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82:(IMO) adopted The International Convention on Tonnage Measurement of Ships on 23 June 1969. The new tonnage regulations entered into force for all new ships on 18 July 1982, but existing vessels were given a migration period of 12 years to ensure that ships were given reasonable economic safeguards, since port and other dues are charged according to ship's tonnage. Since 18 July 1994 the gross and net tonnages,
55:) is a ship's cargo volume capacity expressed in "register tons", one of which equals to a volume of 100 cubic feet (2.83 m). It is calculated by subtracting non-revenue-earning spaces i.e. spaces not available for carrying cargo, for example engine rooms, fuel tanks and crew quarters, from the ship's
59:. Net tonnage is thus used in situations where a vessel's earning capacity is important, rather than its mere size. Net register tonnage is not a measure of the weight of the ship or its cargo, and should not be confused with terms such as
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98:, have been the only official measures of the ship's tonnage. However, the gross and net register tonnages are still widely used in describing older ships.
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Units and
Systems of Measurement Their Origin, Development, and Present Status
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Unit of volume for the cargo capacity of a ship; 100 cubic feet (2.83 m³)
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381:Panama Canal/Universal Measurement System
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137:, Taylor & Francis, p. 752,
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80:International Maritime Organization
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254:Length between perpendiculars
439:Twenty-foot equivalent unit
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386:Thames measurement tonnage
36:Ton § Units of volume
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460:Builder's Old Measurement
360:Compensated gross tonnage
306:Load line (Plimsoll Line)
196:Retrieved 2011-10-17.
174:Retrieved 2011-10-17.
131:Stopford, Martin (2009),
78:, respectively, when the
536:Metacentric height (GM)
259:Length at the waterline
402:Gross register tonnage
57:gross register tonnage
495:Standard displacement
443:Intermodal containers
96:mathematical formulae
645:Nautical terminology
407:Net register tonnage
311:Under keel clearance
90:of the ship and its
41:Net register tonnage
18:Net Register Tonnage
505:Normal displacement
490:Loaded displacement
500:Light displacement
434:Deadweight tonnage
190:2013-12-02 at the
168:2011-10-19 at the
134:Maritime Economics
61:deadweight tonnage
650:Ship measurements
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593:§ Neopanamax
574:Handymax/Supramax
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485:Displacement
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148:, retrieved
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65:displacement
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605:(Qatar-max)
374:Specialized
365:Net tonnage
76:net tonnage
639:Categories
584:Malaccamax
150:2011-10-17
102:References
94:spaces by
30:See also:
609:Seawaymax
579:Handysize
514:Stability
343:Worldwide
327:Air draft
301:Freeboard
624:Yamalmax
569:Chinamax
564:Capesize
559:Baltimax
420:Capacity
188:Archived
166:Archived
614:Suezmax
598:Péniche
589:Panamax
554:Aframax
453:Archaic
427:Current
395:Archaic
350:Tonnage
268:Breadth
32:Tonnage
546:Limits
478:Weight
336:Volume
320:Height
242:Length
141:
88:volume
53:n.r.t.
603:Q-Max
291:Draft
284:Depth
92:cargo
591:and
526:List
275:Beam
139:ISBN
74:and
34:and
63:or
49:nrt
45:NRT
641::
67:.
51:,
47:,
445:)
441:(
227:e
220:t
213:v
43:(
20:)
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