A long ton (sometimes known as a gross ton or weight ton) is the name used in the US for the unit called the "ton" in the avoirdupois or Imperial system of measurements, as used (alongside the metric system) in the United Kingdom and several other Commonwealth countries. It is equal to 2240 pounds (exactly 1016.0469088 kilograms). It has some limited use in the US, most commonly in measuring the displacement of ships. Wikiquote has a collection of quotations by or about: United States Wikinews has a related story: United States United States government CIA World Factbook Entry for United States House. ... The word ton or tonne is derived from the Old English tunne, and ultimately from the Old French tonne, and referred originally to a large cask with a capacity of 252 wine gallons, which holds approximately 2100 pounds of water. ... The avoirdupois system is a system of weights defining terms such as pound and ounce. ... This article is about post-1824 Imperial units, please see also English unit, U.S. customary unit or Avoirdupois. ... The International System of Units (symbol: SI) (for the French phrase Syst me International dUnit s) is the most widely used system of units. ... Flag of the Commonwealth of Nations The Commonwealth of Nations is an association of independent sovereign states, most of which are former colonies once governed by the United Kingdom as part of the British Empire. ... Officially the pound is the name for at least three different units of mass: The pound (avoirdupois). ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ... In fluid mechanics, displacement occurs when an object is immersed in a fluid, pushing it out of the way and taking its place. ... Italian ship-rigged vessel Amerigo Vespucci in New York harbor, 1976. ...
The standard ton in the US measurement system is the "short ton", equal to 2000 pounds (exactly 907.18474 kg). Both long and short tons are defined as 20 hundredweights, but a hundredweight is 112 pounds (which is equal to 8 stone) in the Imperial system (long or gross hundredweight) and 100 pounds in the US system (short or net hundredweight). The U.S. customary units, commonly known in the United States as English units or standard units, are the non-metric units of measurement that are currently used in the U.S., in some cases alongside the metric system of units. ... The short ton is a unit of mass equal to 907. ... Hundred weight or hundredweight is a unit of measurement for mass in both the system of measurement used in the United Kingdom and Ireland (and previously throughout the British Commonwealth), and in the system used in the United States. ... A stone is a unit of weight within the Imperial units system used in the United Kingdom and Ireland, and formerly in a number of Commonwealth countries. ...
The spelling "tonne" denotes the metric tonne of 1000 kilograms (approximately 2204.623 pounds). A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 103 kg (= 106 g). ...
Gross Register Tonnage represents the total internal volume of a vessel, with some exemptions for non-productive spaces such as crew quarters; 1 gross register ton is equal to a volume of 100 cubic feet (2.83 m³).
Gross register tonnage was replaced by gross tonnage in 1994, under the Tonnage Measurement convention of 1969.
Gross Tonnage refers to the volume of all ship's enclosed spaces (from keel to funnel) measured to the outside of the hull framing.
Gross tonnage is the capacity of the spaces in the ship's hull and of the enclosed spaces above the deck available for cargo, stores, fuel, passengers, and crew.
Net tonnage is the gross tonnage less the spaces used for the accommodation of the ship's Master, Officers, Crew, and the navigation and propulsion machinery.
The components of this world fleet, by type of cargo, were 6,153 oil tankers of 132,438,195 grosstons; 4,843 ore and bulk carriers of 116,305,556 grosstons; 16,206 general cargo ships of 50,528,514 grosstons; 1,249 fully cellular container ships of 25,979,678 grosstons; and 4,284 ferries and passenger ships of 11,818,971 grosstons.
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