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TermDefinition
- Gaff RigGaff rig is a sailing rig (configuration of sails) in which the sail is four-cornered. The sail is controlled at the top usually by a head spar(...) Read more
- Weather (Meteorology) Gale Beaufort Scale - Force 8 (Gale Force 8) A gale refers to a strong wind between 34 to 40 knots (39 to 46 mph or 63 to 74 km/h) on the(...) Read more
- GalleyAn area where food is prepared and cooked Read more
- GelcoatThe outer unreinforced layer of resin in a GRP hull Read more
- GenoaA large overlapping headsail set in light breezes Read more
- Geometric Dilution of Precision Geometric Dilution of Precision (GDOP) is a measure in marine navigation that quantifies the effect of satellite geometry on the accuracy of(...) Read more
- GDOP Geometric Dilution of Precision (GDOP) is a measure in marine navigation that quantifies the effect of satellite geometry on the accuracy of(...) Read more
- Give Way In a collision situation, one or more vessels are defined as Give Way. The Give Way vessel should alter its course to concede passage to(...) Read more
- Give Way VesselThe vessel whose duty it is to keep clear of another, she should take early and substantial action to avoid a collision Read more
- Glass Reinforced PlasticA fibre reinforced polymer made of a plastic matrix reinforced by fine fibres of glass. GRP is a lightweight, extremely strong, and robust material. Read more
- GRPA fibre reinforced polymer made of a plastic matrix reinforced by fine fibres of glass. GRP is a lightweight, extremely strong, and robust material. Read more
- GMDSS An internationally (IMO) agreed-upon set of safety procedures, types of equipment, and communication protocols used to increase safety and make(...) Read more
- Global Maritime Distress and Safety System An internationally (IMO) agreed-upon set of safety procedures, types of equipment, and communication protocols used to increase safety and make(...) Read more
- GNSS The collective set of systems that enables positioning devices to calculate latitude & longitude. The system includes solutions including the(...) Read more
- Global Navigation Satellite System The collective set of systems that enables positioning devices to calculate latitude & longitude. The system includes solutions including the(...) 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
- 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
- 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