<html><body><div style="color:#000; background-color:#fff; font-family:tahoma, new york, times, serif;font-size:12pt"><div style="RIGHT: auto"><SPAN style="RIGHT: auto">Rick,</SPAN></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; RIGHT: auto; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN style="RIGHT: auto">Thanks', your right, it will be much safer. I am only testing to 1,000 feet, I don't think my chamber will handle a destruction test.</SPAN></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; RIGHT: auto; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN style="RIGHT: auto">Hank<VAR id=yui-ie-cursor></VAR> </SPAN></div>
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<DIV class=hr style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px" readonly="true" contenteditable="false"></DIV><FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Land N Sea <landnsea1@hawaiiantel.net><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, October 30, 2013 6:37:15 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] window test chamber<BR></FONT></DIV>
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<DIV>Back in my diving days our company retested a couple of deck chambers and they filled them completely with water leaving no air at all so if it ruptured, there would be little or no bang. If you are testing it to failure then I guess you would still need some air on the LP side so you are back to an air gap. Get a long hose with the valve on your end and stand outside the building and peek around the corner. </DIV>
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<DIV style="RIGHT: auto">Rick </DIV>
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<DIV><B>From:</B> <A title=hanker_20032000@yahoo.ca href="mailto:hanker_20032000@yahoo.ca" shape=rect rel=nofollow target=_blank ymailto="mailto:hanker_20032000@yahoo.ca">hank pronk</A> </DIV>
<DIV><B>Sent:</B> Wednesday, October 30, 2013 1:45 PM</DIV>
<DIV><B>To:</B> <A title=personal_submersibles@psubs.org href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow target=_blank ymailto="mailto:personal_submersibles@psubs.org">Personal Submersibles General Discussion</A> </DIV>
<DIV><B>Subject:</B> Re: [PSUBS-MAILIST] window test chamber</DIV></DIV></DIV></DIV>
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<DIV><SPAN>Today I built a window pressure test chamber. When the window is in the chamber there is a small air space remaining. Should that space be filled with water while the window is under pressure. The space is about 250ml.</SPAN></DIV>
<DIV><SPAN>Hank<VAR id=yiv0198988423yui-ie-cursor></VAR></SPAN></DIV>
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<DIV class=yiv0198988423hr style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></DIV><FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> hank pronk <hanker_20032000@yahoo.ca><BR clear=none><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, October 30, 2013 10:53:07 AM<BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] Hatch mechanisms<BR clear=none></FONT></DIV>
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<DIV><SPAN>Since the force on the puller hub is directed outward in this application, the loss of material for an oversize size rod should not matter. </SPAN></DIV>
<DIV><SPAN>Hank<VAR id=yiv0198988423yui-ie-cursor></VAR></SPAN></DIV>
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<DIV class=yiv0198988423hr style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></DIV><FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Alec Smyth <alecsmyth@gmail.com><BR clear=none><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, October 30, 2013 9:31:43 AM<BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] Hatch mechanisms<BR clear=none></FONT></DIV>
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<DIV dir=ltr>Can one drill out the puller thread and cut a new slightly larger one in coarse thread?</DIV>
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<DIV class=yiv0198988423gmail_quote>On Wed, Oct 30, 2013 at 10:37 AM, hank pronk <SPAN dir=ltr><<A href="mailto:hanker_20032000@yahoo.ca" shape=rect rel=nofollow target=_blank ymailto="mailto:hanker_20032000@yahoo.ca">hanker_20032000@yahoo.ca</A>></SPAN> wrote:
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<DIV><SPAN>James,</SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>It's like the puller was made for it. Be aware though, with the fine thread it is slow to unlatch. A real coarse thread, would be faster. My original idea was to use a scissor jack threaded rod and nut.</SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Hank<VAR></VAR></SPAN></DIV>
