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1988 Santgo Tonnage???

Posted: July 18th, 2019, 11:15 am
by Craig_B
I am trying to register for a MMSI# for my VHF radio.
The form is asking what "Gross tonnage (vessel's internal capacity in tons)"

Any ideas?

Oh and how about this one, "Capacity for person on board (maximum number of persons on board"

Thanks

Re: 1988 Santgo Tonnage???

Posted: July 18th, 2019, 11:45 am
by Craig_B
This is what i found using google.

For a boat with a simple sailing hull: Gross Tonnage = (.5 x L x B x D) divided by 100.
So for me i believe the numbers would be (.5x26x11x2) = 2 Tons? ish.



Sound correct to anyone?

:-P

Re: 1988 Santgo Tonnage???

Posted: July 18th, 2019, 12:11 pm
by bud37
Your question got me interested and this is what I found.....

https://wwwapps.tc.gc.ca/Corp-Serv-Gen/ ... 0405_BO_PX

Re: 1988 Santgo Tonnage???

Posted: July 18th, 2019, 12:23 pm
by waybomb
Craig_B wrote:Source of the post This is what i found using google.

For a boat with a simple sailing hull: Gross Tonnage = (.5 x L x B x D) divided by 100.
So for me i believe the numbers would be (.5x26x11x2) = 2 Tons? ish.



Sound correct to anyone?

:-P


I believe D is up to the gunnel. How much water could the hull hold is what they are lookin at.

Re: 1988 Santgo Tonnage???

Posted: July 18th, 2019, 12:43 pm
by Craig_B
waybomb wrote:
Craig_B wrote:Source of the post This is what i found using google.

For a boat with a simple sailing hull: Gross Tonnage = (.5 x L x B x D) divided by 100.
So for me i believe the numbers would be (.5x26x11x2) = 2 Tons? ish.



Sound correct to anyone?

:-P


I believe D is up to the gunnel. How much water could the hull hold is what they are lookin at.


hmmmm yes I think you are correct. So a better guess would be mabye 6 feet for D?
Making the tonnage 8.5?


.

Re: 1988 Santgo Tonnage???

Posted: July 19th, 2019, 1:54 pm
by tomschauer
My carver 355 is 20 gross tons, 16 net.

38.2 13 6.3

Re: 1988 Santgo Tonnage???

Posted: July 19th, 2019, 3:26 pm
by Craig_B
tomschauer wrote:My carver 355 is 20 gross tons, 16 net.

38.2 13 6.3



How did you calculate the gross tonnage?? The formula I found seems to be giving me Net.

I think....... :confused:

Thanks

Re: 1988 Santgo Tonnage???

Posted: July 20th, 2019, 12:52 am
by tomschauer
Net tonnage works from the calcs previously listed.
I may have cheated with the gross tonnage and used the numbers from my USCG Documentation sheet! So am I am not sure how they come up with gross. :-D