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In the middle ages, the normal way of discovering the tonnage of a ship was to load her with wine and see how many tuns could be fitted in. There is an instance of the owner of a new ship, in 1459, being challenged that his safe-conduct was for a 400 ton vessel, whilst he had already loaded more than 600 tons.
Transportation density can be defined as the payload per period, say passenger / day or tonne / day. This can be used as the measure of intensity of the transportation on a particular section or point of transportation infrastructure, say road or railway. This can be used in comparison with the construction, running costs of the infrastructure.
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).
V, the ship's total volume in cubic metres (m 3), and; K, a multiplier based on the ship volume. The value of the multiplier K increases logarithmically with the ship's total volume (in cubic metres) and is applied as an amplification factor in determining the gross tonnage value. K is calculated with a formula which uses the common or base-10 ...
A quire of paper is a measure of paper quantity. The usual meaning is 25 sheets of the same size and quality: 1 ⁄ 20 of a ream of 500 sheets. Quires of 25 sheets are often used for machine-made paper, while quires of 24 sheets are often used for handmade or specialised paper of 480-sheet reams.
Bulk Phosphate Stowage Factor (SF) about 0.90 m 3 /ton (32 ft 3 /ton) In fact, Ship A has space for 55,000 mtons on her holds 70,000/0.90 = 77,000 mtons or 2,470,000/32 = 77,000 mtons (rounded) However, Ship A can only take 55,000 mtons in weight of Bulk Phosphate before Ship A loadline is submerged Stowage Factor (SF) Example 2: Ship B
A shipping ton, freight ton, measurement ton or ocean ton is a measure of volume used for shipments of freight in large vehicles, trains or ships. In the USA, it is equivalent to 40 cubic feet (1.1 m 3) while in the UK it is 42 cubic feet (1.2 m 3). [1] [2] It should not be confused with other types of ton which also measure
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.