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The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle , by first calculating the volume of water displaced by the ship, then converting that value into weight.
Lightweight displacement – LWD – The weight or mass of the ship excluding cargo, fuel, ballast, stores, passengers, and crew, but with water in the boilers to steaming level. Loadline displacement – The weight or mass of the ship loaded to the load line or plimsoll mark. Deadweight tonnage (DWT) is a measure of how much weight a ship can ...
Deadweight tonnage is a measure of a vessel's weight carrying capacity, not including the empty weight of the ship. It is distinct from the displacement (weight of water displaced), which includes the ship's own weight, or the volumetric measures of gross tonnage or net tonnage (and the legacy measures gross register tonnage and net register tonnage).
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 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.
This is a list of container ships with a capacity larger than 20,000 twenty-foot equivalent units (TEU). Container ships have been built in increasingly larger sizes to take advantage of economies of scale and reduce expense as part of intermodal freight transport. Container ships are also subject to certain limitations in size. Primarily ...
Displacement (Δ) is the weight of water equivalent to the immersed volume of the hull. Longitudinal centre of buoyancy ( LCB ) is the longitudinal position of the centroid of the displaced volume, often given as the distance from a point of reference (often midships) to the centroid of the static displaced volume.
The long ton was the unit prescribed for warships by the Washington Naval Treaty of 1922; for example, battleships were limited to a displacement of 35,000 long tons (35,560 t; 39,200 short tons). The long ton is traditionally used as the unit of weight in international contracts for many bulk goods and commodities. [citation needed]