Re: Fw: Re: [PSUBS-MAILIST] Escape Hatch Realities

["Carsten Standfuss" <MerlinSub@t-online.de>]

It its right that some surviors from sunken submarines during WWII
descripe that the hatch open and close again and again very violent by
the escaping air bubbels - one point more for the flood with water
solution. But one air bubble will be left on the ceiling.. Some subs
have a hook which capture the hatch if it goes open to 90 degree.. 

The idear to flood the boat completly - with maybe a addional vale in
the hatch to keep the trapped air bubble out is new for me - and mybe a
good idear to discuss. 

regards Carsten


Jeff Post schrieb:
> 
> Hi All,
> 
> Several people have mentioned increasing the air presure until you can open the
> hatch. It seems to me that it would be much better to flood the cabin, open the
> hatch and swim out. By increasing the presure and then opening the hatch it
> seems two things could happen, either the first air escaping the hatch lowers
> the air presure and the hatch slams back shut, or alternately you get killed by
> the turbulant mixing forces of the in rushing water and the out rushing air.
> 
> JP