[PSUBS-MAILIST] saftey gear

[James Frankland via Personal_Submersibles]

Hi Hank,

I have a Buddy Pacific ablj which is an older type diving jacket (we used
to call them the "toilet seat").  Emile and Carsten did a load of testing
of escape and decided this was the best compromise.  The jacket is a life
jacket and also had a small air tank, plus regulator so you can breath and
fill the jacket.  There is a manual dump valve for releasing air.

I have done emergency ascents using a similar type of jacket while doing
diving training and although the dump valve is manual, I have found that as
the air in the jacket expands as you ascent rapidly, the air releases from
the dump valve anyway, forcing its way past.  Its not ideal but the jacket
stays intact.

Its one of these.

http://www.thediveforum.com/showthread.php?2660-Dive-Shed-Clearout-(and-no-I-m-not-doing-fundies-yet-)

On 1 July 2015 at 00:29, hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hi Alec,
> Thank you, this has been on my mind lately.  I have the same except for
> the inflatable vest.  I have plenty of room to get the Stinke Hood on but I
> find it very cumbersome.
> Hank
> --------------------------------------------
> On Tue, 6/30/15, Alec Smyth via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>  Subject: Re: [PSUBS-MAILIST] saftey gear
>  To: "Personal Submersibles General Discussion" <
> personal_submersibles at psubs.org>
>  Received: Tuesday, June 30, 2015, 9:03 AM
>
>  Hi
>  Hank,
>  Snoopy has a BIBS,
>  which would be used during cabin flooding. Each crew member
>  wears a compact inflatable jacket that uses a CO2 cartridge
>  and has a Spare Air for a few breaths on the way up.
>  Although the life jackets do not have over-pressure valves
>  like a Steinke hood, the amount of gas in the cartridge is
>  limited and therefore the life jackets should not explode.
>  My understanding is these cartridges have about 800 psi in
>  them, so they should be able to inflate at depth albeit much
>  more slowly than on the surface. I do expect they will reach
>  only a fraction of their normal volume at depth given the
>  amount of gas in the cartridge, so they will provide only a
>  very slow start toward the surface. But the difficulty with
>  the Steinke hoods is getting them on in such a confined
>  space. Maybe in the new sub I could store some spare trawl
>  floats in the cabin (there's more space) for speeding a
>  swimming ascent.
>
>  Best,
>
>  Alec
>
>  On Tue, Jun 30, 2015 at
>  8:07 AM, hank pronk via Personal_Submersibles <
> personal_submersibles at psubs.org>
>  wrote:
>  Alec,
>
>  What type of bailout equipment do you carry.  I have a
>  Steinke Hood but it is a squeeze to get through the hatch
>  with it inflated.
>
>  Hank
>
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