Re: [PSUBS-MAILIST] ambient pressure submersible

["Rick and Marcia" <empiricus@telus.net>]

Salut Pierre . . . ca va bien?

Some questions:

What kind of dry ambient - any pics?  Partial dry or complete dry?  How are
you compensating the cockpit?

What kind of LP valves are you using to admit compensatiing air into the
cockpit?  I plan on installing used (read: cheap) second stage regs in a
manifold.  I could buy a commercial valve but [a] several regs create
built-in redundancy  [b] the inflow of air will be quieter due to the LP air
being spread out through several regs rather than screaming through one
orifice.

Anyone else have comments?

Rick Lucertini
Vancouver, Canada


----- Original Message -----
From: "Marie-Andrée et Pierre" <poulin.carrier@videotron.ca>
To: <personal_submersibles@psubs.org>
Sent: Thursday, January 06, 2005 4:04 AM
Subject: Re: [PSUBS-MAILIST] ambient pressure submersible


> Hi Simon,
>
> I'm building a dry-ambient sub. If you need help, let me know. I can try
to
> help you.
> But I'm no expert since my boat is not tested yet.
>
> Are you planing to build a dry or a wet ambient sub?
>
> Pierre Poulin
> Québec Canada
>
> ----- Original Message -----
> From: "SIMON WALKDEN" <mrsym0r@gmail.com>
> To: <Personal_Submersibles@psubs.org>
> Sent: Tuesday, December 21, 2004 11:15 PM
> Subject: [PSUBS-MAILIST] ambient pressure submersible
>
>
> > After much internet surfing, deliberation and consideration, I've
> > decided to build a dry ambient submersible. I've begun sourcing local
> > suppliers for custom acrylic windows and domes, steel fabricators &
> > welders, marine batteries and motors, etc; and ordered a copy of the
> > plans for the Delta Wing Submarine ( http://www.scubatow.com/Sub.html
> > ) for ideas pertaining to ambient pressure design, controls etc.
> >
> > Has anybody here built this particular model, or variant thereof? Has
> > anybody here had any experience with the design and construction of
> > ambient pressure submersibles?
> >
> > Should I use steel for hull construction, or fibreglass? (the guys at
> > www.ivccorp.com evidently use fibreglass, but a rather complex blend).
> >
> > How do you keep the entry hatches secured in an ambient pressure
> > submarine? I understand it's quite simple with a 1-atm sub, when
> > you've got an awful lot of external pressure, however if the internal
> > pressure is equal to the external pressure as is the case with an
> > ambient design, then as I understand, this will no longer be
> > applicable.
> >
> > I've also been wondering, has anybody used a 'scuba scooter' (
> > http://shop.divebooty.com/1624.html ) for submarine propulsion before?
> > Diver propulsion vehicles like this seem to be perfect for this
> > application,  as they're DC powered, and already designed to be
> > operated in a submerged environment.
> >
> >
> >
> > ************************************************************************
> > ************************************************************************
> > ************************************************************************
> > The personal submersibles mailing list complies with the US Federal
> > CAN-SPAM Act of 2003.  Your email address appears in our database
> > because either you, or someone you know, requested you receive messages
> > from our organization.
> >
> > If you want to be removed from this mailing list simply click on the
> > link below or send a blank email message to:
> > removeme-personal_submersibles@psubs.org
> >
> > Removal of your email address from this mailing list occurs by an
> > automated process and should be complete within five minutes of
> > our server receiving your request.
> >
> > PSUBS.ORG
> > PO Box 311
> > Weare, NH  03281
> > 603-529-1100
> > ************************************************************************
> > ************************************************************************
> > ************************************************************************
> >
>
>
>
>
> ************************************************************************
> ************************************************************************
> ************************************************************************
> The personal submersibles mailing list complies with the US Federal
> CAN-SPAM Act of 2003.  Your email address appears in our database
> because either you, or someone you know, requested you receive messages
> from our organization.
>
> If you want to be removed from this mailing list simply click on the
> link below or send a blank email message to:
> removeme-personal_submersibles@psubs.org
>
> Removal of your email address from this mailing list occurs by an
> automated process and should be complete within five minutes of
> our server receiving your request.
>
> PSUBS.ORG
> PO Box 311
> Weare, NH  03281
> 603-529-1100
> ************************************************************************
> ************************************************************************
> ************************************************************************
>
>




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 311
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************