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TermDefinition
- Global Positioning System The US-based system of satellites, able to determine the latitude and longitude of a receiver on Earth by calculating the time difference for(...) Read more
- 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(...) Read more
- Gnomonic Projection A chart projection of part of a hemisphere showing the earth's grid projected by radials from a point at the centre of the sphere onto a plane(...) Read more
- Go AboutTo change tack by altering course to bring the wind on the other side Read more
- Going AsternWhen going backwards through the water you may hear the skipper say: "I am going astern". Read more
- Phonetic Alphabet Golf Phonetic alphabet letter G. In marine terminology, "Golf" refers to the letter "G" in the International Code of Signals. Pilotage: When a(...) Read more
- Goose WingingTo set the mainsail on one side of the vessel and the headsail on the other when running Read more
- Gooseneck A gooseneck is a fitting on a sailboat that connects the boom to the mast. It allows the boom to pivot and move freely, positioning the sail(...) Read more
- GoosewingedHaving one sail set on each side of the boat when running directly downwind. Read more
- Grab RailRails fitted above and below decks to grab at when the vessel heels Read more
- GroundA general term for the anchors, cables and all the gear required when anchoring Read more
- Guard RailSafety line fitted round the vessel to prevent the crew falling overboard Read more
- GuardrailThe guardrail is normally made of thin wire and protects the crew from falling overboard. It runs around the full deck supported by stanchions(...) Read more
- GunwaleThe upper edge of the side of a vessel Read more
- GuyA line attached to the end of a spar to keep it in position Read more
- Gybe-oh!The call to indicate that the helm is being put across to gybe Read more
- Hand Bearing Compass A hand-bearing compass is a portable compass held in the hand that is used to take bearings of objects or landmarks to determine their location(...) Read more
- Handy BillyA loose block and tackle with a hook or tail on each end, which can be used wherever it is needed. Usually made up of one single and one double block. Read more
- HankA fastener attached to the luff of the headsail that attaches the headsail to the forestay. Typical designs include a bronze or plastic hook(...) Read more
- Harden InTo haul in the sheets to bring the sail closer to the centreline; the opposite of ease out Read more