GA General Average
GALLEY the kitchen area of a boat.
GANGWAY a narrow portable platform used as a passage, by persons entering or leaving a vessel moored alongside a pier or quay.
GATF general agreements on tariffs and trade
GDP Gross Domestic Product: The total value of goods and services produced by a nation over a given period, usually 1 year.
GEAR A general term for ropes, blocks, tackle and other equipment
GENERAL CARGO a non-Bulk oil cargo composed of miscellaneous goods.
Genoa a large foresail that overlaps the mainsail
Geographical Rotation Ports in order of calling
Gimball a device that suspends a compass so that it remains level
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GIS Geographic Information System
GIVE-WAY VESSEL a term used to describe the vessel which must yield in meeting, crossing, or overtaking situations.
GL Germanischer Lloyd (classification society)
GLA General Lighthouse Authority
Glonass Global navigation satellite system
GLS (GLESS) Gearless
GMDSS global maritime distress and safety system
GMT Greenwich mean time
GN (or GR) Grain (Capacity)
GNCN Gencon (GENERAL CONDITIONS)
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GNP Gross national product: GDP plus the net income accruing from foreign sources.
GO Gas Oil
GOC general operators' certificate with regard to GMDSS
Gooseneck a device that connects the boom to the mast
GOVERNMENT IMPELLED cargo owned by or subsidized by the Federal Government.
GP Grain Capacity. Cubic capacity in 'grain'
GPS global positioning system
GR Geographical Rotation. Ports in order of calling
GRAB RAILS Hand-hold fittings mounted on cabin tops and sides for personal safety when moving around the boat.
Grain Capacity Cubic capacity in 'grain"
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GRD Geared
GREAT LAKES PORTS Ports in the lakes of Canada and/or USA popular for grain shipments. In Canada: Port Arthur and Fort William in Lake Superior; Hamilton, Kingston, Toronto and Prescott in Lake Ontario. In USA: Chicago, Milwaukee in Lake Michigan; Duluth and Superior in
GREAT LAKES SHIP cargo ship developed to carry raw materials and manufactured goods on the Great Lakes. most carry Bulk cargoes of grain, iron ore or coal.
GROSS FREIGHT freight money collected or to be collected without calculating the expenses relating to the running Cost of the ship for the voyage undertaken.
GROSS REGISTERED TONS 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.
Ground Tackle the anchor, chain and rode
GROUND TACKLE a collective term for the anchor and its associated gear.
GROUNDING Deliberate contact by a ship with the bottom while she is moored or anchored as a result of the water level dropping.
GRP Glass Reinforced Plastic
GRT Gross Registered Tonnage
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GSB Good, Safe Berth
GSP Good, Safe Port
GT gross tonnage
GTEE Guarantee
GUNWALE The upper edge of a ship's sides
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