[QUOTE=t.mcg;144921]I searched as you mention. According to that site I got gross tonnage 1691. Net tonnage 507 I guess this changes things with the numbers[/QUOTE]
For licesning, net tonnage is irrelevant. The issue is what type of “gross tons.” Is it Gross Registered Tons (GRT), or Gross Tons (GT) under the International Tonnage Convention (ITC). The GRT is usually lower than the GT. There is no way to convert one to the other, but for licensing purposes the Coast Guard considers 1,600 GRT to be equivalent to 3,000 GT, see 46 CFR 10.232(i). If you’re going for 2nd Mate, the threshold for whether or not you get a tonnage limt is 1,600 GRT and/or 3,000 GT. If all your time is on this one vessel, you would not get a tonnage limit if the vessel is 1,691 GRT, but you will get one if it is 1,691 GT. I suspect it is GT as there are advantages to keeping a vessel under 1,600 GRT, and once that threshold is crossed, it’s usually by more than 91 GRT.
[QUOTE=t.mcg;144920]I’m on a osv all my time that I put my app in with was time on a osv.[/QUOTE]
If the vessel is an OSV, it is almost certainly measured under GT as most OSVs are measured under GT only.