<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font class="Apple-style-span" size="3">The wood will compress and take on water. Forget that. Get some trawl floats. Nokalons should be available up in your neck of the woods. And you can always use them later.</font>
<div><font class="Apple-style-span" size="3">Vance<br>
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<div style="font-family: helvetica, arial; font-size: 10pt; color: black; ">-----Original Message-----<br>
From: Land N Sea <landnsea1@hawaiiantel.net><br>
To: personal_submersibles <personal_submersibles@psubs.org><br>
Sent: Thu, Nov 7, 2013 2:19 pm<br>
Subject: [PSUBS-MAILIST] buoyancy<br>
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<div>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.</div>
<div>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.</div>
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<div>Rick</div>
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