<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14pt"><div><span>Jim,</span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18.66px; font-style: normal; background-color: transparent;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18.66px; font-style: normal; background-color: transparent;"><span>I had not seen that particular spreadsheet, thank you!</span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18.66px; font-style: normal; background-color: transparent;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue,
 Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18.66px; font-style: normal; background-color: transparent;"><span>I do have the advantage of software that will accurately calculate weights and balances based on materials and position within the model. But, I have to get the broad strokes done first to do some fine tweaking later. In the past, all this was done on paper and then trial and error in practice.</span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18.66px; font-style: normal; background-color: transparent;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18.66px; font-style: normal; background-color: transparent;"><span>Joe</span></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica
 Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 14pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> On Sunday, May 4, 2014 9:09 PM, via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br> </font> </div>  <div class="y_msg_container"><div id="yiv9394213650"><div><font id="yiv9394213650role_document" color="#000000" face="Arial" size="2">
</font><div><font size="3">Joe,</font></div>
<div><font size="3"></font> </div>
<div><font size="3">Per ABS, the CB must be at least 2" above the CG when 
submerged.  It must still be at least 1" above in the event the drop weight 
is released.</font></div>
<div><font size="3"></font> </div>
<div><font size="3">When I was considering auxiliary saddle tanks I planned to 
position them so the tops were even with the water line when all tanks were 
blown.  My thinking was to gain the maximum freeboard available since any 
portion of the tanks above the water line contributes nothing to buoyancy.  
However Alec very correctly pointed out that the portion above the water line 
functions as reserve buoyancy to counteract roll when that side of the boat is 
depressed such as when someone steps on that tank.</font></div>
<div><font size="3"></font> </div>
<div><font size="3">The CG/CB spreadsheet that Cliff developed is on the Psubs 
website.  It's an excellent design tool.  If you aren't already using 
it:  <i>Psubs/org>Resources & Reference>Design 
Tools.  </i>"Ballast & Buoyancy Control" is on the menu at 
the left side.  Once you open the spreadsheet, choose the tab at the bottom 
labeled "Instructions."</font></div>
<div><font size="3"></font> </div>
<div><font size="3">Best regards,</font></div>
<div><font size="3">Jim</font></div>
<div> </div>
<div>
<div>In a message dated 5/4/2014 4:54:05 P.M. Central Daylight Time, 
personal_submersibles@psubs.org writes:</div>
<blockquote style="padding-left: 5px; margin-left: 5px; border-left-color: blue; border-left-width: 2px; border-left-style: solid;"><font color="#000000" face="Arial" size="2" style="background-color: transparent;">
  </font><div class="yiv9394213650yqt5886898870" id="yiv9394213650yqt82423"><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 14pt; background-color: rgb(255, 255, 255);">
  <div><span>Hank,</span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span><br clear="none"></span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span>Most 
  boats see about 100 hours use a year. I expect this to be no different. I want 
  a neat little toy to play with in the garage on the occasions when my wife 
  turns me loose! :)</span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span><br clear="none"></span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span>This 
  is why I want to section the hull,...and I just convinced myself to shorten 
  the thing a bit!</span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span><br clear="none"></span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span>Joe</span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span><br clear="none"></span></div>
  <div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 18px; font-style: normal; background-color: transparent;"><span><br clear="none"></span></div>
  <div class="yiv9394213650yahoo_quoted" style="display: block;">
  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 14pt;">
  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;">
  <div dir="ltr"><font face="Arial" size="2">On Sunday, May 4, 2014 5:45 PM, hank 
  pronk via Personal_Submersibles <personal_submersibles@psubs.org> 
  wrote:<br clear="none"></font></div>
  <div class="yiv9394213650y_msg_container">Joe,<br clear="none">Sounds like you need to have the longest 
  cones possible at each end to reduce the size of the free flooded areas.  
  Another option is to change the design, decide what your priorities are.  
