[PSUBS-MAILIST] wanted

Tue Dec 9 17:19:05 EST 2014

Did a quick calculation & there will be 491lb of lift ina 36" hemisphere, so yes it would not pay to take short cuts mounting it.Remember you will get 1/3rd thickness at the apex which will be your most vulnerable point, out at the front.Alan

      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Wednesday, December 10, 2014 10:45 AM
 Subject: Re: [PSUBS-MAILIST] wanted

Alan,
I was thinking about welding a ring to the remaining section of steel ballast tank, then place the dome with a small flange on the ring.  Then another ring to clamp the dome's flange.  I don't like the idea of drilling the flange.  I got a price from Vancouver, 664 dollars for the 3/8 thick dome.  Got another price for 1/2 in dome from Nova Scotia 1,000 dollars US plus shipping.
Hank--------------------------------------------
On Tue, 12/9/14, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] wanted
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Tuesday, December 9, 2014, 4:02 PM

 So are you
 going to mount the dome with it's flange
 on?ie. weld
 on a circle of bolts & have a soft gasket that the
 domesits on
 & then another gasket & a  retaining
 ring?The reason
 I ask is that the retaining ring could also be used in
 the dome
 forming process to clamp the dome down & save
 youa
 bit of money. Alan

    From: hank pronk via
 Personal_Submersibles
 <personal_submersibles at psubs.org>

 To: Personal
 Submersibles General Discussion
 <personal_submersibles at psubs.org> 

 Sent:
 Wednesday, December 10, 2014 9:32 AM

 Subject: Re:
 [PSUBS-MAILIST] wanted

 Alan,
 I plan
 to remove the entire tank ahead of the vent valve.
 Hank--------------------------------------------
 On Tue, 12/9/14, Alan James via
 Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:

  Subject: Re:
 [PSUBS-MAILIST] wanted
  To: "Personal
 Submersibles General Discussion" <personal_submersibles at psubs.org>
  Received: Tuesday, December 9, 2014, 3:12
 PM

  Hank,are you
  just replacing that conical bolt on portion at
 the
  front?Alan

     From: hank pronk via

 Personal_Submersibles
  <personal_submersibles at psubs.org>

  To: Personal
  Submersibles General Discussion
  <personal_submersibles at psubs.org>

  Sent:

 Wednesday, December 10, 2014 9:01 AM

  Subject: Re:
  [PSUBS-MAILIST]
 wanted

  Alan,
  As per

 ABS rules, the sub can surface on one ballast tank.  Also
 I
  could drop the lead weight that is in the
 front.  I found a
  company in Calgary (3hr
 away)  that will blow me a dome 3/8
  thick
 and 3/16 at the apex. I am trying to find a heavier
  one still, but it's a start.  

  Hank

 --------------------------------------------
  On Tue, 12/9/14, Alan James via
  Personal_Submersibles <personal_submersibles at psubs.org>
  wrote:

 Subject: Re:
  [PSUBS-MAILIST] wanted
   To: "Personal

 Submersibles General Discussion" <personal_submersibles at psubs.org>
   Received: Tuesday, December 9, 2014, 2:50
  PM

 Hi

  Hank,these
   people have some options.They
  have
   a standard 1/4"
 thick 36"
  diameter product.
   Are you

 going to be able to get out of your sub should the
  ballast
   tank
 break?Plastic

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 Plastic Hemispheres | California Quality Plastics
   Plastic Domes and Spheres

         Plastic

 Domes | Plastic
  Hemispheres | California
   Quality...Acrylic
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 Plastic Domes &
   Hemispheres
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   Bell Jars Camer...View
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   Alan

      From: hank pronk

 via
   Personal_Submersibles

  <personal_submersibles at psubs.org>

   To:

 personal_submersibles at psubs.org

    Sent: Wednesday,

  December 10, 2014 8:36 AM
    Subject:
   [PSUBS-MAILIST]
 wanted

   Hi all,
   I am looking
 for
  a 36
   in ish dia
 acrylic dome.  The dome
  will not be a
 pressure
   dome.  I intend to
  remove the front ballast tank from Gamma

  and replace it with an
 acrylic dome.  The dome will act
  as
   the new ballast tank.  I discovered
  that sitting in the
   front
 of the sub, the
  visibility is quite
 acceptable if it
   were

 not for the steel ballast tank.  
   Any
   leads would be appreciated.

  Hank 

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