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Gross tonnage is calculated by measuring a ship's volume (from keel to funnel, to the outside of the hull framing) and applying a mathematical formula. Gross tonnage (GT, G.T. or gt) is a measure of a ship's overall internal volume. Gross tonnage is different from gross register tonnage. [1]
Gross tonnage Status Main builder Operator ref Pioneering Spirit - Crane vessel: 382 m (1,253 ft) 124 m (407 ft) 10–15 m (33–49 ft) 403,342 In service Daewoo Shipbuilding & Marine Engineering: Allseas [1] Prelude FLNG - Floating production storage and offloading: 488 m (1,601 ft) 74 m (243 ft) 17 m (56 ft) 300,000 In service
Tonnage and displacement Gross tonnage and displacement are not equivalent and vary depending on the type of ton (e.g. metric or imperial) and how they are calculated. How gross tonnage is calculated has changed somewhat over time, but has always been a measure of cargo space (i.e., it is a measure of the volume of the cargo space), and figures ...
Tonnage is a measure of the capacity of a ship, and is commonly used to assess fees on commercial shipping.The term derives from the taxation paid on tuns or casks of wine. In modern maritime usage, "tonnage" specifically refers to a calculation of the volume or cargo volume of a ship.
The world's longest ships are listed according to their overall length (LOA), which is the maximum length of the vessel measured between the extreme points in fore and aft. In addition, the ships' deadweight tonnage (DWT) and/or gross tonnage (GT) are presented as they are often used to describe the size of a vessel. The ships are listed by type.
List of merchant navy capacity by flag is a list of the world foremost fleets of registered trading vessels ranked in both gross tonnage (GT) and deadweight tonnage (DWT) sorted by flag state. The table is based on the annual maritime shipping statistics provided by the British Government and the Department for Transport.
(Merchant ships display gross tonnage ; see tonnage), deadweight and the number of items it can carry i.e. TEU 20 ft equivalent units. Displacement is expressed in tonnes (metric unit). Displacement of a ship built for the US is in long tons, Warships are shown in displacement tons or tonnes. To preserve secrecy, nations sometimes misstate a ...
George Moorsom ordered the entire fleet of British merchant ships to be measured according to the new System and then divided the total gross tonnage by the total registered tonnage. The result was 98.22 cubic feet (2.781 m 3 ) per gross ton, which was rounded to 100 cu ft (2.8 m 3 ) per ton.