SUBMARINE ESCAPE TRAINING TANK

I was looking at the Horsea Island site and in the rules i found this



"No diver is to enter any of the blisters situated at various depths in the
tank."


so what are the blisters then ?



David

"david" <im@fedup.com> wrote in message
news:btm37t$q4u$1@sparta.btinternet.com

> I was looking at the Horsea Island site and in the rules i found this
>
>
>
> "No diver is to enter any of the blisters situated at various depths in the
> tank."
>
>
> so what are the blisters then ?
>

This relates to the observation and
'Open air ' blisters in the SETT itself

AFAIK it doesn't relate to Horsea itself rather the SETT
tank at Gosport.

HTH

DaveA




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david wrote:
> I was looking at the Horsea Island site and in the rules i found this
>
> "No diver is to enter any of the blisters situated at various depths
> in the tank."
>
> so what are the blisters then ?

It's the SETT. It has little side pockets built in
which trap what looks like air but is (by reputation)
a good percentage chlorine. They don't use them for
anything and the clorine is in the water to keep it
clean.

nigelH

"david" <im@fedup.com> wrote in message
news:btm37t$q4u$1@sparta.btinternet.com...
> I was looking at the Horsea Island site and in the rules i found this
>
>
>
> "No diver is to enter any of the blisters situated at various depths in
the
> tank."
>
>
> so what are the blisters then ?

Basically, they are airlocks where the SETT can be entered at different
depths. It is a claustrobically small enclosed space on the side. The
submariners do work up training ascents starting at different depths. It is
quite fascinating to think about their frantic exit when making a leisurely
ascent with a safety stop.

Keith

david <im@fedup.com> wrote:
>
> "No diver is to enter any of the blisters situated at various depths in the
> tank."
>
>
> so what are the blisters then ?
>

I don't know for sure but I would assume they are the pressure chambers that the trainees escape from
at different depths.

Nick

> > I was looking at the Horsea Island site and in the rules i found this
> > "No diver is to enter any of the blisters situated at various depths in
the
> > tank."
> > so what are the blisters then ?
> This relates to the observation and
> 'Open air ' blisters in the SETT itself
>
> AFAIK it doesn't relate to Horsea itself rather the SETT
> tank at Gosport.

Basically, they are airlocks where the SETT can be entered at different
depths. It is a claustrobically small enclosed space on the side. The
submariners do work up training ascents starting at different depths. It is
quite fascinating to think about their frantic exit when making a leisurely
ascent with a safety stop.


well thats sound like the answer then. Thanks

<nbown@nospamthanks.ixcg.com> wrote in message
news:3ffe99b2$0$250$fa0fcedb@lovejoy.zen.co.uk...
> david <im@fedup.com> wrote:
> >
> > "No diver is to enter any of the blisters situated at various depths in
the
> > tank."
> >
> >
> > so what are the blisters then ?
> >
>
> I don't know for sure but I would assume they are the pressure chambers
that the trainees escape from
> at different depths.
>
> Nick

Yup! Bin there, seen it, dun it, got the T shirt! Never had to do it for
real though. Thank God!!!!!

Eddie

Eddie


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I've seen a TV submarine documentary which showed the SETT in action, with
trainees leaving the bottom air lock in survival suits, with expanding air
blasting from over pressure valves as they ascended.

Safety divers with the sum total of speedos and pool fins as kit! were waiting
in the blisters breathing in the airspace, as a trainee rocketed upwards the
safety divers nipped out and grabbed them to slow their ascent for a few mtr,
they would nip back to the bubble for for a few breaths before the next trainee
escaped.

Unfortunately they don't allow scuba divers through the air locks, that would
have been a great experience.

Rob Hampton wrote:
> I've seen a TV submarine documentary which showed the SETT in action, with
> trainees leaving the bottom air lock in survival suits, with expanding air
> blasting from over pressure valves as they ascended.
>
> Safety divers with the sum total of speedos and pool fins as kit! were waiting
> in the blisters breathing in the airspace, as a trainee rocketed upwards the
> safety divers nipped out and grabbed them to slow their ascent for a few mtr,
> they would nip back to the bubble for for a few breaths before the next trainee
> escaped.

Wouldn't the support swimmers have got bent?

If they're sat in the airspaces they are breathing air at the ambient
pressure of that depth - and would have hightened ppN2 in their blood -
so presumably they had to have scuba kit on to ascend with deco?

Ben

PS: no reply about the books yet!

--
Ben Panter, Edinburgh
My name (no spaces)@bigfoot which is a com.

> Wouldn't the support swimmers have got bent?
>
> If they're sat in the airspaces they are breathing air at the ambient
> pressure of that depth - and would have hightened ppN2 in their blood -
> so presumably they had to have scuba kit on to ascend with deco?

Aren't the things in the side airlocks, so they'd be able to get out there,
and just slowly depressurise it? Just guessing...

David