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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]
OOCL G-class container ship Container ship: 399.9 m (1,312 ft) 61.3 m (201 ft) 235,341: In service COSCO Shipyard Group: OOCL: ONE Innovation: ONE I-class container ship Container ship: 399.9 m (1,312 ft) 61.4 m (201 ft) 235,311: In service Japan Marine United Corporation: Ocean Network Express: Nissei Maru: Globtik Tokyo class Supertanker
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 ...
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.
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 3). Replaced by Gross Tonnage (GT), gross register tonnage uses the total permanently enclosed capacity of the vessel as its basis for volume.
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.
A container ship can decrease fuel use close to one-third if it drops its speed 10%. Since the 2008-2009 recession, major carriers have reduced ship speeds to 19 mph through slow steaming.
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.