Glossary
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TermDefinition
- General Nautical Terminology, Weather (Meteorology) Synoptic ChartA map that summarises atmospheric conditions (temperature, precipitation, wind speed and direction, atmospheric pressure and cloud coverage) over... More Details
- General Nautical Terminology TackThe tack is the lower forward corner of the sail. The tack on the mainsail is attached where the boom meets the mast. The tack on the headsail is... More Details
- General Nautical Terminology TackingThe process by which a sailing vessel can go to windward, making a series of zig-zag ‘tacks’ at an angle to the wind
- General Nautical Terminology Take InLower a sail
- General Nautical Terminology Take the HelmTo steer the vessel
- Phonetic Alphabet, Signals & Communication Tango
Pronounced: TANG-go
The term for the letter T in the NATO Phonetic Alphabet.
- Flag / Pennant, Signals & Communication Code Flag Tango (T)
The International Maritime Signal Flag Tango.
Meaning
Keep clear of me.
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Fishing boats: Keep clear of me; I am engaged in pair... - General Nautical Terminology, Navigation TCPA
A measure used primarily in maritime and aviation contexts to estimate the time until two moving objects (e.g., ships or aircraft) reach their...
More Details - General Nautical Terminology, Navigation TDOP
A measure used in satellite navigation systems, such as GPS, to quantify the effect of errors in the timing of satellite signals on the accuracy...
More Details - General Nautical Terminology Tell TalesLengths of wool or ribbon attached to a sail or shroud to indicate the airflow or apparent wind direction
- General Nautical Terminology TenderSee Dinghy
- Organisation The Royal Institution of Naval Architects (RINA)
An internationally renowned professional institution representing naval architects and marine engineers worldwide. It was founded in 1860 and is...
More Details - Flag / Pennant, Signals & Communication Third Substitute (ICS Flag)
Substitute or repeater flags allow messages with duplicate characters to be signalled without requiring multiple sets of flags.
- General Nautical Terminology, Navigation Tidal Stream
Tidal stream refers to the horizontal movement of water caused by the rise and fall of tides in coastal areas and waterways. This movement is...
More Details - General Nautical Terminology, Navigation Tidal Stream AtlasAn official publication showing the direction and rate of the tidal streams for a particular area
- General Nautical Terminology, Navigation Tide
The rise and fall of sea levels caused by the gravitational forces of the moon and the sun acting on the Earth's oceans. Tides are characterised...
More Details - General Nautical Terminology, Navigation Tide Tables
Charts or listings that provide the predicted times and heights of high and low tides for specific coastal locations over a given period.
Tide...
More Details - General Nautical Terminology TillerA lever attached to the rudder head by which the helmsman moves the rudder
- General Nautical Terminology, Navigation Time Dilution of Precision (TDOP)
A measure used in satellite navigation systems, such as GPS, to quantify the effect of errors in the timing of satellite signals on the accuracy...
More Details - General Nautical Terminology, Navigation Time to Closest Point of Approach (TCPA)
A measure used primarily in maritime and aviation contexts to estimate the time until two moving objects (e.g., ships or aircraft) reach their...
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