asked on the Fanatic and StarBoard forums to see if we get any more "interesting" comments
non, not about ice n carp 
Thierry on the SB forum agreed with my original idea
Farlo on Fanatic forum had one that i had not hear of yet:
"Take a spring dynamometer, attach it to the board and sink it totally. You must have some sort of anchor or ring in a place deep enough, preferably a pool. As the board wants to float, it will pull with a force equal to its volume (in liters) less its weight (in Kgs). This may require a few meters of rope. Don't forget to close the vent screw..."
Now that I've read thru this thread, I'm still not sure which kind of board this discussion would be referring to, if any, but this is the WS side of the site.
Should volume include weight in some sort of way? Seems to be the main question. Well that depends.
In windsurfing it sure does, you can have two identical boards, made by the same company, one carbon, and one epoxy sandwich or something similar, with identical volume, but the carbon board weighs measurably less.
The carbon board will sail much faster, less friction, it's the way it is, so the volume is only part of the story.
So just how bad do you really need to know only the volume? As compared to what?
That's all I know, I will now return the control over to the rest of the pack.
Take a suitable person (Mark?), someone who is full of hot air for natural buoyancy but also sufficiently full of s*** to weigh the board down.
Take said person and board out into the middle of a bay that contains non-tropical sub-arctic fresh water without carp.
If the board sinks under the weight of the person you know the board is somewhere under a cubic meter of volume, if the board floats with the person on it then you know it can support a literal s***ton and you will never have any problems floating on it yourself.
Select to expand quotejoe windsurf said..
asked on the Fanatic and StarBoard forums to see if we get any more "interesting" comments
non, not about ice n carp
Thierry on the SB forum agreed with my original idea
Farlo on Fanatic forum had one that i had not hear of yet:
"Take a spring dynamometer, attach it to the board and sink it totally. You must have some sort of anchor or ring in a place deep enough, preferably a pool. As the board wants to float, it will pull with a force equal to its volume (in liters) less its weight (in Kgs). This may require a few meters of rope. Don't forget to close the vent screw..."
You will still have to take into account the weight of the board for the same reason as I said earlier.
If the board weighs 110 kg and has a volume of 111 liters, then it will take a force of 1 kg to hold it down, and clearly, the board does not have a volume of 1 liter.
If you include the weight of the board, then it will give the right answer. (Neglecting salt and/or carp content)
{edit} oops,.. I just read it more carefully and you have already included that in your reply.
"less its weight (in Kgs)" So now I agree entirely,..because it's what I said right back on page 1 , except that it make no allowance for carp.
What we really need is some input from a "superior intellect".
Apparently we do have the services of one on this site but so far he has been silent.
I think it might be because he is working on an all inclusive formula to define the matter completely, taking into account all variables,.. fresh water, salt water, heavy water (for nuclear fizzicists), water with carp, heavy boards, light boards, bored with everything, etc.
Abominator,.. where are you?
Select to expand quoteTheSailingMoose said..
Take a suitable person (Mark?), someone who is full of hot air for natural buoyancy but also sufficiently full of s*** to weigh the board down.
Sorry for whatever I must have done to insult you, and good luck with the rest of puberty
