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Gaff .... A spar which slides up a mast in order to extend the
head of a four sided mainsail. Galvanic corrosion .... The corrosion that occurs when two different metals are immersed in seawater. Table of Nobility. Galvanic table .... A table listing metals in order of nobility, or of differing potentials. Metals with a higher negative potential will corrode faster. Galvanic Corrosion. Gavanize .... The process used to coat iron with a thin layer of zinc to protect it from corrosion. Galvanic Corrision. Gaskets .... Small cords used to secure a furled sail. Gather way .... Start to move through the water. Galley .... The kitchen area on board a vessel. Gel coat .... The external coat of resin on a fibreglass hull which has a high gloss finish. Gennaker .... A sail that is a cross between a genoa and a spinnaker. Genoa .... A very large headsail, which is set on the forestay and has a considerable overlap with the mainsail. Geographical range .... The maximum range at which a light is visible, within the limitations of the curvature of the earth and the height of the light and of the viewing point. German Bight .... The name given to a sea area situated off the Northern coast of Germany. Ghibli .... A hot Southerly wind blowing into the Mediterranean from North Africa. Ghosting .... Moving gently through the water in an extremely light wind. Gimbals .... A pivoting devise which enables an object to be suspended whilst maintaining it in a horizontal position. Give way .... To allow another vessel right of way. GMDSS .... Global Maritime Distress and Safety System. Nautical Abbreviations GMT .... Greenwich Mean Time. Nautical Abbreviations Go about .... To change to a different tack. Golf ..... The letter G in the phonetic alphabet. Phonetic Alphabet. Gooseneck .... The universal joint fitting which is used to attach the boom to the mast. Goose-wing .... To run or sail before the wind, with the mainsail and the foresail set on opposite sides of the vessel. GP .... Geographical Position. Nautical Abbreviations Gp fl .... Group flashing light. Nautical Abbreviations Navigation Lights. GP Occ .... Group occulting light. Nautical Abbreviations Navigation Lights. GPS .... Global Positioning System. Nautical Abbreviations Grab rail .... A rail or handhold used for support when a vessel is in motion. Gradient wind .... Wind that is caused by the atmospheric pressure and is not affected by friction with the earths surface. Grapnel .... A type of light anchor. Anchor Types. Gregale .... A cold northerly wind in the Ionian Sea. Grid .... A framework of parallel lines printed on a chart, forming a basis for map references. Gripe .... To have a tendency to pull hard up into the wind. Grommet .... A ring of rope or a loop formed at the end of a rope. Ground tackle .... The equipment that is used for anchoring; anchors, rode, etc. Ground track .... The actual course travelled over the sea bed. GRP .... Glass Reinforced Plastic. Nautical Abbreviations Guard rail .... A safety rail surrounding the deck. Gudgeon .... A tubular fitting into which the pin of pintle of the rudder, is inserted allowing it to swivel. Gunter rig .... A rig where the gaff slides up the mast to form an extension to it. Gunwale .... The top edge of the hull. Guy .... A rope that is used to steady a spar. Gybe .... To change from one tack to the other with the wind from the aft. |