[PSUBS-MAILIST] Fwd: hemi heads

[hank pronk via Personal_Submersibles]

Kieth,What a great story, how were you involved with this sub.  You lucky duck!Hank 


     On Sunday, November 8, 2015 5:53 PM, Keith Gordon via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
   

 One more Hank of her in the water after a test dive after 10 years or more out of the water I'm the guy in the red shirt happy we survived! - these photos were taken in 1991 - no doubt you will see her when you visit Phil's bone yard - give her a pat from meCheersKeith



On 9/11/2015, at 12:57 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Kieth,Nice pictures, what a beauty with her clothes off ;-)  Pete Will do, I will take lots of pictures.Hank 


     On Sunday, November 8, 2015 4:51 PM, Pete Niedermayr via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
   

 Hank, Please check out those external gauges.

Pete
--------------------------------------------
On Sun, 11/8/15, Keith Gordon via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: [PSUBS-MAILIST] Fwd:  hemi heads
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Date: Sunday, November 8, 2015, 5:25 PM
 
 As discussed
 Hank have removed one image to reduce to 418 KB - will see
 how this goesKeith 
 Begin forwarded message:
 From:
 Keith
 Gordon <searov at xtra.co.nz>
 Subject:
 Re:
 [PSUBS-MAILIST] hemi heads
 Date:
 9 November
 2015 9:34:32 AM NZDT
 To:
 Personal
 Submersibles General Discussion <personal_submersibles at psubs.org>
 
 Hi Hank
 Maybe of interest - I have attached some pix of
 Pisces 8 without her clothes on - 
 Cheers Keith Gordon
 On 9/11/2015,
 at 5:17 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 
 Sean,By
 all means, anyone is welcome to any drawings I obtain or map
 from the Pisces.    I actually already
 have material price to machine the hatch from a solid disk
 of 516-70N  this way it is one piece with no welds.
  I just need the drawing first to order the
 disk.Hank
  
 
 
      On Sunday, November
 8, 2015 8:52 AM, Sean T. Stevenson via Personal_Submersibles
 <personal_submersibles at psubs.org>
 wrote:
    
 
  I'd be
 interested in having a look at those drawings.  The
 idea with a
 conical bearing face on a hatch,
 if you are not trying to establish a
 metal-to-metal seal, is to provide a load path
 through the hatch itself
 to carry the shell
 stress that would otherwise require heavy
 reinforcement around the hole.  Thus, the
 "ideal" hatch would be the
 same
 thickness and curvature as the shell it is replacing,
 aligned to it
 so the load transfers straight
 through, with a flange on both the hatch
 and
 shell parts to create a substantial bearing face.  The
 conical angle
 in that case would be set by
 the hatch diameter, as the ideal interface
 angle would be perpendicular to the shell at
 every point.  I suspect
 that in
 practice, the cone is exaggerated beyond that, because
 we're
 talking about very small angles on
 larger spheres - on a PSub, perhaps
 it is
 more important.  The other advantage is of course the
 self-centering.
 
 Sean
 
 
 On 2015-11-07
 16:26, hank pronk via Personal_Submersibles wrote:
 > Dr Nuytten thinks he has detail drawings
 that he is willing to share
 > with me, if
 he can not find them, he has given me permission to
 measure
 > one of his Pisces in the bone
 yard.   I may have a look for myself even
 > with drawings, just because I am a visual
 guy- if I see it I can make
 > it.  
 Besides, how fun is a day at the Nuytco bone yard :-)
 > Hank 
 
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