Gross register tonnage ( GRT , grt , g.r.t. , gt ), or gross registered tonnage , is a ship's total internal volume expressed in "register tons", each of which is equal to 100 cubic feet (2.83 m ). Replaced by Gross Tonnage (GT), gross register tonnage uses the total permanently enclosed capacity of the vessel as its basis for volume. Typically this is used for dockage fees, canal transit fees, and similar purposes where it is appropriate to charge based on the size of the entire vessel. Internationally, GRT may be abbreviated as BRT for the German " Bruttoregistertonne ".
5-481: SS Aud was a 1,102 gross register tons (GRT) Norwegian steamboat , built in 1907 in Bergen , Norway , by Bergen Mekaniske Verksted for J. Kuhnle, Jr. During World War I , she was stopped and searched on 30 November 1916 by SM UB-18 at 50°19′N 5°33′W / 50.317°N 5.550°W / 50.317; -5.550 when sailing from Cardiff , Wales , to Lisbon , Portugal , with
10-530: A load of coal. UB-18 ′s commanding officer , Claus Lafrenz, declared the cargo contraband and sank the ship after putting the crew in the lifeboats . Captain Andreas Stehen and his men were later picked up by the Spanish steamer SS Alu Mendi , home-ported at Bilbao , Spain , which had also been stopped and searched by UB-18 but released. They returned to Norway unharmed. In April 1916,
15-406: A migration period of 12 years to ensure that ships were given reasonable economic safeguards, since port and other dues are charged according to ship's tonnage. Since 18 July 1994 the gross and net tonnages, dimensionless indices calculated from the total moulded volume of the ship and its cargo spaces by mathematical formulae , have been the only official measures of the ship's tonnage. However,
20-730: Is not a measure of the ship's weight or displacement and should not be confused with terms such as deadweight tonnage or displacement . Gross register tonnage was defined by the Moorsom Commission in 1849. Gross and net register tonnages were replaced by gross tonnage and net tonnage , respectively, when the International Maritime Organization (IMO) adopted The International Convention on Tonnage Measurement of Ships on 23 June 1969. The new tonnage regulations entered into force for all new ships on 18 July 1982, but existing vessels were given
25-656: The German steamer Libau posed as the neutral Aud when delivering a cargo of rifles for the Easter Rising in Ireland . This article about a specific military ship or boat of Norway is a stub . You can help Misplaced Pages by expanding it . Gross register tonnage Net register tonnage subtracts the volume of spaces not available for carrying cargo, such as engine rooms, fuel tanks and crew quarters, from gross register tonnage. Gross register tonnage
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