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<DIV class=yiv0198988423im><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> James Frankland <<A href="mailto:jamesf@guernseysubmarine.com" shape=rect rel=nofollow target=_blank ymailto="mailto:jamesf@guernseysubmarine.com">jamesf@guernseysubmarine.com</A>><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <<A href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow target=_blank ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> </DIV><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, October 30, 2013 7:52:05 AM
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<DIV class=yiv0198988423h5><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] Hatch mechanisms</DIV></DIV></DIV>
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<DIV>Hank,</DIV>
<DIV>Looks like a nice simple solution. Thanks for sharing that one. I've got loads of flywheel pullers and the like that could be adapted.</DIV>
<DIV>Regards</DIV>
<DIV>James<U></U><BR clear=none></DIV>
<DIV>On 30 October 2013 12:29, hank pronk <SPAN dir=ltr><<A href="mailto:hanker_20032000@yahoo.ca" shape=rect rel=nofollow target=_blank ymailto="mailto:hanker_20032000@yahoo.ca">hanker_20032000@yahoo.ca</A>></SPAN> wrote:<U></U>
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<DIV><SPAN>James,</SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>The hatch picture is with new sub on the project page. </SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Hank<VAR></VAR></SPAN></DIV>
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<DIV style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; MIN-HEIGHT: 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></DIV><FONT face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> "<A href="mailto:jimtoddpsub@aol.com" shape=rect rel=nofollow target=_blank ymailto="mailto:jimtoddpsub@aol.com">jimtoddpsub@aol.com</A>" <<A href="mailto:jimtoddpsub@aol.com" shape=rect rel=nofollow target=_blank ymailto="mailto:jimtoddpsub@aol.com">jimtoddpsub@aol.com</A>><BR clear=none><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> <A href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow target=_blank ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A> <BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, October 30, 2013
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<DIV><FONT style="BACKGROUND-COLOR: transparent" size=3 face="Arial, Helvetica, sans-serif">Checklist item: Proper tools onboard in the event a component of the hatch mechanism binds or breaks.</FONT></DIV>
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<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica">-----Original Message-----<U></U>From: James Frankland <<A href="mailto:jamesf@guernseysubmarine.com" shape=rect rel=nofollow target=_blank ymailto="mailto:jamesf@guernseysubmarine.com">jamesf@guernseysubmarine.com</A>><U></U>To: Personal Submersibles General Discussion <<A href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow target=_blank ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>><U></U>Sent: Wed, Oct 30, 2013 6:51 am<U></U>Subject: Re: [PSUBS-MAILIST] Hatch mechanisms<U></U><U></U>
<DIV>slightly lower seat!<U></U><U></U>
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<DIV>On 30 October 2013 11:40, Joe Perkel <SPAN dir=ltr><<A href="mailto:josephperkel@yahoo.com" shape=rect rel=nofollow target=_blank ymailto="mailto:josephperkel@yahoo.com">josephperkel@yahoo.com</A>></SPAN> wrote:<U></U> </DIV>
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<DIV>Speaking of this hatch issue, would all this extra hardware present a head butting problem? How to deal with that? A more dished profile, or a slightly taller conning tower? <U></U></DIV>
<DIV><U></U>Joe<U></U><U></U>Sent from Yahoo! Mail for iPad</DIV></TD></TR></TBODY></TABLE>
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<DIV><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN> </B>James Frankland <<A href="mailto:jamesf@guernseysubmarine.com" shape=rect rel=nofollow target=_blank ymailto="mailto:jamesf@guernseysubmarine.com">jamesf@guernseysubmarine.com</A>>; <U></U><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN> </B>Personal Submersibles General Discussion <<A href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow target=_blank ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>>; <U></U></DIV></DIV>
<DIV><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN> </B>Re: [PSUBS-MAILIST] Hatch mechanisms <U></U><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN> </B>Wed, Oct 30, 2013 10:06:59 AM <U></U></DIV></DIV>
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<DIV>Hank,</DIV>
<DIV>How does the mechanism work? turning the wheel obviosly lifts the ends under the hatch lip. Dont suppose you have a dwg?</DIV>
<DIV>Regards</DIV>
<DIV>James<U></U><U></U></DIV></DIV>
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<DIV>On 29 October 2013 18:15, hank pronk <SPAN dir=ltr><<A href="" shape=rect rel=nofollow>hanker_20032000@yahoo.ca</A>></SPAN> wrote:<U></U> </DIV>
