Re: [PSUBS-MAILIST] 200ton 18meter Live aboard submarine

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

Hi Frank,

feel free to ask away, I'll do my best to answer everybodies questions,
issues and ideas.

For questions the hull's construction, I should defer these questions to
Wilfried, since he's the guy making the hull.  I will say, the thickest
point of the hull is around 350mm.  I don't think there is any need to
use stainless re-bar (since the re-bar won't be exposed to the elements).

Wilfried has constructed several concrete submarines before building
his 20tons 9meter submarine.  We don't have plans to structurally test
mock ups of the hull for this project, just create a scaled up version
of Wil's successful 20tons submarine.

Cheers,
  Ian.

-----Original Message-----
>From: ShellyDalg@aol.com
>Sent: Dec 28, 2007 4:49 PM
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] 200ton 18meter Live aboard submarine
>
>Hello Ian.If you don't mind me asking, how thick is the hull ? Are there  
>internal rings of concrete or steel ?
>Is there reinforcing wire like a ferrous cement sailboat or just the  re-bar.
>Would it make sense to use stainless re-bar ? I would think retaining rings  
>of stainless would be easily cast into the concrete hull, with anchor points  
>welded so that they were embedded in the concrete and connected to the re-bar, 
> but Wil is the expert on this. If 30 meter or 90 feet is your average depth, 
>and  you tested it to 90 meters, what are the pressure cycles like as it 
>pertains to  number of cycles before failure. It's one thing to make a structure 
>from  concrete and send it down and leave it, but repeated cycles are a 
>different  thing. Will you be doing any testing with mock-ups before you start the 
>real  thing ?
>Sorry if I'm being too nosy, but the whole project just sounds so damn  
>interesting. I know all the guys will be following this build very closely, and  
>again, I wish you all the luck. Frank D.
>
>
>
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