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That's pretty close...I calculated 524 feet with 125psi internal
and suspect you could push it to 600 feet. But that would be the
limit so you'd want to build in a safety factor or risk failure at
depth.<br>
<br>
<br>
On 11/9/2013 12:42 PM, hank pronk wrote:<br>
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<blockquote
cite="mid:1384018944.44618.YahooMailNeo@web120702.mail.ne1.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial,
Lucida Grande, sans-serif;font-size:12pt">
<div><span>Hi Rick,</span></div>
<div><span>I have used 20lb propane tanks for buoyancy. I think
they give 35lb buoyancy and if you pressurize them to 125psi
I am sure they could go to 600 ft. Test one first.</span></div>
<div><span>Hank</span></div>
<div class="yahoo_quoted" style="display: block;"> <br>
<br>
<div style="font-family: HelveticaNeue, Helvetica Neue,
Helvetica, Arial, Lucida Grande, sans-serif; font-size:
12pt;">
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Helvetica, Arial, Lucida Grande, sans-serif; font-size:
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<div dir="ltr"> <font face="Arial" size="2"> On Saturday,
November 9, 2013 10:16:57 AM, Land N Sea
<a class="moz-txt-link-rfc2396E" href="mailto:landnsea1@hawaiiantel.net"><landnsea1@hawaiiantel.net></a> wrote:<br>
</font> </div>
<div class="y_msg_container">
<div id="yiv0711693997">
<div dir="ltr">
<div dir="ltr">
<div style="color: rgb(0, 0, 0); font-family:
"Calibri"; font-size: 12pt;">
<div>Hi David,</div>
<div> </div>
<div>any idea what the two floats provide in
buoyancy?</div>
<div> </div>
<div>Rick</div>
<div style="color: rgb(0, 0, 0); font-family:
"Calibri"; font-size: small;
font-style: normal; font-weight: normal;
text-decoration: none; display: inline;">
<div style="font: 10pt/normal tahoma;
font-size-adjust: none; font-stretch:
normal;">
<div> </div>
<div style="background: rgb(245, 245, 245);">
<div class="yiv0711693997yqt2354972335"
id="yiv0711693997yqtfd29943">
<div><b>From:</b> <a
moz-do-not-send="true"
title="seaquestor@gmail.com"
href="mailto:seaquestor@gmail.com"
target="_blank" rel="nofollow"
shape="rect"
ymailto="mailto:seaquestor@gmail.com">David
Colombo</a> </div>
<div><b>Sent:</b> Friday, November 08,
2013 8:25 PM</div>
<div><b>To:</b> <a
moz-do-not-send="true"
title="personal_submersibles@psubs.org"
href="mailto:personal_submersibles@psubs.org" target="_blank"
rel="nofollow" shape="rect"
ymailto="mailto:personal_submersibles@psubs.org">Personal
Submersibles General Discussion</a>
</div>
<div><b>Subject:</b> Re: [PSUBS-MAILIST]
buoyancy</div>
</div>
</div>
</div>
<div class="yiv0711693997yqt2354972335"
id="yiv0711693997yqtfd42041">
<div> </div>
</div>
</div>
<div class="yiv0711693997yqt2354972335"
id="yiv0711693997yqtfd47073">
<div style="color: rgb(0, 0, 0); font-family:
"Calibri"; font-size: small;
font-style: normal; font-weight: normal;
text-decoration: none; display: inline;">
<div dir="ltr">Hi Rick, here is a quote on
the floats I just got. The 551 float is
$10.80 ea., less 10% per carton of 18.
