[PSUBS-MAILIST] HY-100 full sphere, 42" ID, 1.40625" shell thickness + 3/32" corrosion allowance (1.5" total)

[hank pronk via Personal_Submersibles]

Thank you Sean,Good to know it can dive even at high tide ;-)  Now I can find out  if it is more cost effective to use HY-100 and less foam or 516-70 and lots of foam.Hank 

    On Monday, July 17, 2017 8:42 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

   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. Sean
  
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