  What is most important? if long transits are the plan then you may need to 
  change things.  If fuel cost is a consideration, another change.  
  Looking very cool dock side, you nailed it. It just wouldn't be fun if it was 
  easy.<br clear="none">Hank<br clear="none">--------------------------------------------<br clear="none">On Sun, 
  5/4/14, Joe Perkel via Personal_Submersibles <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> 
  wrote:<br clear="none"><br clear="none">Subject: Re: [PSUBS-MAILIST] Terminating a conical 
  transition<br clear="none">To: "Personal Submersibles General Discussion" <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">Received: 
  Sunday, May 4, 2014, 5:30 PM<br clear="none"><br clear="none">Sean,<br clear="none">Have<br clear="none">you ever notice how the 
  Civil War design of the USS<br clear="none">Alligator stabilized the boat submerged? A 
  couple of crazy<br clear="none">little tethered floats, but the rationale 
  has<br clear="none">never escaped me.<br clear="none">I<br clear="none">will reduce free flood space wherever I 
  can. Trapped<br clear="none">inertia being on my mind, but I needed someone to remind 
  me<br clear="none">of the waste in efficiency / power requirements,<br clear="none">thanks! Also, 
  your comments bring home some compelling<br clear="none">reasons to shorten the 
  design with a "Just<br clear="none">enough but no more" 
  design<br clear="none">mindset.<br clear="none">I've<br clear="none">given thought to the conical section in the 
  front, I can<br clear="none">reduce this down to a 30" head with forward viewing 
  ala<br clear="none">Kraka, but quite the tight fit! Not sure, I have to give it<br clear="none">some 
  more thought.<br clear="none">If<br clear="none">I reduce the aft end with a cone, then I would bring 
  the<br clear="none">motor inside and do a standard marine hybrid<br clear="none">installation. 
  Expensive, but certainly a more reliable<br clear="none">answer. If I do that, I would 
  dispense with the notion of<br clear="none">propulsion units in the aft end of 
  the pods, truly no<br clear="none">  need then. This boat 
  requires a  massive<br clear="none">ventilation / climate control scheme for 
  surface operations,<br clear="none">that's why I've been overly generous with 
  the<br clear="none">machinery space in these early drafts.<br clear="none">I'm<br clear="none">still concerned about 
  stability because I have to contend<br clear="none">with what to do with all of that 
  centerline space. The VBT<br clear="none">would take up some, but I would have to flood 
  the<br clear="none">rest.<br clear="none">Thanks<br clear="none">again Sean!<br clear="none">Joe<br clear="none">    On Sunday, May 
  4,<br clear="none">2014 4:56 PM, Joe Perkel via Personal_Submersibles<br clear="none"><<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> 
  wrote:<br clear="none">    Hank,<br clear="none">What<br clear="none">you see there is the<br clear="none">  
  original Seehund arrangement, my intention is as you say,<br clear="none">up higher. The 
  aft cone on mine essentially now an MBT.<br clear="none">Those lower volumes will be 
  flooded in practice, but I am<br clear="none">wondering if they could be blown down dry to 
  help with<br clear="none">trailer launching and recovery??<br clear="none">Plenty,<br clear="none">and I mean plenty 
  of room along the centerline for keel<br clear="none">ballast.<br clear="none">I<br clear="none">keep thinking about 
  what you've told me regarding Gammas<br clear="none">attachment, always in the back of 
  my<br clear="none">  mind!<br clear="none">Thanks<br clear="none">Hank!<br clear="none">Joe<br clear="none">    On Sunday, May 
  4,<br clear="none">2014 4:34 PM, hank pronk via Personal_Submersibles<br clear="none"><<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> 
  wrote:<br clear="none">    Joe,<br clear="none">Your dive tanks are to low, they should be 
  at<br clear="none">the top of the sub.  The way you have it will be 
  less<br clear="none">stable.<br clear="none">The motor pod should be okay, just<br clear="none">like the K subs. You 
  do not want your torpedo's to be<br clear="none">buoyant, they should be as heavy as 
  possible 
  for<br clear="none">stability.<br clear="none">Hank<br clear="none">--------------------------------------------<br clear="none">On<br clear="none">  
  Sun, 5/4/14, Joe Perkel via Personal_Submersibles <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">wrote:<br clear="none"><br clear="none">  
  Subject: Re:<br clear="none">[PSUBS-MAILIST] Terminating a conical transition<br clear="none">  To: 
  "Personal Submersibles General<br clear="none">Discussion" <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  Received: Sunday, May 4, 2014, 3:07 PM<br clear="none">  <br clear="none">  I've 
  incorporated<br clear="none">  some of the suggestions in the attached<br clear="none">drawing. 
