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Re: [PSUBS-MAILIST] Under water lighting: Q for Ron Leonard
----- Original Message -----
From: "Captain Nemo" <vulcania@hawaii.rr.com>
To: <personal_submersibles@psubs.org>
Sent: Thursday, May 16, 2002 2:56 PM
Subject: Re: [PSUBS-MAILIST] Under water lighting: Q for Ron Leonard
>
> ----- Original Message -----
> From: "ronleonard" <ronleonard@shaw.ca>
>
>
> > With an ambient sub, you won't get water leaking in, rather air leaking
> > out. Not a problem so long is it isn't too much of a leak.
> > Ron
>
> Hi Ron,
>
> Been a while. Trust you're doing well.
>
> If I understand correctly, Greg wants to turn a modified SPORTSUB hull
(used
> on the surface as a movie prop) into a diving closed-compartment ambient
> sub.
>
> Exactly how tall is a SPORTSUB hull?
>
> And considering the pressure differential low / high within the sub (I.e.,
> since the internal pressure needs to be great enough to push the water out
> the bottom of the sub, it will therefore greater than the external
pressure
> at the roof) , what do you think about the potential integrity of his roof
> hatch (which won't have water pressure forcing it shut): easy to leak air
if
> not well made and tightly torqued down on the seal?
>
> SPORTSUBS work really well as they were intended to work. Generally, what
> do you think of modifying them into closed ambients, especially with a
roof
> hatch?
>
> I see a lot of potential buoyancy there. The hull and components are
light
> in comparison to a steel dry sub, so it looks like a lot of hard
structural
> ballast will have to be added on. Any suggestions on how to attach that
to
> a fiberglass hull so as to minimize the possibility of it tearing loose?
>
> VBR,
>
> Pat
>
>
>
Ron, It sounds to me like Greg needs to hear your " upsidedown garbage can
on a fence post " story!!!
Steve