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Re: [PSUBS-MAILIST] Viewport design question
rob
rectangular ports are not used due to stress concentration at the
corners. the certified shapes are rounds, domes, cylinders and beveled
rounds. we dont make square subs why make square windows.
rick m
----- Original Message -----
From: "Rob Ossian" <rob_neptune@yahoo.com>
To: <personal_submersibles@psubs.org>
Sent: Monday, March 06, 2006 12:50 PM
Subject: [PSUBS-MAILIST] Viewport design question
I have noticed in my research that the most common
design for a submersible viewport is the traditional
circular cut design. I can only imagine that this is
due to the wealth of documented testing associated
with this design, but I am curious about alternate
viewport designs used 1 atm sub designs. Does anyone
have any knowledge of alternate designs/shapes that
have either been successful (or have failed)?
Just some examples I know of:
- The hemispheric dome on many subs (SGT Pepper,
Flyer, Newt sub domes, etc)
- The elliptical dome on Hawke's Deep flight 1
Of specific interest to me are rectangular shaped
viewports - Does anyone know of any in use on 1 atm
subs out there?
Thanks,
Rob
--- Joseph Perkel <joeperkel@hotmail.com> wrote:
---------------------------------
Rick,
I believe you missed the "sale" price......free!
Download the trial version and be stingy with how many
files you save. You get 25 before it quits but, the
program does remain fully functional...calculations
and all!
Joe
---------------------------------
From: "Rick and Marcia" <empiricus@telus.net>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST] Free Surfaces solution!
Date: Sun, 5 Mar 2006 23:59:12 -0800
Thanks. Took one look at the price tag and . . .
I'll stick with cardboard and glue :-)
Rick L
----- Original Message -----
From: Joseph Perkel
To: personal_submersibles@psubs.org
Sent: Saturday, March 04, 2006 5:14 AM
Subject: Re: [PSUBS-MAILIST] Free Surfaces solution!
Hi Rick,
Good to hear from you!
I first asked the group for CAD sources back in
November,so since then. I ended up using Rhino and I
am quite happy with it. I still have a long way to go
though.
Here is the link http://www.rhino3d.com/
Joe
---------------------------------
From: "Rick and Marcia" <empiricus@telus.net>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST] Free Surfaces solution!
Date: Sat, 4 Mar 2006 00:39:10 -0800
Hi, Joe - I've been checking out your sub CADs. What
program are you using & how hard was it to learn? The
drawings are fantastic. I'm inclined to keep working
on my model and to avoid CADs at all costs, but, your
pics are proof of something working . . .
Rick L
----- Original Message -----
From: Joseph Perkel
To: personal_submersibles@psubs.org
Sent: Thursday, March 02, 2006 9:08 AM
Subject: [PSUBS-MAILIST] Free Surfaces solution!
I really did not want to seal off the soft tanks
completely in my ambient design to keep the "free
surfaces" in check. I found the solenoid flood valves
unnecessarily complex for my application, plus the
issue of access and maintenance.
This is truly bizarre and a testament to the function
of this list. Not to encourage off topic discussions
but...
The rocket discussion made me think about the
pyrotechnics of solid rocket motors, which made me
think of flares, which made me think of the time years
ago, Freddy got drunk and set his sail cover on fire
one July 4th with a hand flare.
That boat had a centerboard trunk!!
Hmmm, centerboard trunk!!....led me to this solution
in five minutes!
http://www.frappr.com/?a=viewphoto&id=269116&pid=1473286
You guys are just bursting with design ideas!!! :)
Thanks
Joe
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603-529-1100
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The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003. Your email address appears in our database
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from our organization.
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Removal of your email address from this mailing list occurs by an
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603-529-1100
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