psneeld
Guru
By using up consumables, the boat generally gets more rolly but if designd well....not dangerous. I believe large cargo vessels going to sea ballast with sea water...well they used to...I lost track after ballast water became such a contention with pollution and transporting non-native species organisms.
I took 3/4 of my fuel tankage out (300 gallons plus big thick steel tanks and put in 2-50 gallon poly tanks). My boa is riding higher in the water but I can't feel or see a difference on the inclinometer in thousands of miles of travelling.
The weights added or removed in non critical places can be pretty significant without changing stability too much. A much smaller weight in a critical are can have much more effect. But that weight has to be significant enough to begin with in comparison to the whole boat.
As pointed out, exacting measurements are truly needed for accurate assessment but other things should be telling a reasonably seasoed skipper what is OK and what isn't.
I am sure 139 pounds is flyshi* under my flybridge fairing. If I can hang my 150 pound dingy out over the side on my boat from a 4 foot higher boom an 4 feet wider than my beam...and hardly notice the list...I am pretty "backyard confident" my stability won' be the issue in rough enough seas to matter...it will be injured crew blown out windows, power loss...etc...etc...
For those with true seagoing boats or plan to take their TT to sea, an accurate stability test/data sheet and sticking to a storage plan would be prudent.
I took 3/4 of my fuel tankage out (300 gallons plus big thick steel tanks and put in 2-50 gallon poly tanks). My boa is riding higher in the water but I can't feel or see a difference on the inclinometer in thousands of miles of travelling.
The weights added or removed in non critical places can be pretty significant without changing stability too much. A much smaller weight in a critical are can have much more effect. But that weight has to be significant enough to begin with in comparison to the whole boat.
As pointed out, exacting measurements are truly needed for accurate assessment but other things should be telling a reasonably seasoed skipper what is OK and what isn't.
I am sure 139 pounds is flyshi* under my flybridge fairing. If I can hang my 150 pound dingy out over the side on my boat from a 4 foot higher boom an 4 feet wider than my beam...and hardly notice the list...I am pretty "backyard confident" my stability won' be the issue in rough enough seas to matter...it will be injured crew blown out windows, power loss...etc...etc...
For those with true seagoing boats or plan to take their TT to sea, an accurate stability test/data sheet and sticking to a storage plan would be prudent.
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