  Still,<br clear="none">  I've got a lot to think<br clear="none">about here but I am also 
  excited<br clear="none">  about the<br clear="none">possibilities and the potential outcome. 
  This<br clear="none">  image should give some idea of<br clear="none">  what's on my 
  mind.<br clear="none">  What you see is the<br clear="none">water ballast arrangement<br clear="none">  on 
  the original<br clear="none">Seehund, and how my proposed pressure<br clear="none"><br clear="none">boundary fits 
  into this scaled down version. The<br clear="none">following<br clear="none">  is a list of 
  concerns and or<br clear="none">design<br clear="none">  considerations.<br clear="none"><br clear="none">1)<br clear="none">  
  Clearly, I have no need to compensate<br clear="none">for the loss of<br clear="none"><br clear="none">  
  torpedoes<br clear="none">  2)<br clear="none">  New pressure<br clear="none">boundary provides for massive 
  MBT volumes<br clear="none"><br clear="none">(Low pressure compressor to blow 
  down<br clear="none"><br clear="none">volumes)<br clear="none">  3)<br clear="none">  Torpedo<br clear="none">battery pods may need 
  to incorporate some free<br clear="none">  flooding spaces to reduce weight, or 
  perhaps<br clear="none">reduce battery capacity to a single pod in<br clear="none"><br clear="none">lieu of the 
  former forward water ballast tank, then<br clear="none">  completely free 
  flood both torpedoes<br clear="none">completely??.<br clear="none">  (Boat will incorporate 
  a<br clear="none">gen-set)<br clear="none">  4) Questionable<br clear="none"><br clear="none">reliability of external motor 
  pod assembly.<br clear="none"><br clear="none">5)<br clear="none">  Stability considerations<br clear="none">  Thanks 
  for the input<br clear="none">  gents,<br clear="none">It really helps me to take a step back 
  on<br clear="none"><br clear="none">occasion!<br clear="none">  Joe<br clear="none">  <br clear="none">  <br clear="none">    
    On<br clear="none">Sunday,<br clear="none">  May 4,<br clear="none">  2014 10:19 AM, hank pronk 
  via<br clear="none">Personal_Submersibles<br clear="none">  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">wrote:<br clear="none">  
     Joe,<br clear="none"><br clear="none">When I mounted the tanks back on<br clear="none">  Gamma, I 
  changed the<br clear="none">  mounting location to<br clear="none">give a greater angle also I did 
  what<br clear="none">  Vance<br clear="none">is saying on a small scale.    I then 
  poured<br clear="none">  a gallon of paint in <br clear="none">  each tank and rolled the 
  sub slowly to<br clear="none">ensure there was<br clear="none">  complete paint<br clear="none">coverage.  
