VSLUNT

FEATURE OBJECT ATTRIBUTES

Attribute: vessels characteristics unit

Acronym: VSLUNT Code:

Camel case: vesselsCharacteristicsUnit

Attribute type: Simple

Data type: Enumeration

Expected input:

ID Meaning INT 1 M-4

1 : metre

2 : foot

3 : metric ton

4 : ton

5 : short ton

6 : gross ton

7 : net ton

8 : Panama Canal/Universal Measurement System net tonnage

9 : Suez Canal net tonnage

10 : none

11 : Suez Canal gross tonnage

12 :

13 :

14 :

15 :

Definitions:

metre:
The metre (or meter) is the base unit of length in the International System of Units (SI). It is defined as the distance travelled by light in vacuum in 1⁄299,792,458 of a second.
(Adapted from http://en.wikipedia.org/wiki/Metre 4 Oct 2010)

foot:
A foot (plural: feet) is a non-SI unit of length in a number of different systems including English units, Imperial units, and United States customary units. The most commonly used foot today is the international foot. There are three feet in a yard and 12 inches in a foot.
(Adapted from http://en.wikipedia.org/wiki/Feet_(unit) 4 Oct 2010)

metric ton:
The tonne or metric ton (U.S.), often redundantly referred to as a metric tonne, is a unit of mass equal to 1,000 kg (2,205 lb) or approximately the mass of one cubic metre of water at four degrees Celsius. It is sometimes abbreviated as mt in the United States, but this conflicts with other SI symbols. The tonne is not a unit in the International System of Units (SI), but is accepted for use with the SI. In SI units and prefixes, the tonne is a megagram (Mg). The Imperial and US customary units comparable to the tonne are both spelled ton in English, though they differ in mass. Pronunciation of tonne (the word used in the UK) and ton is usually identical, but is not too confusing unless accuracy is important as the tonne and UK long ton differ by only 1.6%.
(Adapted from http://en.wikipedia.org/wiki/Tonne 4 Oct 2010)

ton:
Long ton (weight ton or imperial ton) is the name for the unit called the "ton" in the avoirdupois or Imperial system of measurements, as used in the United Kingdom and several other Commonwealth countries. It has been mostly replaced by the tonne, and in the United States by the short ton. One long ton is equal to 2,240 pounds (1,016 kg) or 35 cubic feet (0.9911 m3) of salt water with a density of 64 lb/ft³ (1.025 g/ml). It has some limited use in the United States, most commonly in measuring the displacement of ships, and was the unit prescribed for warships by the Washington Naval Treaty—for example battleships were limited to a mass of 35,000 long tons (36,000 t; 39,000 ST).
(Adapted from http://en.wikipedia.org/wiki/Long_ton 4 Oct 2010)

short ton:
The short ton is a unit of weight equal to 2,000 pounds (907.18474 kg). In the United States it is often called simply ton without distinguishing it from the metric ton (tonne, 1,000 kilograms) or the long ton (2,240 pounds / 1,016.0469088 kilograms); rather, the other two are specifically noted. There are, however, some U.S. applications for which unspecified tons normally means long tons (for example, Navy ships) or metric tons (world grain production figures).

Both the long and short ton are defined as 20 hundredweights, but a hundredweight is 100 pounds (45.359237 kg) in the U.S. system (short or net hundredweight) and 112 pounds (50.80234544 kg) in the Imperial system (long or gross hundredweight).
(Adapted from http://en.wikipedia.org/wiki/Short_ton 4 Oct 2010)

gross ton:
Gross tonnage (GT) is a function of the volume of all ship's enclosed spaces (from keel to funnel) measured to the outside of the hull framing. There is a sliding scale factor. So GT is a kind of capacity-derived index that is used to rank a ship for purposes of determining manning, safety and other statutory requirements and is expressed simply as GT, which is a unitless entity, even though its derivation is tied to the cubic meter unit of volumetric capacity.

Tonnage measurements are now governed by an IMO Convention (International Convention on Tonnage Measurement of Ships, 1969 (London-Rules)), which applies to all ships built after July 1982. In accordance with the Convention, the correct term to use now is GT, which is a function of the moulded volume of all enclosed spaces of the ship.
(Adapted from http://en.wikipedia.org/wiki/Tonnage 4 Oct 2010)

net ton:
Net tonnage (NT) is based on a calculation of the volume of all cargo spaces of the ship. It indicates a vessel’s earning space and is a function of the moulded volume of all cargo spaces of the ship.
(Adapted from http://en.wikipedia.org/wiki/Tonnage 4 Oct 2010)

Panama Canal/Universal Measurement System net tonnage
The Panama Canal/Universal Measurement System (PC/UMS) is based on net tonnage, modified for Panama Canal purposes. PC/UMS is based on a mathematical formula to calculate a vessel's total volume; a PC/UMS net ton is equivalent to 100 cubic feet of capacity.
(Adapted from http://en.wikipedia.org/wiki/Tonnage 4 Oct 2010)

Suez Canal Net Tonnage
The Suez Canal Net Tonnage (SCNT) is derived with a number of modifications from the former net register tonnage of the Moorsom System and was established by the International Commission of Constantinople in its Protocol of 18 December 1873. It is still in use, as amended by the Rules of Navigation of the Suez Canal Authority, and is registered in the Suez Canal Tonnage Certificate.
(Adapted from http://en.wikipedia.org/wiki/Tonnage 4 Oct 2010)

none
Can be used for net and gross tonnages, including Panama Canal/Universal Measurement System net tonnage and The Suez Canal Net Tonnage.

Suez Canal Gross Tonnage
The Suez Canal Gross Tonnage (SCGT) is derived with a number of modifications from the former net register tonnage of the Moorsom System and was established by the International Commission of Constantinople in its Protocol of 18 December 1873. It is still in use, as amended by the Rules of Navigation of the Suez Canal Authority, and is registered in the Suez Canal Tonnage Certificate.
(Adapted from http://en.wikipedia.org/wiki/Tonnage 4 Oct 2010)

Remarks:

Distinction:

Nil

Justification:

New attribute

Comments:

No comments.

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