Re: [PSUBS-MAILIST] hull test

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

The problem is you can only vacumm 14.7psi out the pressure vessel.

Ian.


On Mon, 24 Oct 2005 09:37:28 -0700
daniel@tordaca.com wrote:

> hello every one, i was thinking that to test the presure hull, the
> pressure of the outside of the hull shuld be X times the pressure
> inside the hull depending on the sub design, for example to test a
> k-350 you should take it about 600 ft down the water to make about 300
> psi press against the sub hull, now, those test are not simple, i have
> read all the work that Dan H did to make this test and suddently
> something flashed my mind, if i have to put 300 psi of pressure outside
> of my sub hull, why don_t just vacumm 300 psi inside the hull, i mean,
> by doing this i will have done a very similar thing, there will be a 20
> ATM difference betwen the inside and the outside of the hull, but i can
> do this test in the back yard of my house with a small vacum pump and
> not risking to lose my sub to the sea.... Please those of you that have
> done this test, and have read about doing them let me know what you
> think....Best Regards to all. Daniel
> 
> 
> 
> 
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