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Re: [PSUBS-MAILIST] wooden hull Psub revisited
Ok, please understand this is just a preliminary outline for my idea and not
a completed project by any stretch of the imagination.
Sincerely,
John in Keswick
----- Original Message -----
From: "Carsten Standfuß" <MerlinSub@t-online.de>
To: <personal_submersibles@psubs.org>
Sent: Friday, March 22, 2002 4:17 PM
Subject: Re: [PSUBS-MAILIST] wooden hull Psub revisited
> Hi John,
>
> save the Autocad file as DXF file release 12 and send it to me.
> Do not ZIP it.
> I have a progamm which convert this DXF file to Jpg file size.
> Than I will send the file back to you and you can publish it at:
> John Farrington page under :
> http://www.prismnet.com/~moki/subfiles.html.
>
> You can send it also as Autocad 2000 file and zip compressed.. but than
> I have to send it first to my work re-zip and to convert it to
> DXF release 12.. takes longer..
>
> Carsten
>
>
> John Gaertner schrieb:
> >
> > Eliezer:
> >
> > Right now I only have a three view in AutoCAD 2000. If someone will tell
me
> > how I can post a Jpeg, I can do that for comment.
> >
> > Regards,
> >
> > John in Keswick
> >
> > ----- Original Message -----
> > From: "Eliezer Rodriguez" <eliezer_rodriguez@hotmail.com>
> > To: <personal_submersibles@psubs.org>
> > Sent: Friday, March 22, 2002 11:22 AM
> > Subject: Re: [PSUBS-MAILIST] wooden hull Psub revisited
> >
> > > Hi;
> > >
> > > I find this topic very interesting, as myself was considering the idea
> > > because of both reasons you stated below, "where budget (and
presumably
> > > depth) is limited". I will be very happy to see the picture of it. Can
it
> > be
> > > scanned, Micheal?
> > >
> > > Regards,
> > >
> > >
> > > Eliezer Rodriguez
> > > "The only thing in life to fear is fear itself."
> > >
> > >
> > > >From: Michael Holt <mholt@richmond.edu>
> > > >Reply-To: personal_submersibles@psubs.org
> > > >To: personal_submersibles@psubs.org
> > > >Subject: Re: [PSUBS-MAILIST] wooden hull Psub revisited
> > > >Date: Fri, 22 Mar 2002 11:07:58 -0500
> > > >
> > > > > John Gaertner wrote:
> > > > >
> > > > > I recently rejoin the Psub mail list after a two year break. I
have
> > > > > been looking into the use of wooden "doughnuts" as a means of
building
> > > > > a 1 atm. 100 ft max diving depth psub for personal use. I reviewed
the
> > > > > archives but unfortunately those who commented on it, their email
> > > > > addresses bounced back. So I would like to open the floor up for
> > > > > discussion...
> > > >
> > > >Welcome back, John.
> > > >
> > > >The wooden donut idea goes all the way back to the 60s, with
> > > >Helle Engineering the Submanaut. It's in Busby on page 221
> > > >and on page 250. Busby lists a collapse depth of 2000 feet
> > > >and an operating depth of 200 feet.
> > > >
> > > >Jerry /Stachiew even wrote about it, in Underssea Technology
> > > >magazine (Sept., 1968). I've never read that article.
> > > >Busby's review of the article notes that Stachiw felt plywood
> > > >has a place in submarine hulls where budget (and presumably
> > > >depth) is limited.
> > > >
> > > >I talked with Mr Helle (his first name eludes me right now),
> > > >in about 1989. The boat was out of the water but in good
> > > >condition. His wife wanted to give me the boat, but he
> > > >hesitated (of course it works like that). He said there
> > > >never were any problems with it.
> > > >
> > > >According to Busby, the technique is to cut 4-inch wide
> > > >ring panels from the wood. The rings are glued together
> > > >and the whole is glassed over.
> > > >
> > > >I suspect a problem would arise if the boat were going
> > > >to spend all its life in the water, or if it were cycled
> > > >too often. ne might have to very careful about how
> > > >the boat were launched, because the plywood might crack
> > > >internally if the stress were not evenly distributed as
> > > >it began to float.
> > > >
> > > >
> > > >
> > > >Mike
> > >
> > >
> > > _________________________________________________________________
> > > Get your FREE download of MSN Explorer at
> > http://explorer.msn.com/intl.asp.
> > >
> > >
>