The 364 float is $6.00 ea., less 10% per
carton of 72. I will be ordering some of
each, but not enough for 18 or 72. </div>
<div dir="ltr">David Colombo</div>
<div class="yiv0711693997gmail_quote">On Nov
7, 2013 12:02 PM, "Smyth, Alec" <<a
moz-do-not-send="true"
href="mailto:Alec.Smyth@covisint.com"
target="_blank" rel="nofollow"
shape="rect"
ymailto="mailto:Alec.Smyth@covisint.com">Alec.Smyth@covisint.com</a>>
wrote:<br clear="none">
<blockquote
class="yiv0711693997gmail_quote"
style="margin: 0px 0px 0px 0.8ex;
padding-left: 1ex; border-left-color:
rgb(204, 204, 204); border-left-width:
1px; border-left-style: solid;">
<div lang="EN-US">
<div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;">Hi Rick,</span></div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;"></span> </div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;">If you need
some cheap buoyancy that will go
to significant depths, I’d
recommend fishing floats you can
get here: <a
moz-do-not-send="true"
href="http://trawlworks.com/floats.htm"
target="_blank" rel="nofollow"
shape="rect"><span
style="color: rgb(31, 73,
125);">http://trawlworks.com/floats.htm</span></a></span></div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;"></span> </div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;">I guarantee
you’ll find uses for them
afterwards, whether it’s as
emergency release buoys, mooring
buoys, or whatever.</span></div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;"></span> </div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;"></span> </div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;">Best,</span></div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 10pt;"><br
clear="none">
Alec</span></div>
<div class="yiv0711693997MsoNormal"><span
style="color: rgb(31, 73, 125);
font-family:
"Calibri",
"sans-serif";
font-size: 11pt;"></span> </div>
<div>
<div style="border-width: 1pt
medium medium; border-style:
solid none none; border-color:
rgb(181, 196, 223) currentColor
currentColor; padding: 3pt 0in
0in;">
<div
class="yiv0711693997MsoNormal"><b><span
style="font-family:
"Tahoma",
"sans-serif";
font-size: 10pt;">From:</span></b><span
style="font-family:
"Tahoma",
"sans-serif";
font-size: 10pt;">
Personal_Submersibles
[mailto:<a
moz-do-not-send="true"
href="mailto:personal_submersibles-bounces@psubs.org"
target="_blank"
rel="nofollow"
shape="rect"
ymailto="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]
<b>On Behalf Of </b>Land N
Sea<br clear="none">
<b>Sent:</b> Thursday,
November 07, 2013 2:18 PM<br
clear="none">
<b>To:</b> <a
moz-do-not-send="true"
href="mailto:personal_submersibles@psubs.org"
target="_blank"
rel="nofollow"
shape="rect"
ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br
clear="none">
<b>Subject:</b>
[PSUBS-MAILIST] buoyancy</span></div>
</div>
</div>
<div class="yiv0711693997MsoNormal"> </div>
<div>
<div>
<div>
<div
class="yiv0711693997MsoNormal"><span
style="font-family:
"Calibri",
"sans-serif";">I
was thinking of testing
both my battery pods to
600’ before I weld them to
the hull so that if there
are any issues with
leakage I would still be
able to get them on a
lathe. I added two vents
per pod with O rings so
that I can push/suck air
across the batteries while
charging so there are a
couple of more places for
leaks to occur. I did the
calks' and they weigh in
at 295 LBS. each dry with
a negative displacement of
around 30 lbs. I was
hoping that they would
barley float with no
batteries in them so that
I could weight them just
slightly negative for ease
of launching and
retrieving but that’s not
the case. I need to come
up with about 30 lbs. of
positive buoyancy and
don’t have any syntactic
foam so I figured I could
strap some 4” X 4”, on
them to achieve that. This
may be a dumb question but
does anyone happen to know
the per foot buoyancy of a
4” X 4” in sea water? If
not I’ll head down to the
ocean and start testing.</span></div>
</div>
<div>
<div
class="yiv0711693997MsoNormal"><span
style="font-family:
"Calibri",
"sans-serif";">I
also mentioned the other
week about my desire to
omit the plate that is
welded to the pressure
hull and battery pod of a
K-350 and was wondering if
any one could comment on
that.</span></div>
</div>
<div>
<div
class="yiv0711693997MsoNormal"><span
style="font-family:
"Calibri",
"sans-serif";"></span> </div>
</div>
<div>
<div
class="yiv0711693997MsoNormal"><span
style="font-family:
"Calibri",
"sans-serif";">Rick</span></div>
</div>
</div>
</div>
</div>
</div>
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