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| There are 76 entries in the glossary. |
| Pages: << < 1 2 3 4 5 6 > >> |
| Goose-Wings | Indicates the jib or staysail being boomed out on the opposite side of the mainsail in a following wind, giving a large amount of sail area presented to the wind. see Wing and Wing. The term originates, however, from square riggers, and means to haul the (weather) tack of a square sail forward, to encourage it to fill when the vessel is hauled so closely on the wind as to begin to backfill the sail. |
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| Gooseneck | The fitting which connects the boom to the mast. |
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| GPS | See Global Positioning System. |
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| Grabrail | A pillar or handhold on a boat - Hand-hold fittings mounted on cabin tops and sides for personal safety when moving around the boat. |
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| Grapnel, Grapple | A small multi-pronged anchor used on dinghies and small boats. Also used to drag along the bottom to recover something that has sunk. |
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| Grave, to | see Bream |
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| Great Circle | The largest circle which can be inscribed on a sphere by a plane that cuts through the center of the sphere. On the earth, the equator is a great circle, as are all the meridians of longitude which pass through both poles. The shortest distance between two points on the earth's surface lies along the great circle which connects the two points. |
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| Green Buoy | Can | A can buoy. A cylindrical buoy painted green and having an odd number used in the United States as a navigational aid. At night they may have a green light. Green buoys should be kept on the left side when returning from a larger body of water to a smaller one. |
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| Green Daymark | A navigational aid used in the United States and Canada to mark a channel. Green triangular daymarks should be kept on the left when returning from a larger to smaller body of water. |
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| Greenwich Mean Time | GMT for short. Greenwich Meridian Time, also known as Universal Time or Zulu time. A time standard that is not affected by time zones or seasons. It is the time used by navigators in celestial navigation. |
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| Gripe | The tendency of a sailing vessel to head up into the wind when sailing close hauled. Can be caused by the vessel's overall trim, an ill-balanced hull or rig, or by her overall design. |
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| Gripes | Small lines or bands used to hold down and secure boats on deck while at sea. |
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| Grog | Rum diluted with water. In the 1700s the daily ration of rum in the British Navy was diluted with water with the idea of reducing drunkenness. The term groggy was derived from the effects of drinking too much grog. |
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| Grommet | A ring or eyelet normally used to attach a line, such as on a sail. |
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| Gross Tonnage | A common measurement of the internal volume of a ship with certain spaces excluded. One ton equals 100 cubic feet; the total of all the enclosed spaces within a ship expressed in tons each of which is equivalent to 100 cubic feet. |
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