Re: [PSUBS-MAILIST] ambient sub - brent shaw

["Thijs Struijs" <thijs-struijs@planet.nl>]

Brent,

I think your idea can work. When you run out of air (while surrounded by big
sharks) you might not notice this. In a wet ambient sub you are in immediate
danger but in yours you have some time to respond. If I were you I would
design some sort of alarmsystem that warns you when any pressuredifference
occurs between the internal of the sub and the water. As your sub isn't
designed for pressure differences it might implode without warning. Maybe an
alarm that triggers the ballast-release?

Greetings,

Thijs Struijs



----- Original Message -----
From: "Brent Shaw" <drydivenz@yahoo.com>
To: <personal_submersibles@psubs.org>
Sent: Sunday, March 17, 2002 11:02 PM
Subject: [PSUBS-MAILIST] ambient sub - brent shaw


> Thijs
>
> I agree with your ambient theory for a wet or semi wet
> ambient design but for a dry ambient  design
> displacement doesn't change.
> At depth if the pressure in the cabin decrease (out of
> air situation) below the outside water pressure the
> hull can implode but bouyancy doesn't change. (sealed
> upside down bucket not an open upside down bucket  as
> you put it)
> If the hull implodes/repturers bouyancy  certainly
> changes and you crash.
>
> from the clear waters of New Zealand
>
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