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Benny,
I built a K-350. It has the standard K type
pressure hull of 36 inches OD with internal stiffeners. Granted, it would
be nice to have a clean hull inside but I think it's more important to have a
smooth outside, where corrosion is more of a problem. Also, the stiffeners
are great mounting points for things inside. Most of my internal
components are placed between the frames so it is usable space. And
when I wanted to add a few things inside after the hull was painted, I fashioned
clamps to clamp to the frames and hold the additions with no welding.
You'll probably be adding and rearranging your internal components far more then
anything external.
Internal framing looks cleaner
too.
Just my opinion,
Dan H.
----- Original Message -----
Sent: Sunday, May 09, 2010 2:03 AM
Subject: Re: [PSUBS-MAILIST] pressure
hull sizing
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Those are good points you bring up, Cliff... I was planning
on the internal stiffeners but, now that you mention it, external ones
would leave more usable space inside for other components. The
stiffening rings would also create natural separations planes for
ballast tanks, mounting points for other hull hardware and a buffer to
the actual pressure hull.
Looks like the SF-2/B will become the 2/C shortly...LOL
---
On Sat, 5/8/10, Cliff Redus
<cliffordredus@sbcglobal.net> wrote:
From:
Cliff Redus <cliffordredus@sbcglobal.net>
Subject: Re:
[PSUBS-MAILIST] pressure hull sizing
To:
personal_submersibles@psubs.org
Date: Saturday, May 8, 2010, 12:53
PM
Ben
Sorry for the delay. I have been busy of late in
the real world. My boat pressure hull is 30". As
I was going for a low drag profile, this has worked fine.
If I had to do it again with the same design objectives, I
would again use a 30" hull but would have external
stiffeners, not internal to give more room and make maintenance
easier.
Cliff
From: "Fritz, Benjamin T
AT1 CNATTU, JACKSONVILLE" <benjamin.fritz@navy.mil>
To:
personal_submersibles@psubs.org
Sent: Thu, May 6, 2010 12:09:14
PM
Subject:
[PSUBS-MAILIST] pressure hull sizing
Hey guys,
I
was looking at my designs for my sub and noticed that the interior
size is lacking in open volume when all the internals are
installed. Right now its all theoretical placement using the
dimensions of the components. My hull diameter is planned at
30", at this point I don't think it will be enough...
Of the
members of the K-Sub mafia, what size hull is more common for
construction? Cliff, what size hull did you use for the
R-300?
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