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Old August 17th, 2006, 01:21 PM
Rev22:17 Rev22:17 is offline
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Admiral
 
Join Date: May 2003
Location: Massachusetts
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Roland,

The gross tonnage is a function of the moulded volume of all enclosed spaces of the ship. The net tonnage is produced by a formula which is a function of the moulded volume of all cargo spaces of the ship.

The term "moulded volume" (love those British spellings...) clearly refers to the hull rather than supersturcture, and probably is further defined as the portion of the hull that's below the waterline at maximum safe load since that's where the molded form is necessary to minimize drag.

Norm.
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