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<p>Finally, because I thought you might end up asking for it, here
is the sphere using 1.5" thick HY-100, where 1-13/32" is
considered in the working depth calculation, and the remaining
3/32" is the applied corrosion allowance which does not contribute
to working depth, but does affect the final weight and buoyancy
characteristics. The mean and outer diameter indicators do not
update after the corrosion allowance is applied, but these
dimensions would be 43.5" and 45" respectively. In this
iteration, you need about 770 lbs of supplemental buoyancy, but
you can put her deep in the mud beside Titanic at high tide
without issue.</p>
<p>Sean<br>
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<p><img src="cid:part1.74302103.8172CC86@telus.net" alt=""></p>
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