  If I was operating in salt<br clear="none"><br clear="none">water I would mount some nipples to the 
  tanks with<br clear="none">  plugs.  After a dive in salt water,<br clear="none">remove the 
  plug and<br clear="none">  you have access to<br clear="none">spray fresh water inside and rinse 
  the<br clear="none">  salt<br clear="none">water out. A large panel is a good idea also 
  because<br clear="none">  you<br clear="none">  can open it up after each<br clear="none">dive and let it 
  dry out.   <br clear="none">  If I<br clear="none">had a K350, I would not copy the 
  Nekton tanks<br clear="none">  exactly.  I would change the shape so<br clear="none">they have 
  more<br clear="none">  volume at the top reducing<br clear="none">the<br clear="none">  rolling effect. 
  Also I would<br clear="none">  consider<br clear="none">making them from SS. Also SS heads solves 
  the<br clear="none">  problems entirely. Start watching ebay for ss<br clear="none">heads.  
  I<br clear="none">  once saw a ss tank exactly<br clear="none">the<br clear="none">  same as a 500gal 
  propane tank<br clear="none">  for 1,500<br clear="none">dollars on ebay.<br clear="none">  
  Hank<br clear="none"><br clear="none">--------------------------------------------<br clear="none">  On Sun, 
  5/4/14, via Personal_Submersibles<br clear="none"><<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">wrote:<br clear="none">  
  <br clear="none"> <br clear="none">Subject: Re: [PSUBS-MAILIST] Terminating a conical<br clear="none">  
  transition<br clear="none">  To: <a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br clear="none">  
  Received: Sunday, May 4, 2014, 8:32<br clear="none">AM<br clear="none">  <br clear="none">  Joe,<br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Consider using an elliptical head 
  back<br clear="none">there, for<br clear="none">  starters. You aren't<br clear="none">building for much depth 
  here, so<br clear="none">  the<br clear="none">K-350 size will be fine (.375" ish). The 
  ellipses<br clear="none">  are cheaper, do the same job, and give<br clear="none">you a touch 
  more<br clear="none">  inside<br clear="none">room. Then I would have<br clear="none">  a cone 
  rolled<br clear="none">  with a short flange on<br clear="none">the major diameter, maybe a 
  couple<br clear="none">  of<br clear="none">  inches, to match the hull OD.<br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  The 
  Nekton<br clear="none">cone-to-dome caused a<br clear="none">  pinch point<br clear="none">that was always a 
  hassle to clean and paint,<br clear="none">  and<br clear="none">  ultimately left<br clear="none">some 
  pitting in the pressure hull that had<br clear="none">  to<br clear="none">  
  be<br clear="none">weld-repaired. A short cylinder on the sheet metal<br clear="none">  would give 
  you a little more room under<br clear="none">there to sandblast<br clear="none">  and paint 
  during<br clear="none">assembly and later for overhauls. I would<br clear="none">  say for 
  maintenance a couple of<br clear="none">flush-mount, gasketed<br clear="none">  panels<br clear="none">  in 
  the tank would serve you well.<br clear="none">Don't make them<br clear="none">  too<br clear="none">  
  ornery to remove or you<br clear="none">won't do it as often as you<br clear="none">  
  will<br clear="none">  wish you had.<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  I'm wondering now about my own<br clear="none">  boat and using 
  tanks like that. Is there<br clear="none">  anyone in the<br clear="none">  
  group<br clear="none"> <br clear="none">who can plug and chug a metacentric height on 
  Nekton<br clear="none">tanks<br clear="none">  installed on a K-350? Assembly<br clear="none">would be so simple 
  that<br clear="none">  way.<br clear="none">  And it would tow better, which is always<br clear="none">a 
  good thing. The<br clear="none">  Nektons roll a bit,<br clear="none">but are reasonably stable. A 
  K with<br clear="none">  the<br clear="none">  pods should have plenty of weight down<br clear="none">low. 
