Re: [PSUBS-MAILIST] RE:

[Ray Keefer <Ray.Keefer@Sun.COM>]

Hi Mike,

Instead of relying on what we "think". Please test it unmanned to at least
150 feet. That way you will "know" it will survive operating around 
75 feet and has a 1:2 safety ratio. Lower it down to 150 and leave it there
for three hours. If interior is still dry take a close look at the hull.
Any dents? Distortion? Warpage?

Regards,
Ray

> From: Bob Decker <bdecker@gci.com>
> To: "'personal_submersibles@psubs.org'" <personal_submersibles@psubs.org>
> Subject: [PSUBS-MAILIST] RE: 
> Date: Wed, 4 Sep 2002 09:18:17 -0800 
> 
> Mike
>  
> I think that should be strong enough for 75 to 100 feet. The sub I'm working
> on uses 3/8 thick steel with a working depth of 250 ft and crush around 700
> ft. If you keep to the depth your talking about you should be fine. To
> simplify the depth gauge issue attach a divers depth gauge outside your
> viewport. 
>  
> If you need any more ideas. Let me know.
>  
> bob decker
> bdecker@gci.com
> 
> -----Original Message-----
> From: majerus@iowatelecom.net [mailto:majerus@iowatelecom.net]
> Sent: Monday, September 02, 2002 7:39 PM
> To: Personal_Submersibles@psubs.org
> Subject: 
> 
> 
>     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
>  
>