Re: Mathematics for sub desginers (beginners)

[Jonathan Wallace <jon@zk3.dec.com>]

Hmmmm....no, I think that's backwards.  Saltwater weighs slightly more
because of the salt content.

Jon

Bear Woods wrote:

> Good explanation.....but I have been operating under the assumption
> that seawater is slightly less dense than fresh water.  From the SCUBA
> days ~33ft=1atm=14.7psi in sea water, ~30ft=1atm=14.7psi in fresh
> water.  In the units below this means ~0.445psi/ft for seawater and
> 0.49psi/ft for fresh water.  This means that given equal conditions,
> the sub in fresh water is more bouyant than the one in sea water.
>