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"I think I could get away with the bottles up this high then"
Hi, Joe - I assume you mean scuba tanks or high
volume compressed air tanks (like welding tanks).
When you say "up this high", what do you have in
mind?
Rick
Vancouver
----- Original Message -----
Sent: Wednesday, November 16, 2005 7:23
PM
Subject: [PSUBS-MAILIST] Working
Schematic
Now that was truly nice of you to do, thank you Paul!
These boats do not scale down well. This is an idea drawing (one of
several) just to do some math with. This one is near scale in this view.
Something like what you drew is probably more practical scale wise. I would
like some manner of getting in and out on the bottom.
Yes the glassed marine ply would give me quite a righting moment. I
think I could get away with the bottles up this high then.
As for the rest, well...one thing at a time.
Joe
If this file didn't post, I will try another format. (second try jpg
format)
From: Paul Kreemer
<paulkreemer@gmail.com>
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re:
[PSUBS-MAILIST] Free Flooding Spaces
Date: Wed, 16 Nov
2005 11:09:20 -0800
Joe, I think we need some drawings! I've been following
this
message thread but am not sure the kind of boat you're
after.
Here's a rough layout sketch of a sub that I spent a few minutes
on. It looks maybe a little like a fleet boat, but I didn't
try
to do much with the free flooding spaces (in white). I also
didn't try to apply any scale to it - so it may be way off.
But there's a lot of floodable space here, like you described
earlier. This first sketch of mine has a lot of problems:
usable
viewports, access to and use of free-flooding space, overall size
and
power requirements, lots of stuff.
Regarding your surface buoyancy question, my impression was
always that
you had loads of buoyancy and maybe had issues more with just
getting
it to sink and having adequate propulsion and control with such a
large
amount of free-flooding volume. But hopefully some more
experienced designers can comment.
Paul
Paul & Dan (ref: your reponses below)
I need to cut total interior floodable space by at least half. What
everyone's been telling me has sunk in, the numbers aren't lying.
Myles was correct, it's either a sub or a glass bottom boat.
If one where to consider the free flooding fairing idea more
closely, how do you provide sufficient surface buoyancy for the
structure without running into the same problems all over again?
These WWII boats do not "scale' down well and a short and stubby
"caricature" shape would actually be easier to control. Damn
problems
keep rearing their ugly little heads!
Joe
><< joes_sub.JPG >>
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