  Hmm. Would it<br clear="none">  work? I'm<br clear="none">thinking yes. Anybody else have an 
  opinion<br clear="none"><br clear="none">on<br clear="none">  that?<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  Vance<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  -----Original<br clear="none">  
  Message-----<br clear="none">  <br clear="none">  From: Joe Perkel 
  via<br clear="none">Personal_Submersibles<br clear="none">  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  <br clear="none">  To:<br clear="none">personal_submersibles<br clear="none">  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  <br clear="none">  Sent: Sun, May<br clear="none">4, 2014 12:28 am<br clear="none">  <br clear="none">  Subject: 
  Re: [PSUBS-MAILIST] Terminating<br clear="none">a conical<br clear="none">  transition<br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  Vance,<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  Rethinking that aft assembly to make it<br clear="none">all soft tanks aft<br clear="none">  of a 
  hemi head ala<br clear="none">Nekton.<br clear="none">  <br clear="none">  If I<br clear="none">go weld-on to the head 
  ala Nekton, how best to attach<br clear="none">  to the head to allow for periodic 
  access<br clear="none">and maintenance?<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  Joe<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Sent from Yahoo Mail for iPad 
  <br clear="none">             <br clear="none">  <br clear="none">  
       <br clear="none"> <br clear="none">       <br clear="none">   
  <br clear="none">  <br clear="none"><br clear="none">     <br clear="none">          
   <br clear="none">   <br clear="none">   <br clear="none">  <br clear="none"> <br clear="none"><br clear="none">  
             <br clear="none">   <br clear="none">    
     <br clear="none">  <br clear="none">       <br clear="none">    
       <br clear="none">   <br clear="none">       <br clear="none">  
  <br clear="none">             <br clear="none">  
   <br clear="none">         <br clear="none">     <br clear="none">  
       <br clear="none">         <br clear="none">  
   <br clear="none">           <br clear="none"><br clear="none">    
             <br clear="none">        
       <br clear="none">    <br clear="none">  From:<br clear="none"><br clear="none">    
             <br clear="none">      
   <br clear="none">         <br clear="none">     <br clear="none">  
           <br clear="none"><br clear="none">          
     via<br clear="none">  Personal_Submersibles <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>;<br clear="none">  
             <br clear="none">   <br clear="none">    
       <br clear="none">    <br clear="none">  <br clear="none">  <br clear="none">    
     <br clear="none">         <br clear="none">   <br clear="none">  
           <br clear="none"><br clear="none">          
       <br clear="none">            
   <br clear="none">    <br clear="none">  To:<br clear="none">   <br clear="none">    
           <br clear="none">          
   <br clear="none">   <br clear="none">         <br clear="none">    
     <br clear="none">     <br clear="none">          
  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>;<br clear="none">  
             <br clear="none">   <br clear="none">    
       <br clear="none">       <br clear="none">    
   <br clear="none">             <br clear="none"><br clear="none">  
   <br clear="none">       <br clear="none">   <br clear="none">      
     <br clear="none">       <br clear="none">     <br clear="none">  
           <br clear="none"><br clear="none">        
  <br clear="none">  <br clear="none">  <br clear="none">       <br clear="none">      
     <br clear="none">   <br clear="none">           
  <br clear="none"><br clear="none">               <br clear="none">  
             <br clear="none">    <br clear="none">  
  Subject:<br clear="none"><br clear="none">              
   <br clear="none">           <br clear="none">   <br clear="none">  
         <br clear="none">       <br clear="none">    
   <br clear="none">         Re:<br clear="none">  [PSUBS-MAILIST] 
  Terminating<br clear="none">  a conical transition     <br clear="none">  
   <br clear="none">         <br clear="none">      
   <br clear="none">    <br clear="none">  <br clear="none">  <br clear="none">    
   <br clear="none">             <br clear="none"><br clear="none">  
             <br clear="none">        
       <br clear="none">   <br clear="none">       <br clear="none">  
            <br clear="none">Sent:<br clear="none">      
       <br clear="none">     <br clear="none">      
   <br clear="none">       <br clear="none">     <br clear="none">    
         <br clear="none"><br clear="none">          
     Sat, May 3,<br clear="none">2014<br clear="none">  2:03:36 PM     
  <br clear="none">             <br clear="none">  
   <br clear="none">        <br clear="none"><br clear="none">  <br clear="none">  
  <br clear="none">             <br clear="none">  
   <br clear="none">       <br clear="none">   <br clear="none">  
