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<div class="moz-cite-prefix">On 2015-01-09 18:16,
<a class="moz-txt-link-abbreviated" href="mailto:swaters@waters-ks.com">swaters@waters-ks.com</a> via Personal_Submersibles wrote:<br>
</div>
<blockquote
cite="mid:hbuwxp9wnacwj7jd4kkkcp7i.1420852610049@email.android.com"
type="cite">
<pre wrap="">Sean,
Can I ask you to do one more calc for me? 516 gr 70 sphere, 1" thick, 72" diameter.
The 78" was not within ABS rules at 1000m. I think the 72" might just make it, yet give me more boyancy than the 60"
Thanks,
Scott Waters
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</blockquote>
Not sure where you're going with this. The 60" sphere doesn't even
make it at 1" thickness. A 72" definitely won't.<br>
<br>
72" OD, 1" wall, ASTM A516 Grade 70:<br>
<br>
<img src="cid:part1.08050301.06010005@telus.net" alt=""><br>
<br>
Just out of interest, I checked how small a sphere with 1" thick
hull would need to be to get you to 1000m. Turns out it's about 50
inches:<br>
<br>
<img src="cid:part2.01090903.04040705@telus.net" alt=""><br>
<br>
Sean<br>
<br>
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