Glossary
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TermDefinition
- General Nautical Terminology Swinging Room
The area around a vessel at anchor where it can safely swing with changes in wind or tide without risk of collision or grounding.
Swinging...
More Details - 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 Tack
Verb: To change the direction of a sailing vessel by turning its bow through the wind, allowing the wind to shift from one side of the sail to...
More Details - General Nautical Terminology Tack
The lower forward corner of a sail, where it is secured to the boat or rigging.
The tack of a sail is the point where the luff (leading edge)...
More Details - General Nautical Terminology Tacking
To manoeuvre or turning a sailing vessel's bow through the wind to change direction, allowing it to sail in a zigzag pattern upwind.
Tacking...
More Details - 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
- Courses, RYA Tender OperatorThe RYA Tender Operator course is tailored for individuals using tenders in marina or superyacht environments. The course covers low-speed... More Details
- 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.
- Did you know?, Nautical Saying Three sheets to the wind
The phrase “three sheets to the wind” comes straight from nautical life—and originally had nothing to do with drinking at all!
🚢 Nautical...
More Details - General Nautical Terminology, Navigation Tidal Stream
The horizontal movement of water caused by the rise and fall of the tide.
A tidal stream refers to the flow of water generated by the...
More Details - General Nautical Terminology, Navigation Tidal Stream Atlas
A collection of charts that depict the set (direction) and rate (speed) of tidal currents at various stages of the tidal cycle.
A Tidal Stream...
More Details - 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...
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