the sail, which runs up the mast or forestay. Read more
- Luff UpTo steer a sailing vessel more towards the direction of the wind Read more
- LullA temporary drop in wind speed Read more
- Magnetic NorthThe area of the globe where compasses point, it's a variable location moving each year. See also Variation & True North Read more