[PSUBS-MAILIST] FW: Escape with Steinke Hoods.

Fri Jan 16 10:33:00 EST 2015

 "SEIE suits to simulate an escape from the Swedish submarine
Vastergotland, down 115 feet off the coast of Denmark. .. and nine
seconds required for the ascent. " 

Means around 13 feet  per second. euqal to 4 m per sec in a Full suit.
Assume Steinke hoods will be simillar. 

Means 200 meter in 50 second. Take a big breath if you get out and than
breath out all the time.. 
No gas gets into your body during the time to get to the surface. No
Need for helium. 
The surfaceing time is to short to get decomprssion thickness - but read
the Pachoa Report again - you can learn a lot from that.
 The as scuba diver escaping crewman died after surfacing because they
stay one and a half hour in the 
chamber under pressure.. in just 40 m deep or so. 

On a german submarine in World war one a crewman escape after a day from
32m deep wreck without problems.
And without any gear. The guy from the Nekton escape from 80 meter after
a window breaks even without a gear. 
I make  a emergency surfacing from 24 meter as subadiver as my
rebreather stops working because of a broken valve. 

vbr Carsten

Another question is do you need to decompress if using Helium mix in the
short time it takes to get to the surface?   How fast is the ascent in
metres per second with the Steinke flotation.  Hugh

From: Personal_Submersibles
[mailto:personal_submersibles-bounces at psubs.org] On Behalf Of "Carsten
Standfuß" via Personal_Submersibles
Sent: Friday, 16 January 2015 9:05 a.m.
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] FW: Escape with Steinke Hoods.

The Steinke hood can be use with air, ever in greater deep the time to
the surface will be very short. More serious is the flooding time of the
submarine. 

If you need 20 Minutes to flood the submarine in 100 meter deep (300
feet) it do not matter any more which gas you have in the hood for 1-2
minutes. 
You will get decompression illness or dead anyway. 

The compression time in the submarine has to be short as possible.
A big flood valve help. Releaseing the rest of you gas from the
boats-bottles at the end of the flooding time into your flood
cpompartment to equalize the pressure help also. 

One drawback of the Steinke Hood is that it is even as expirence
sportdiver nearly impossible to stop the unit at 9 or 6 or 3 m deep for
a decompression stop. 

http://en.wikipedia.org/wiki/BAP_Pacocha_%28SS-48%29

another from the internet: 
Exercise Sorbet Royal
A NATO exercise, Sorbet Royal in May 2002 (Cohen 2003), demonstrated the
effectiveness of the system when four crewmembers and five others from
Denmark, the UK and USA, both men and women, donned SEIE suits to
simulate an escape from the Swedish submarine Vastergotland, down 115
feet off the coast of Denmark. The submarine’s escape tower had a four
to six minutes recycle time, (determined chiefly the time it takes to
drain the flooded tower) but they used a 15-minute interval for this
demonstration. The exercise worked as briefed, with 18 seconds required
for the pressure equalisation phase, the pressure doubling roughly every
four seconds or so, and nine seconds required for the ascent. Rescue
units, including a decompression chamber, were waiting in smooth seas on
the surface.

Vbr Carsten 

"Hugh Fulton via Personal_Submersibles"
<personal_submersibles at psubs.org> schrieb:
> Hi Hank, Comsub has no flood valves and I was going to put one in but would
> have to weld through the hull.
> My concern is that the effects of narcosis at that depth will be fairly
> severe and that a mixed gas might prevent that and allow clearer thinking.
> Hugh
> 
> 
> -----Original Message-----
> From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
> On Behalf Of hank pronk via Personal_Submersibles
> Sent: Friday, 16 January 2015 2:02 a.m.
> To: Personal Submersibles General Discussion
> Subject: Re: [PSUBS-MAILIST] FW: Escape with Steinke Hoods.
> 
> Hugh,
> My understanding is, use regular tank air because your bottom time is so
> short. One of the members posted an allowable time chart for flooding. I
> think it is something like 1min 30 sec for 400 feet.
> Does Com Sub have a flood valve, Gamma never did until I put one in.
> Hank
> --------------------------------------------
> On Wed, 1/14/15, Hugh Fulton via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
> 
> Subject: [PSUBS-MAILIST] FW: Escape with Steinke Hoods.
> To: "'Personal Submersibles General Discussion'"
> <personal_submersibles at psubs.org>
> Received: Wednesday, January 14, 2015, 10:51 PM
> 
> 
> 
> 
>  
>  Hi Guys,My two
> Steinke hoods turned up. Made in USA 1982. Still in good condition.  I 
> have looked at the escape training video which was great. Questions.  It is
> obvious you need a fill hose for the initial fill at depth prior to
> opening the hatch.  i.e. if you are at 10 atmospheres depth then you need
> to fill it with 10 atmospheres (bar) pressurised air. 1. How many of you
> are adding a Steinke fill hose with an Aro coupling for this purpose.  2.
> Breathing this will give you narcosis.  So is it better to have 2 bottles
> of mixed gas for this purpose? One for 8-15 bar depth escapes and one for
> 16-25 bar depth escapes.  Air could be used up to 8 bar.3. What are the
> mixes recommended for these depths to prevent narcosis as it could take 5
> minutes to pressurise and escape. Chs Hugh.
> 
> 
> 
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