Re: Gross tonnage on SM

Craig & Katherine Briggs
 
Edited

Pat,
Remember that Gross and Net Tonnage on your Ship's Papers IS NOT weight.  It is a measure of volume of cargo a ship can carry that goes back to setting tax rates on shipping. Net is total less machinery space conceptually, but the formulas are a bit arcane. You can get more info on the USCG or NVDOC web pages, which has an easy way to get an approximate measure.

Yours sounds exactly right - my Santorin, which weights some 22000 pounds, or 11 tons has a Gross Registered Tonnage (GRT) of 31 and 28 Net. Again, Registered Tons are cubic volume, not weight.
Cheers,
Craig Briggs, SN68 Sangaris

Join main@AmelYachtOwners.groups.io to automatically receive all group messages.