<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font size="3" style="color: black; font-family: Arial, Helvetica, sans-serif;">Sean,</font>
<div><font size="3"><font face="Arial, Helvetica, sans-serif">Thanks for that. 19 mm is .75"(ish). That suggests Leo must have been an inch thick or maybe the classic thickness hull for a Pisces, which was 1.1". The extra 5-6 mm would probably have supplied sufficient strength for 600 meters service.</font></font></div>
<div><font size="3"><font face="Arial, Helvetica, sans-serif">Vance<br>
</font></font><br>
<br>
<div style="color: black; font-family: helvetica, arial; font-size: 10pt;">-----Original Message-----<br>
From: Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Thu, Jan 8, 2015 9:28 pm<br>
Subject: Re: [PSUBS-MAILIST] Hull Calc: 78" spheres<br>
<br>
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<div class="moz-cite-prefix">On 2015-01-08 19:01, via
Personal_Submersibles wrote:<br>
</div>
<blockquote type="cite"><font color="black" face="Arial, Helvetica, sans-serif" size="3"><font style="color: black; font-family: Arial, Helvetica, sans-serif;" size="3">That's what I got.
Only without the format. Sweet. Thanks Sean. It's going to
take a syntactic buoyancy package to get it right, but it
looks like a decent alternative. A 6 1/2 foot sphere displaces
about a thousand pounds more than the pair of 5 footers.
Pretty close, and might be marginally less expensive. What
would a 39" radius do for depth in the thicknesses you have
already given?</font>
<div style="color: black; font-family: Arial, Helvetica, sans-serif;"><font size="3">Vance</font><br>
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</font></blockquote>
<br>
<font size="3"><font face="Arial, Helvetica, sans-serif">As
requested:<br>
<br>
ASTM A516 Grade 70, 78" sphere, 0.75" wall:<br>
</font></font><br>
<img src="cid:part1.02090709.05060604@telus.net" alt=""><br>
<br>
ASTM A516 Grade 70, 78" sphere, 1" wall:<br>
<img src="cid:part2.06030108.09010007@telus.net" alt=""><br>
<br>
<font size="3"><font face="Arial, Helvetica, sans-serif">HY-100, 78"
sphere, 0.75" wall:</font></font><br>
<img src="cid:part3.03080604.06060700@telus.net" alt=""><br>
<br>
HY-100, 78" sphere, 1" wall:<br>
<img src="cid:part4.04020801.06000500@telus.net" alt=""><br>
<br>
Sean<br>
<br>
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