WebGross tonnage (GT, G.T. or gt) is a nonlinear measure of a ship's overall internal volume.Gross tonnage is different from gross register tonnage. Neither gross tonnage nor gross register tonnage should be confused with measures of mass or weight such as deadweight tonnage or displacement.. Gross tonnage, along with net tonnage, was …

WebTonnage measurements. Tonnage measurements are governed by an IMO Convention (International Convention on Tonnage Measurement of Ships, 1969 (London-Rules)), which initially applied to all ships built after July 1982, and to older ships from July 1994.. Gross tonnage (GT) is a function of the volume of all of a ship's enclosed spaces (from keel to …

WebDepending on design requirements, some ships have extremely large internal volumes in order to serve their duties. Gross tonnage is a monotonic and 1-to-1 function of the ship's internal structural volume. It does not include removable objects placed outside the deck or superstructure, like the shipping containers of a container ship.

WebCompensated Gross Tonnage (CGT) is an indicator of the amount of work that is necessary to build a given ship and is calculated by multiplying the tonnage of a ship by a coefficient, which is determined according to type and size of a particular ship. The standard CGT system was developed in 1977 by the OECD so that inter-country shipbuilding …

WebThe 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. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, …

WebA hull is the watertight body of a ship, boat, or flying boat.The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck.Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast.The line where the hull meets the water surface is called the waterline

WebSymphony of the Seas is an Oasis-class cruise ship owned and operated by Royal Caribbean International. She was built in 2018 in the Chantiers de l'Atlantique shipyard in Saint-Nazaire, France, the fourth in Royal Caribbean's Oasis class of cruise ships. At 228,081 GT, she was the largest cruise ship in the world by gross tonnage when built, …

WebShe has a gross register tonnage of 12,170 tons and a net register tonnage of 7,637 tons. The first keel plate was laid on April 20, 1959. Edward L. Ryerson was the third of the thirteen so-called 730-class of lake freighters built; five were American, of …

WebThe International Convention for the Prevention of Pollution from Ships, 1973 as modified by the Protocol of 1978, or "MARPOL 73/78" is one of the most important international marine environmental conventions. MARPOL 73/78, MARPOL is an amalgamation of the words "marine and pollution" in multiple languages and a short way to refer to the purpose of the …

Web標準貨物船換算トン数（Compensated gross tonnage、CGT） -- 船舶の建造工事量を表す指標である。船種が異なれば、設計条件や内部構造も異なり、要求される技術のレベルも異なる。タンカーやばら積み船と比べ、客船は手間や資材も多く掛る。