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| Word |
Description |
| latitude |
The distance north or south of the equator measured and expressed in degrees. |
| lazarette |
A storage space in a boat's stern area. |
| lee |
The side sheltered from the wind. |
| leeward |
The direction away from the wind. Opposite of windward. |
| leeway |
The sideways movement of the boat caused by either wind or current. |
| line |
Rope and cordage used aboard a vessel. |
| line of position |
(LOP) In Loran or Decca navigation systems, a vector obtained by measurement of the time difference between the receipt of the master and slave signals which is then used to selected a corresponding LOP from a chart or table. Two or more intersecting LOPs are required to obtain a position fix. |
| listener |
In the NMEA 0183 standard, the recipient of messages across an interconnecting link. |
| log |
An instrument for measuring the speed or distance or both traveled by a vessel. |
| longitude |
The distance in degrees east or west of the meridian at Greenwich, England. |
| LOP |
Line of Position. In Loran or Decca navigation systems, a vector obtained by measurement of the time difference between the receipt of the master and slave signals which is then used to selected a corresponding LOP from a chart or table. Two or more intersecting LOPs are required to obtain a position fix. |
| Loran |
The general designation of one group of radionavigation systems by which a hyperbolic line of position is determined through measuring the difference in the times of reception of synchronized pulse signals from two fixed transmitters. |
| lubber's line |
A mark or permanent line on a compass indicating the direction forward parallel to the keel when properly installed. |
