RE: [PSUBS-MAILIST] OSS Pressure Hull

["Warrend Greenway" <dub@linuxmail.org>]

Well then, best of luck Alec! The OSS will still be around when you 
are finished with your present project...And we'll be glad to have
your input!

Warren.

> Yep. Its not that I didn't have a pressure hull design to begin with, its just that I treated it as very much a draft until the other stuff was a known quantity. As I completed components I would weigh them (in one case going so far as to weigh them submerged in a tub of water) and recalculate the hull. At least in my design, weight is the absolutely critical factor. I have a fudge factor of only a few hundred pounds in a boat that weighs 3,000.
> 
> BTW I really would love to volunteer for the hull position but just don't have the time, due to the construction of my own boat. In fact, I don't even have time to keep up with all these posts, and caught Ian's just by chance.
> 
> On the other hand when my sub is complete and proven to work, I do intend to put its design in the public domain, so it will be "open source". But its a poor candidate for THE open source design, as its of very specific applicability and probably not of interest to the general PSUBer.
> 
> rgds,
> 
> Alec
> 
> -----Original Message-----
> From: Ian Roxborough [mailto:irox@ix.netcom.com]
> Sent: Sunday, January 19, 2003 7:04 PM
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] OSS Pressure Hull
> 
> 
> 
> 
> Once you know what all the other systems are going to
> weight and the volume they will displace, you can use
> up the remaining weight allowance on the pressure hull.
> 
> You would still want to know the specs, such an estimate
> of the displacement, basic layout/dimensions, etc..  But
> the actually metal design part, thickness of the steel,
> spacing of the ribs, design of the ribs/frames, the
> end cap style and the placement of the thru-hulls don't
> have to be designed until later on.(?)
> 
> If I remember correctly, Alex Smyth designed this submarine
> this way.
> 
>   Ian.
> 
> 
> On Mon, 20 Jan 2003 07:31:06 +0800
> "Warrend Greenway" <dub@linuxmail.org> wrote:
> 
> > Huh? Why do you suggest that? 
> > 
> > Warren.
> > 
> > > 
> > > I'm wondering what other people think about designing
> > > the pressure-hull after some of the other systems
> > > have been designed, maybe even designing it last?
> > 
> > > 
> > > Ian.
> > > 
> > > 
> > > 
> > > On Mon, 20 Jan 2003 05:07:12 +0800
> > > "Warrend Greenway" <dub@linuxmail.org> wrote:
> > > 
> > > > Is anyone interested in volunteering for the pressure hull design positions?
> > > > We need a Lead of Design, and developers. Once a pressure hull team comes together,
> > > > you can revist the hull concept if you desire, and design the hull anyway that is
> > > > compatible with the weight/cost/depth constraints. If any one is interested, please
> > > > post or e-mail me. I will be posting a supplementary document that will describe
> > > > Lead and Developer opening. 
> > > > 
> > > > Warren. 
> > > > -- 
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