Could some one please tell me the Gross tons of a catalina 34, 1988 model. i know i have it but cant find it. thanks howard
gross tons
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Are you sure
you want the gross tonnage? Can only be determined by a measurement survey. Gross, Nett and Deadweight. Gross and Nett are cubic (volume) measurements stated in tons. 100 cubic feet to the ton. Deadweight or displacement is actual weight. Rick I http://groups.yahoo.com/group/beneteau393/ beneteau393 : Beneteau393 Group
you want the gross tonnage? Can only be determined by a measurement survey. Gross, Nett and Deadweight. Gross and Nett are cubic (volume) measurements stated in tons. 100 cubic feet to the ton. Deadweight or displacement is actual weight. Rick I http://groups.yahoo.com/group/beneteau393/ beneteau393 : Beneteau393 Group
I don’t know what it is
If you want it for documentation I don’t know what it is but you can figure it out for yourself. As far as I know the rule for gross tonnage is half the length, times beam, times depth inside the hull instead of draft, divided by 100. That is 1/2(L x B x D ÷ 100) All the measurements are in feet. Net tonnage is what used for documentation and that’s 9/10 of gross tonnage with minimum size for federal documentation being 5 net tons. Hope this helps and all the best, Robert Gainer
If you want it for documentation I don’t know what it is but you can figure it out for yourself. As far as I know the rule for gross tonnage is half the length, times beam, times depth inside the hull instead of draft, divided by 100. That is 1/2(L x B x D ÷ 100) All the measurements are in feet. Net tonnage is what used for documentation and that’s 9/10 of gross tonnage with minimum size for federal documentation being 5 net tons. Hope this helps and all the best, Robert Gainer
Formula for calculating gross and net tonnage
Take the horizontal distance between the outboard ends of the boat not including rudders and bow sprits. Multiply that by the maximum beam outside to outside. Multiply that by the distance from the sheer line not including bulwarks or cap rails to the outside bottom of the hull not including the keel. Add the volume of the deck house/cabin top. Multiply by .5 for sailboats and .67 for power boats. Divide by 100. This will give you the "Gross Tonnage". Net tonnage is 90% of gross for sailboats and 80% for power boats. Btw...tonnage has nothing to do with weight or displacement... It is a measure of how much wine a vessel can carry. The word "tun" was originally a size of a cask used to ship wine from Spain & Portugal to England. In 1347 a tax of 3 shillings per tun was imposed and this was called "tonnage." A ship's size became known by the number of casks it could carry, and the word tonnage started being used to describe a ship's size. It was found that if you took the length x the breadth x the depth of the hold under the deck and divided by 100 it was close to the number of casks. That is where we get the "Measurement ton" of 100 cubic feet per ton. The word "rummage" shares its origin with "tonnage." Rummage was the manner in which the wine casks were stored in the hold of the ship and came to refer to the whole ship's cargo. After a voyage any unclaimed and damaged cargo was stacked on the dock beside the boat and offered for sale - a rummage sale.
Take the horizontal distance between the outboard ends of the boat not including rudders and bow sprits. Multiply that by the maximum beam outside to outside. Multiply that by the distance from the sheer line not including bulwarks or cap rails to the outside bottom of the hull not including the keel. Add the volume of the deck house/cabin top. Multiply by .5 for sailboats and .67 for power boats. Divide by 100. This will give you the "Gross Tonnage". Net tonnage is 90% of gross for sailboats and 80% for power boats. Btw...tonnage has nothing to do with weight or displacement... It is a measure of how much wine a vessel can carry. The word "tun" was originally a size of a cask used to ship wine from Spain & Portugal to England. In 1347 a tax of 3 shillings per tun was imposed and this was called "tonnage." A ship's size became known by the number of casks it could carry, and the word tonnage started being used to describe a ship's size. It was found that if you took the length x the breadth x the depth of the hold under the deck and divided by 100 it was close to the number of casks. That is where we get the "Measurement ton" of 100 cubic feet per ton. The word "rummage" shares its origin with "tonnage." Rummage was the manner in which the wine casks were stored in the hold of the ship and came to refer to the whole ship's cargo. After a voyage any unclaimed and damaged cargo was stacked on the dock beside the boat and offered for sale - a rummage sale.
Try this site
Try http://www.uscg.mil/hq/msc/t3/cg5397/cg5397.form.htm and http://homeport.uscg.mil/mycg/portal/ep/channelView.do?channelId=-24502&channelPage=%2Fep%2Fchannel%2Fdefault.jsp
Try http://www.uscg.mil/hq/msc/t3/cg5397/cg5397.form.htm and http://homeport.uscg.mil/mycg/portal/ep/channelView.do?channelId=-24502&channelPage=%2Fep%2Fchannel%2Fdefault.jsp
check list of documented vessels
If you know the name of any coast guard documented Catalina 34 you can look the name up at the attached link and it will give you information on that boat which will include the tonnage. I assume all Catalina 34's would be the same.
If you know the name of any coast guard documented Catalina 34 you can look the name up at the attached link and it will give you information on that boat which will include the tonnage. I assume all Catalina 34's would be the same.
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