Gaff topsailTriangular sail above a fore and aft mainsail
Gaff, peakPole oblique to the mast
GangboardA small bridge for getting on and off a vessel
GangplankBig gangboard generally used on ships
GangwayA ladder dropped laterally to climb up or down
GararingTo do a series of maintenance operations which prevent deterioration
GasketPart of a rope used to collect or furl sails on a spar
GateSystem adopted in some particular valves to close a sea cock or exhaust
GearsAll hardware, blocks, chocks and shrouds which contribute to keep masting in position
GennakerFore sail whose name comes from ‚Genoa‚ e and ‚Spinnaker‚
GenoaBig triangular sail overlapping the mainsail
Gentle breezeWind forms waves with white crests. Degree 2 in Beaufort scale
Get strandedWhen the hull leans on or get stuck on the bottom, both intentionally or accidentally
GmtAcronym of Greenwich Mean Time or Greenwich Meridian Time
GnavVang or reversed tripping line made up of a spar pushing boom downwards
GnomonicsCartographic representations of Earth's surface
Golf.Term which represents the ‚G‚ in the international phonetic alphabet.
Goose footWhen a tackle made up of 2 or more ropes gathers in only one to exercise traction
Gooseneck, parrelThe fitting where boom is fixed
GoreCanvas supports at the sail edges
GPSElectronic device that determines position in real time by interacting with several orbiting satellites.
GrapnelA small anchor with four or five flukes
Gratingp class=Walkable wooden grill above floorings to let water exit
Greenwich.Reference meridian.
Groove (of the mast/boom)Carving in the mast/boom where the sail side is inserted
Gross tonnageThe entire capacity of a ship expressed as one gross ton for each 100 cubic feet of internal volume. It is calculated with the following formula:: length x widthx height x 0.25
GudgeonFemale part of a rudder pivot
GunwaleThe top edge of the deck which helps to walk on in case of heeled boat
GustWeak and irregular wind
GybeTo change tacks by steering away from the wind so that the leach of the sail swings across the eye of the wind.
Gybe - verb -Violent change of boom position
GyrocompassCompass containing a gyroscope instead of a magnet