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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).
The ship's hydrostatic tables show the corresponding volume displaced. [4] To calculate the weight of the displaced water, it is necessary to know its density. Seawater (1,025 kg/m 3) is more dense than fresh water (1,000 kg/m 3); [5] so a ship will ride higher in salt water than in fresh. The density of water also varies with temperature.
DWT GT/GRT In service Status Notes Image Ref Seawise Giant: 458.46 m (1,504 ft) 564,650 DWT: 260,851 GT: 1979–2009 Broken up Originally smaller, jumboisation made Seawise Giant the largest ship ever by length, displacement (657,019 tonnes), and deadweight tonnage. [2] Batillus class (4 ships) 414.22 m (1,359 ft) 553,661–555,051 DWT
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 loss, a loss of economic efficiency that can occur when equilibrium for a good or service is not Pareto optimal; Deadweight tonnage, a ship's carrying capacity, which includes cargo, fuel, crew, etc. Dead weight or dressed weight, the weight of an animal carcass after removal of skin, head, feet, visceral organs, etc.
A deadweight is an anchor that relies solely on being a heavy weight. It is usually just a large block of concrete or stone at the end of the chain. Its holding power is defined by its weight underwater (i.e., taking its buoyancy into account) regardless of the type of seabed, although suction can increase this if it becomes buried.
Celestyal Discovery is considered a mid-sized cruise ship [1] measuring 202.85 m (665 ft 6 in) long overall and 179.74 m (589 ft 8 in) between perpendiculars with a beam of 28.1 m (92 ft 2 in) and a draft of 8.75 m (28 ft 8 in). The cruise ship has a 42,289 gross tonnage (GT) and measures 4,157 tons deadweight (DWT). [2]
Handysize is a naval architecture term for smaller bulk carriers or oil tanker with deadweight of up to 50,000 tonnes, [1] although there is no official definition in terms of exact tonnages. Handysize is also sometimes used to refer to the span of up to 60,000 tons, with the vessels above 35,000 tonnes referred to as Handymax or Supramax.