[PSUBS-MAILIST] Hull Calc: 78" spheres

Fri Jan 9 21:24:37 EST 2015

I never thought to add the functionality to solve for diameter. I'll have to look into that.

I'll run your calc. Stay tuned.

Sean

On January 9, 2015 6:16:50 PM MST, "swaters at waters-ks.com via Personal_Submersibles" <personal_submersibles at psubs.org> wrote:
>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
>
>
>Sent from my U.S. Cellular® Smartphone
>
>
>-------- Original message --------
>From: "Sean T. Stevenson via Personal_Submersibles"
><personal_submersibles at psubs.org> 
>Date:01/08/2015  8:28 PM  (GMT-06:00) 
>To: Personal Submersibles General Discussion
><personal_submersibles at psubs.org> 
>Subject: Re: [PSUBS-MAILIST] Hull Calc:  78" spheres 
>
>On 2015-01-08 19:01, via Personal_Submersibles wrote:
>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?
>Vance
>
>As requested:
>
>ASTM A516 Grade 70, 78" sphere, 0.75" wall:
>
>
>
>ASTM A516 Grade 70, 78" sphere, 1" wall:
>
>
>HY-100, 78" sphere, 0.75" wall:
>
>
>HY-100, 78" sphere, 1" wall:
>
>
>Sean
>
>
>
>------------------------------------------------------------------------
>
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