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  2. Ship measurements - Wikipedia

    en.wikipedia.org/wiki/Ship_measurements

    Tonnage – a number derived from any of several methods to calculate the volume or other number indicative of a ship's cargo carrying capacity. Gross tonnage – GT – Not expressible in units of mass or weight but is based on the total volume of the vessel in cubic meter with a formula applied.

  3. Gross tonnage - Wikipedia

    en.wikipedia.org/wiki/Gross_tonnage

    The gross tonnage calculation is defined in Regulation 3 of Annex 1 of The International Convention on Tonnage Measurement of Ships, 1969. [3] It is based on two variables, and is ultimately an increasing one-to-one function of ship volume: V, the ship's total volume in cubic metres (m 3), and; K, a multiplier based on the ship volume.

  4. Displacement (ship) - Wikipedia

    en.wikipedia.org/wiki/Displacement_(ship)

    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. Traditionally, various measurement rules have been in use, giving various measures in long tons. [1]

  5. Tonnage - Wikipedia

    en.wikipedia.org/wiki/Tonnage

    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.

  6. Container ship - Wikipedia

    en.wikipedia.org/wiki/Container_ship

    Ship-owners and buyers negotiate scrap prices based on factors such as the ship's empty weight (called light ton displacement or LTD) and prices in the scrap metal market. [70] Scrapping rates are volatile, the price per light ton displacement has swung from a high of $650 per LTD in mid-2008 to $200 per LTD in early 2009, before building to ...

  7. Freight rate - Wikipedia

    en.wikipedia.org/wiki/Freight_rate

    Many shipping services, especially air carriers, use dimensional weight for calculating the price, which takes into account both weight and volume of the cargo. For example, bulk coal long-distance rates in America are approximately 1 cent/ton-mile. [2] So a 100 car train, each carrying 100 tons, over a distance of 1000 miles, would cost $100,000.

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  9. Sail area-displacement ratio - Wikipedia

    en.wikipedia.org/wiki/Sail_Area-Displacement_ratio

    The sail area-displacement ratio (SA/D) is a calculation used to express how much sail a boat carries relative to its weight. [1]/ = [() /] = () In the first equation, the denominator in pounds is divided by 64 to convert it to cubic feet (because 1 cubic foot of salt water weights 64 pounds).