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Eng ID | Term | Definition |
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2901 | local meridian | See MERIDIAN. |
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2902 | local sidereal time | See TIME. |
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2903 | local time | See TIME. |
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2904 | local transit | See TRANSIT. |
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2905 | local warning | A NAVIGATIONAL WARNING which covers inshore waters, often within the limits of jurisdiction of a harbour or port authority. |
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2906 | loch | The Scottish term for (1) a LAKE, and (2) a FIORD. |
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2907 | lock | A WET DOCK in a WATERWAY, permitting a ship to pass from one level to another. See TIDE LOCK. |
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2908 | lock gate(s) | Pair of massive hinged doors at each end of a LOCK. |
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2909 | locking | In ELECTRONIC NAVIGATION, a term describing the condition of two TRANSMITTERS when their SIGNALS maintain a stable phase relationship. One... more |
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2910 | locus | (pl. loci). All possible positions of a point or curve satisfying stated conditions. |
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2911 | log | An instrument for measuring the SPEED or distance or both travelled by a vessel. |
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2912 | log | (v.t.). Said of a ship moving at a specified SPEED according to the indications given by the LOG. |
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2913 | log: chip | A LOG consisting essentially of a weighted wooden quadrant attached to a bridle in such a manner that it will float in a vertical position, ... more |
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2914 | log: Dutchman's | A buoyant object thrown overboard to determine the SPEED of a vessel by timing its passage between two marks, of known distance apart, on th... more |
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2915 | log: electric | A graphic recording of the various electrical properties of a SEDIMENT or ROCK through which a hole has been drilled. |
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2916 | log: electric submerged | An electrically-operated LOG installed inside the hull of the vessel with a tube extending through the hull into the water. |
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2917 | log: electromagnetic | A LOG consisting of a pulsating MAGNET mounted on a probe pointing downwards with two contacts on the sides of the probe. The movement of th... more |
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2918 | log: ground | A device for determining the COURSE and SPEED made good over the GROUND in SHALLOW WATER, consisting of a LEAD attached to a line. The LEAD ... more |
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2919 | log: patent | Former name for a towed LOG. Any mechanical LOG, particularly a TAFFRAIL LOG. |
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2920 | log: taffrail | A LOG consisting essentially of a rotator towed through the water by a braided LOG LINE attached to a distance registering device usuall... more |