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Re: [PSUBS-MAILIST] concrete submarine



In any way this is a brand new idear.. 

..a wet 1 atm boat. You have just to open a small 
vale - the pressure inside increase to ambinet and you can go out. 
Later you pump some water out and the pressure reduce to 1 atm. 
But maybe this depresure process has to be very carefully.. 

 I understand that right ? carsten

Michael Edwards schrieb:
> 
> Hello Wilfried:
> 
> I do want to pressurize this hull, only with water in it. Less weight to sink
> the boat is less weight to pull on a trailer.
>