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Re: Special for Walter M
Posted by: Garth ()
Date: January 17, 2002 01:36PM

<HTML>Dear Walter,

There was no such thing as a main flooding tank in a u-boat. The main Ballast tanks are open to the sea at the bottom, and are flooded by opening valves at the top, letting the air escape while water comes in. Auxiliary ballast tanks were only used to balance the submarine's specific gravity with regard to the surrounding water, and had no part at all in the process of diving from the surface or surfacing from below.

As for Parade's comment about a little air in the main tanks, they would not stand the pressure of even a shallow dive if there was air in them, which is why main vent valves are only closed as the sub passes thirty meters on the way down!

I hope this clarifies the matter a bit

Best regards,

Garth</HTML>

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Subject Written By Posted
Crash dive Attila Sipos 01/13/2002 08:18AM
Re: Crash dive? Joe Brennan 01/14/2002 05:59AM
Re: Crash dive? walter M 01/14/2002 02:24PM
Re: Crash dive? kurt 01/14/2002 05:15PM
Re: Crash dive? Parade 01/14/2002 08:41PM
Re: Crash dive? J.T. McDaniel 01/14/2002 11:30PM
Re: Crash dive? Parade 01/15/2002 10:30PM
Re: Crash dive? Joe Brennan 01/15/2002 07:46AM
Re: Crash dive? Parade 01/15/2002 10:25PM
Re: Crash dive? Joe Brennan 01/16/2002 06:57AM
Re: Crash dive? walter M 01/16/2002 01:16PM
Re: Crash dive? Leif... 01/17/2002 05:12PM
oops, my post above was ment to be under Garths po Leif... 01/17/2002 05:15PM
Re: Special for Walter M Garth 01/17/2002 01:36PM


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