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<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>that is exactly what I did with my k350 hatch. I didn't have tie rods yet so I put adjusting bolts in the dogs. I intent to change to tie rods from go carts. This is very easy to build. The slide system is the easiest to fabricate though <VAR></VAR>and less complicated. Gamma has slides.</SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Hank</SPAN></DIV>
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<DIV><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> James Frankland <<A href="" shape=rect rel=nofollow>jamesf@guernseysubmarine.com</A>><U></U><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <<A href="" shape=rect rel=nofollow>personal_submersibles@psubs.org</A>> <U></U></DIV></DIV><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, October 29, 2013 10:20:14 AM<U></U><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] Hatch mechanisms<U></U></DIV>
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<DIV>Hi Jim. I reckon i took that picture! unless you took one almost exactly the same! Its the lanzarote sub i think, i remember sending it to someone, Brent i think.</DIV>
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<DIV>On 29 October 2013 14:38, <SPAN dir=ltr><<A href="" shape=rect rel=nofollow>jimtoddpsub@aol.com</A>></SPAN> wrote:<U></U> </DIV></DIV></DIV>
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<DIV><SPAN><FONT size=3>On this hatch mechanism the dogs pivot instead of sliding. The arms are threaded to adjust the length turnbuckle style.</FONT></SPAN></DIV><SPAN></SPAN>
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<DIV style="FLOAT: none" align=left><IMG title=CIMG3887.JPG style="VERTICAL-ALIGN: middle; MARGIN: 5px" alt=CIMG3887.JPG width=275></DIV>
<DIV><SPAN><FONT size=3>For sliding dogs, beveling them where they contact the latch point allows them to progressively tighten as they move into place. The latch points on the tower should either be replaceable or have replaceable wear plates. That also allows you to change the thickness of the wear plates in order to adjust the pressure of the hatch to the landing.</FONT></SPAN></DIV>
<DIV><SPAN><FONT size=3>-Jim</FONT></SPAN></DIV><FONT face="Arial, Helvetica, sans-serif"></FONT></DIV>
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<DIV>-----Original Message-----<U></U>From: James Frankland <<A href="" shape=rect rel=nofollow>jamesf@guernseysubmarine.com</A>><U></U>To: Personal Submersibles General Discussion <<A href="" shape=rect rel=nofollow>personal_submersibles@psubs.org</A>><U></U>Sent: Tue, Oct 29, 2013 6:53 am<U></U>Subject: Re: [PSUBS-MAILIST] K-350 Mods<U></U><U></U> </DIV></DIV>
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<DIV>anything like that would be ok by the looks of things. That one is good because it only requires one through hull.<U></U><U></U> </DIV></DIV></DIV>
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<DIV>On 29 October 2013 11:25, Joe Perkel <SPAN dir=ltr><<A href="" shape=rect rel=nofollow>josephperkel@yahoo.com</A>></SPAN> wrote:<U></U> </DIV></DIV></DIV>
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<TD vAlign=top>James,<BR clear=none><BR clear=none>2400 series, look for drawings at bottom of page for that series. The cast hatches are of no value to us but the mechanisms I believe are.<BR clear=none><BR clear=none><BR clear=none>Joe<BR clear=none><BR clear=none>Sent from Yahoo! Mail for iPad</TD></TR></TBODY></TABLE></DIV></DIV></DIV>
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<DIV style="FONT-SIZE: 0px; BORDER-TOP: rgb(204,204,204) 1px solid; BORDER-RIGHT: rgb(204,204,204) 1px solid; BORDER-BOTTOM: rgb(204,204,204) 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; MIN-HEIGHT: 0px; BORDER-LEFT: rgb(204,204,204) 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></DIV><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN> </B>James Frankland <<A href="" shape=rect rel=nofollow>jamesf@guernseysubmarine.com</A>>; <U></U><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN> </B>Personal Submersibles General Discussion <<A href="" shape=rect rel=nofollow>personal_submersibles@psubs.org</A>>; <U></U><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN> </B>Re: [PSUBS-MAILIST] K-350 Mods <U></U><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN> </B>Tue, Oct 29, 2013 11:15:49 AM <U></U></DIV></DIV></DIV></DIV></DIV>
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<DIV>I cant see the one you mean Joe, is there a product number?<U></U><U></U></DIV></DIV></DIV></DIV>
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<DIV>On 29 October 2013 10:54, Joe Perkel <SPAN dir=ltr><<A href="" shape=rect rel=nofollow>josephperkel@yahoo.com</A>></SPAN> wrote:<U></U> </DIV></DIV></DIV></DIV>
