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RE: [PSUBS-MAILIST] OSS spec sheet
I think 2m is way too large, but perhaps 1m is a bit too small. I like
the idea that I can turn around in the hull and access every internal
area in reasonable comfort. Lots of work gets done in there, and if
there is an emergency while submerged, I want room to move and work.
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Carsten
Standfuss
Sent: Wednesday, January 15, 2003 10:25 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] OSS spec sheet
Hi Warrend
A cylinder with a diameter of 1 meter and with a length of 1 meter means
a displacement of 0,805 ts in saltwater..
A diameter of 2 meter with a length of 1 meter means
a displacement of 3,22 ts in saltwater..
Each person needs about 1 meter length - so a double seater needs
2 meters between the endcaps.. = 6,44 ts the overall sub will be more
in the area of 8-9 ts.. keep most homebuilders off..
I think 0,9 - 1 meter diameter - or the weight will be a
problem for the most cars and even pickups.
I put a picture of a bolted frame and a explain
how to make it to :
http://www.prismnet.com/~moki/subfiles
or direct:
http://www.prismnet.com/~moki/20030115.120916/113-1333a.JPG
and here :
http://www.prismnet.com/~moki/20030115.120916/113-1333a.desc
Bolted midgets:
Seahorse, all X-crafts, Aluminaut, all japanese midget, Seehund,
some italian modern midget - technical no problem, just a price issue..
regards Carsten
Warrend Greenway schrieb:
>
> The issue of beam seems to be causing a lot of concern. I want to be
> able to sit upright in the hull. I'm not interested in crouching or
> being balled-up in any way. Furthermore, 1.5-2.5 meters was the
> unanimous response. It would seem, however, that there are a lot of
> second thoughts on this. I am going to try laying out some stuff in my
> living room to get a better idea of scale. I think this is the first
> order of buisiness at this time. Please, all, make a mock up with
> sticks, cardboard, or whatever, and get a solid understanding of a
> realistic size. It is starting to sound like the 1.5 meters may have
> been closer to the target. Remember, though, that the modularity will
> allow the basic sub to be quite short, eliminating some cost/weight
> concerns.
>
> Warren.
>
> >
> > Any special tools that we need should be factored in
> > to the overall cost. This would include the method of transporting
> > it to and from the dive site. If 'we' are planning to build a
> > submarine of the size people are talking about then you will
> > probably need either a crane or strong forklift truck for lifting
> > parts and section into place.
> >
> > Although, it might be more econimical to get a vehicle
> > such as a flat bed truck with a built on crane:
> > http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=67
> > 29&item=2400013033
> >
> > The specs being kicked around sounds more like the size of a 4 to 6+
> > person sub, with room to stand up. I've got say I would love to
> > have a sub like that, but I'm not sure how relistic it is to solve
> > all the logistical problems for constructing such a vessel by a
> > private individual. In fact I think hardly any one would beable to
> > finance and construct such a vessel, more so since this is intended
> > as a 'first submarine'. 1 meter is a more realistic hull
> > diameter... your second sub could be 2 meters....
> >
> > Ian.
> >
> > On Thu, 16 Jan 2003 00:08:05 +0800
> > "Warrend Greenway" <dub@linuxmail.org> wrote:
> >
> > > If this bolt together systems works out then Carsten's idea of
> > > uneven lengths becomes perfect. We would have around a 4 meter
> > > "main" section with the conning tower. Then you could either bolt
> > > on end-cap sections or extensions to the hull, either way you get
> > > exactly the length you want. It would be nice if towing behind an
> > > SUV wasn't a concern, but it is. I would get a Dodge and have
> > > 10,000lbs towing capacity, but that is not going to be a popular
> > > solution. "By a real truck for your PSUB!" Right.
> > >
> > > Warren.
> > >
> > > > The wish list looks like it's coming along well. I like the
> > > > "Required " list especially, but I think the size is getting a
> > > > little large for something that will actually get built?
> > > >
> > > > Maybe one of the first things that should be considered is, are
> > > > we looking to design a sub that can be trailered behind a
> > > > standard sized SUV or pickup truck, or one that requires more to
> > > > move it. Establish the displacement constraints rather then the
> > > > details.
> > > >
> > > > Establishing a realistic budget may do well early on too. It's
> > > > probably the main reason there aren't a flood of Psubs in the
> > > > water already. Keep in mind, every square center meter of volume
> > > > adds to both cost and weight.
> > > >
> > > > My hat is off to Carstan for the project he has taken on, but
> > > > reality is, I know he's way out of my league.
> > > >
> > > > Dan H.
> > > >
> > > > ----- Original Message -----
> > > > From: "Coalbunny" <coalbunny@vcn.com>
> > > > To: <personal_submersibles@psubs.org>
> > > > Sent: Wednesday, January 15, 2003 7:40 AM
> > > > Subject: Re: [PSUBS-MAILIST] OSS spec sheet
> > > >
> > > >
> > > > > I don't know what value this would be to the PSUB project, but
> > > > > this is what I have so far-
> > > > >
> > > > > 1. Length: "Around" 10 meters
> > > > > 2. Beam: 2-2.5 meters
> > > > > 3. Speed: unknown
> > > > > 4. Depth: 50 meters
> > > > > 5. Duration: 24 hours
> > > > > 6. Cost: unknown
> > > > > 7. Capacity: 3-4 passengers
> > > > > 8. Other: Optional electronics package
> > > > > Life support system
> > > > > Optional bow view port
> > > > > Optional fiberglass fairings
> > > > > Required analog/mechanical gauges
> > > > > Required auxillary electrical
> > > > > Required steel pressure hull
> > > > > Required drop ballast
> > > > > Required "trimable" ballast
> > > > > Required PWM speed control(?)
> > > > >
> > > > > I'm not really certain what the specs would be for speed. Carl
> > > > >
> > > > > --
> > > > > "You delight not in a city's seven or seventy wonders, but in
> > > > > an answer it gives to a question of yours, or the question it
> > > > > asks you, forcing you to answer, like Thebes through the mouth
> > > > > of the Sphinx." -- Kublai Khan
> > > > >
> > > >
> > > >
> > >
> > > --
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