Glossary
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TermDefinition
- General Nautical Terminology, Safety Global Maritime Distress and Safety System (GMDSS)
An internationally agreed-upon set of safety procedures, communication protocols, and equipment designed to ensure that ships at sea can send and...
More Details - Signals & Communication Global Maritime Distress and Safety System Sea Areas
A map of the UK indicating the 3 sea areas around the coast and the coast of nearby European countries. White pointers indicate Medium Frequency...
More Details - General Nautical Terminology, Navigation Global Navigation Satellite System (GNSS)
The collective set of systems that enables positioning devices to calculate latitude & longitude. The system includes solutions including the GPS...
More Details - General Nautical Terminology Global Positioning System (GPS)
The US-based system of satellites, able to determine the latitude and longitude of a receiver on Earth by calculating the time difference for...
More Details - General Nautical Terminology, Safety GMDSS
An internationally agreed-upon set of safety procedures, communication protocols, and equipment designed to ensure that ships at sea can send and...
More Details - General Nautical Terminology, Navigation GMT
The mean solar time at the Prime Meridian in Greenwich, London, used as a global time standard.
Greenwich Mean Time (GMT) is a timekeeping...
More Details - General Nautical Terminology, Navigation Gnomonic Projection
A type of map projection where the surface of the Earth is projected onto a plane from the centre of the globe, causing great circles to appear...
More Details - General Nautical Terminology, Navigation GNSS
The collective set of systems that enables positioning devices to calculate latitude & longitude. The system includes solutions including the GPS...
More Details - General Nautical Terminology Go AboutTo change tack by altering course to bring the wind on the other side
- General Nautical Terminology Going AsternWhen going backwards through the water you may hear the skipper say: "I am going astern".
- Phonetic Alphabet, Signals & Communication Golf
Pronounced: GOLF
The term for the letter G in the NATO Phonetic Alphabet.
- General Nautical Terminology Gooseneck
A pivotal fitting on a sailing vessel that connects the boom to the mast, allowing for controlled movement in multiple directions.
The...
More Details - General Nautical Terminology Goose-winged
A sailing configuration where a fore-and-aft rigged vessel's sails are set on opposite sides of the boat, typically with the mainsail on one side...
More Details - General Nautical Terminology GPS
The US-based system of satellites, able to determine the latitude and longitude of a receiver on Earth by calculating the time difference for...
More Details - General Nautical Terminology Grab RailRails fitted above and below decks to grab at when the vessel heels
- General Nautical Terminology, Navigation Greenwich Mean Time (GMT)
The mean solar time at the Prime Meridian in Greenwich, London, used as a global time standard.
Greenwich Mean Time (GMT) is a timekeeping...
More Details - General Nautical Terminology, Weather (Meteorology) GRIB
A type of data format used in oceanography and meteorology to represent gridded data in a binary form for efficient storage and...
More Details - General Nautical Terminology, Weather (Meteorology) GRIdded Binary (GRIB)
A type of data format used in oceanography and meteorology to represent gridded data in a binary form for efficient storage and...
More Details - General Nautical Terminology GroundA general term for the anchors, cables and all the gear required when anchoring
- General Nautical Terminology GRP
A composite material made of a polymer matrix reinforced with fine glass fibres, commonly used in marine applications for its strength,...
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