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RE: [PSUBS-MAILIST] Hull Penetration and Reinforcement



Vance that sounds similar to the way Phil attaches his footwells.  Nice design feature.    

When you see an FEA of a thick hatch reinforcing just welded into the shell it is the shell that shows the stress and that 3” x 1” ring would spread and lessen that.

Regards, Hugh

 

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Wednesday, 21 April 2010 1:42 p.m.
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Hull Penetration and Reinforcement

 

 

Vance, 
 
Send me the following info and I'll run it through the calculator. 
 
1) design depth of PC-8 

This is the C model: 1000 fsw.
2) hull diameter (OD)

43" 
3) hull thickness 

0.5" (A516Gr70).
4) Is the 28 inch dimension ID or OD? I need the ID dimension. 

Let's call it ID.
5) Does the unit extend into the cabin? If so, how far? 

Yes, and is milled to the hull radius minus about an inch. There is also a double thickness collar welded into the hull, a ring section that is about 1" X 3". Most notable is that this reinforcement assembly is a flanged unit. The conning tower is an independent structure, bolted to the hull.
 
Jon 
 
 
vbra676539@aol.com wrote: 
> It would be interesting to find out about the conning tower pens. My > PC-8 print has a 28" pen, which allows for 8 X 8" viewports in the > circumference. And I'm here to tell you, that's better than six. 
> Vance 
 
 
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__________ Information from ESET NOD32 Antivirus, version of virus signature database 5045 (20100420) __________

The message was checked by ESET NOD32 Antivirus.

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