  <br clear="none"><br clear="none">                
   <br clear="none">           <br clear="none">   <br clear="none">  
  <br clear="none"> <br clear="none"><br clear="none">             <br clear="none">  
   <br clear="none">         <br clear="none">       
  <br clear="none">       <br clear="none">        
   <br clear="none">   <br clear="none">            
     <br clear="none">             <br clear="none">  
   <br clear="none">         <br clear="none">      
   <br clear="none">   <br clear="none">   <br clear="none">      
   <br clear="none">           <br clear="none">    
   <br clear="none">       <br clear="none">        
   <br clear="none"><br clear="none">   Joe,<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  It<br clear="none">  seems like 
  an expensive and complex<br clear="none">assembly for what you<br clear="none">  get. Why 
  not<br clear="none">close the aft segment in a simpler way and<br clear="none">  fair<br clear="none">  the 
  stern to the<br clear="none">shape you prefer? A hemisphere with an<br clear="none">  extended 
  shaft housing to put the prop<br clear="none">where you want it,<br clear="none">  for 
  instance.<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">  <br clear="none">  <br clear="none">  
  Vance<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  -----Original<br clear="none"> <br clear="none">Message-----<br clear="none">  <br clear="none"> <br clear="none"><br clear="none">  
  From: Joe Perkel via<br clear="none">Personal_Submersibles <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  <br clear="none">  <br clear="none">  To: Personal Submersibles General<br clear="none">Discussion <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  <br clear="none">  <br clear="none">  Sent: Sat, May 3, 2014 8:17 am<br clear="none">  <br clear="none">  
  <br clear="none">  Subject: Re: [PSUBS-MAILIST] Terminating<br clear="none">a conical<br clear="none">  
  transition<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">  <br clear="none">  <br clear="none">  
  Sean,<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Yes,<br clear="none">  a 
  bolted<br clear="none">flange with O ring.<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  I've<br clear="none">  attached an image of what's on my<br clear="none">mind. This hull 
  is<br clear="none">  36" OD,<br clear="none">cylinder length is 120". Anything bigger<br clear="none">  in 
  diameter, simply gets way to big and<br clear="none">bulky for<br clear="none">  
  handling.<br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  I'm<br clear="none">  thinking at this size, I must bolt at<br clear="none">least two 
  hull<br clear="none">  sections together for<br clear="none">outfitting and maintenance, and 
  the<br clear="none"> <br clear="none">cones can be un-stiffened or perhaps only at the<br clear="none">  
  joints.<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">  <br clear="none">  Joe<br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">    <br clear="none">  <br clear="none">  
    <br clear="none">  <br clear="none">    <br clear="none">  <br clear="none">     
  On<br clear="none">Friday, May<br clear="none">  2, 2014 9:50 PM, Sean T.<br clear="none">Stevenson 
  via<br clear="none">  Personal_Submersibles<br clear="none">  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  wrote:<br clear="none">  <br clear="none">  <br clear="none">     <br clear="none">  <br clear="none">  
     <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  Each cone<br clear="none">section in that case is 
  considered<br clear="none"> <br clear="none">alone, so if you were using stiffeners, you would need 
  a<br clear="none">  heavy stiffener at every joint.<br clear="none">Depending on the size, 
  it<br clear="none">  may be<br clear="none">simpler to use unstiffened geometry for such 
  an<br clear="none"> <br clear="none">  assembly.<br clear="none">  <br clear="none"> <br clear="none"><br clear="none">  <br clear="none">  
  <br clear="none">  The rules do not address bolting<br clear="none">pressure<br clear="none">  hull 
  sections together, but<br clear="none">I don't see why you<br clear="none">  couldn't,<br clear="none">provided 
  you meet the requirements in terms<br clear="none"><br clear="none">of<br clear="none">  the stress analysis 
  under the<br clear="none">maximum combined loading<br clear="none">  conditions,<br clear="none">which are 
  prescribed in the ABS rules.<br clear="none">  Might<br clear="none">  require<br clear="none">some FEA to 
  be sure. You're thinking an O-ring<br clear="none">  groove seal? Or other 
  arrangement? <br clear="none">I think an ASME<br clear="none">  code compliant flange<br clear="none">would 
  be a good place to start, but<br clear="none">  I<br clear="none">  would make sure that the 
  cross-sectional<br clear="none">area of each half<br clear="none">  of the flange<br clear="none">considered 
  individually met the requirements<br clear="none">  of<br clear="none">  a heavy stiffener per 
  ABS, at a minimum material<br clear="none">  location<br clear="none">  (bolt hole). 
