[PSUBS-MAILIST] Tank Calculator

[Jon Wallace via Personal_Submersibles]

James,
No, not the total height of the tank head.  The "skirt" is the part of the tank head that DOES NOT contribute to the elliptical geometry.  It is spherical and an attachment point for the tank head.  Most tank heads in the US have a two inch skirt but you can specify shorter or longer.  See attached images...the skirt is the red in second image.
Jon
 


     On Monday, May 11, 2015 6:15 AM, James Frankland via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
   

 Hi All,Can someone please clarify something for me on the psubs 2:1 tank volume calculator. "Length of Skirt".  Is this the total height, ie from the centre to the edge of the tank head?  Or from the edge to the corner\knuckle radius?   My tank heads are these ones.  http://www.purdie.co.uk/products/2-1_semi_ellipsidal.php Many thanksJames
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