[PSUBS-MAILIST] Re: Propane tank

[Ian Roxborough <irox@ix.netcom.com>]

Hi Mike,

if you don't have access to resources to make a 1-ATM
submarine, have you consider making an ambient sub
instead.

I'm not saying that ambient subs are easier to build
than 1-ATM subs, but it does remove the issue of finding
a safe pressure vessel to use.  After learning more
about ambient subs at the psubs conference I think they
look like a LOT of fun.

You don't mention a lot about the propane tank you want
to use, any estimation of crush depth that people have
give on this list will be working with the assumption
that the propane tank is new and in perfect condition.
I'm sure you are aware that any small (invisible) cracks
or dents could drastically reduce the usable strength
of the propane tank.  If it is a used propane tank, then
you'll have to deal with the propane that has been absorbed
by the metal.

Ian.

On Mon, 2 Sep 2002 22:39:23 -0500
majerus@iowatelecom.net wrote:

>     To anyone that might know, 
>         I have a 500 gallon propane tank with a .312 thousands thickness and was wondering if that might be able to stand pressure of 75 feet or so, I know that some are not keen on using one but I really want to build a sub but do not have some of the resources that some might have. Also, I was wondering how to make a depth gauge.
>         Thank you, Mike
> 
> 


-- 
The moon ate the sun on Monday and it was an awsome sight to see.