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<DIV><SPAN>James,</SPAN></DIV>
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<DIV style="FONT-SIZE: 19px; FONT-FAMILY: helveticaneue, helvetica neue, helvetica, arial, lucida grande, sans-serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Ive given thought to the hatch in the past, take a look at freeman marine and look at the cam mechanism with dogs, <A href="http://www.freemanmarine.com/ProductsHatches.htm" shape=rect rel=nofollow target=_blank>http://www.freemanmarine.com/ProductsHatches.htm</A></SPAN></DIV>
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<DIV style="FONT-SIZE: 19px; FONT-FAMILY: helveticaneue, helvetica neue, helvetica, arial, lucida grande, sans-serif; FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Could not a rotating shaft pass through the center to both sides via same <SPAN>thru-</SPAN>hull as side thrusters, with a wheel on both sides and a similar cam <SPAN><SPAN>mechanism</SPAN></SPAN> on the inside? Upward Port moved a bit forward then, and beef up the hinge for extra weight as you said.</SPAN></DIV>
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<DIV><SPAN>Joe</SPAN></DIV>
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<DIV style="FONT-SIZE: 0px; BORDER-TOP: rgb(204,204,204) 1px solid; BORDER-RIGHT: rgb(204,204,204) 1px solid; BORDER-BOTTOM: rgb(204,204,204) 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; MIN-HEIGHT: 0px; BORDER-LEFT: rgb(204,204,204) 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></DIV><FONT face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> James Frankland <<A href="" shape=rect rel=nofollow>jamesf@guernseysubmarine.com</A>><BR clear=none><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> <A href="" shape=rect rel=nofollow>personal_submersibles@psubs.org</A>; PSUBS Member Discussion Group <<A href="" shape=rect rel=nofollow>member-forum@psubs.org</A>> <BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, October 29, 2013 5:55 AM<BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [PSUBS-MAILIST] K-350 Mods<BR clear=none></FONT></DIV></DIV></DIV>
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<DIV>Jon\Joe sent a message yesterday i think regarding suggested K-350 modifications.</DIV>
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<DIV>I would suggest these as critical.</DIV>
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<DIV>1. Hatch. Opening from both sides. Worst part of the design I think.</DIV>
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<DIV>2. Hatch bracket. Could do with beefing up, it feels a bit flimsy. Probably could do with some traingular flanges welding on.</DIV>
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<DIV>3. Variable tank mounting. The way the tank mounts is awkward and doesnt allow any adjustment. Much easier and better would be flat horizontal brackets welded to the battery pods that join to corresponding flat brackets on the vbt. Slotted holes on one of the planes would allow the tank to slide forward and back a little to allow that awkward vent to be fitted easily. Also the tank could be just lifted up and on. Very simple change.</DIV>
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<DIV>I think other than that, other modifications are depending on how much trouble you want to go to and cosmetics.</DIV>
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<DIV>For example,</DIV>
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<DIV>I changed the battery pod endcap seals. I had a real pain trying to make them as per the plans. The way i did them in the end with flanges was a lot easier. But probably nothing wrong with the original design.</DIV>
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<DIV>Skids. I didnt like the ones shown, they would just get all the paint knocked off. Again, probably nothing wrong with the original design.</DIV>
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<DIV>I made all the flanges and protrutions from stainless.</DIV>
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<DIV>Electrical penetrators added to the battery pods to eliminate the ones shown on the plans.</DIV>
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<DIV>The 2 extra downward facing viewports i put in are really good. You could do away with the ones at the back and put them there instead if you didnt want to make too many.</DIV>
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<DIV>The dome of course.</DIV>
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<DIV>Overpressure valve.</DIV>
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<DIV>loads of little modifications.</DIV>
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<DIV>I'm at work, and i better get on with some of it, instead of daydreaming about subs!</DIV>
<DIV>Kind Regards</DIV>
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