[PSUBS-MAILIST] Gamma hatch

[Brian Cox via Personal_Submersibles]

Hi Hank,
           I bought two stainless rings 1/2" thick by 1 1/2" wide (18" id). Which will be welded on to the conning tower and the hatch, then a o ring groove put in the hatch side.  With the drop I was able to get 6  - 6" disks which I'm going to make into electrical inserts that will go into two of my viewports.  
  Conning tower getting welded today ( 8 viewports) and also working on the other viewports on the sphere, got two welder friends that I have working on them, both 30+ years of commercial welding experience !

Brian  

--- personal_submersibles at psubs.org wrote:

From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Gamma hatch
Date: Sun, 30 Nov 2014 05:39:19 -0800

Brian,
What did you do for the hatch seat on the conning tower.  Is it stainless or did you do like Gamma has, a layer of stainless welded on.  
Hank 
--------------------------------------------
On Sat, 11/29/14, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: [PSUBS-MAILIST] Gamma hatch
 To: "PSubs" <personal_submersibles at psubs.org>
 Received: Saturday, November 29, 2014, 8:30 PM
 
 Hank,           
 Do you know how big the shaft is that goes through the top
 of your hatch?  Have you every had to disassemble it
 ?  My hatch is pretty much identical to Gamma's,
 I'm in the process of cutting in a little viewport in
 and also that rotating hatch closure shaft / thru  hull
 deal.   Seems like at least a 3/4" shaft
 would be in
 order. Brian
 
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