  I<br clear="none">would also be inclined to use SuperBolts<br clear="none"><br clear="none">for<br clear="none">  the 
  connection. <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <a title="http://www.nord-lock.com/superbolt/multi-jackbolt-tensioners/" href="http://www.nord-lock.com/superbolt/multi-jackbolt-tensioners/" target="_blank" rel="nofollow" shape="rect">http://www.nord-lock.com/superbolt/multi-jackbolt-tensioners/</a><br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Sean<br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  On May 2, 
  2014<br clear="none">6:03:21<br clear="none">  PM MDT, Joe Perkel via<br clear="none">Personal_Submersibles 
  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  <br clear="none">  wrote:<br clear="none">  Sean,<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  Would the heavy stiffener rule apply<br clear="none">equally to 
  several<br clear="none">  cone<br clear="none">  segments stepping down at 
  different<br clear="none">angles?<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  Also, do ASME<br clear="none">pipe flange specifications translate 
  equally<br clear="none">  to bolted<br clear="none">  pressure hull sections? Have I missed a 
  section<br clear="none">  somewhere on bolted cylindrical<br clear="none">sections?<br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Very helpful<br clear="none">Sean 
  thank you!<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  Joe<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Sent from 
  Yahoo Mail for iPad <br clear="none">             
  <br clear="none">  <br clear="none">  <br clear="none">            
   <br clear="none">     <br clear="none">  <br clear="none">  <br clear="none">      
   <br clear="none">         <br clear="none">   <br clear="none">   
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">       <br clear="none">  
         <br clear="none">   <br clear="none">   <br clear="none">  
  <br clear="none"> <br clear="none"><br clear="none">             <br clear="none">  
   <br clear="none">       <br clear="none">   <br clear="none">  
  <br clear="none"> <br clear="none"><br clear="none">             <br clear="none">  
   <br clear="none">   <br clear="none"> <br clear="none">     <br clear="none">    
     <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">    
     <br clear="none">         <br clear="none">   <br clear="none">  
           <br clear="none"><br clear="none">          
       <br clear="none">            
   <br clear="none">    <br clear="none">  From:<br clear="none"><br clear="none">        
         <br clear="none">          
   <br clear="none">   <br clear="none">         <br clear="none">    
     <br clear="none">     <br clear="none">         
  Sean T. Stevenson<br clear="none">  via<br clear="none"> <br clear="none">Personal_Submersibles <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>; <br clear="none">  
     <br clear="none">     <br clear="none">          
   <br clear="none"><br clear="none">       <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">             <br clear="none">  
   <br clear="none">     <br clear="none">           
  <br clear="none">   <br clear="none">            
   <br clear="none">     <br clear="none">   <br clear="none">        
     To:<br clear="none">             <br clear="none">  
   <br clear="none">         <br clear="none">     <br clear="none">  
       <br clear="none">         <br clear="none">  
   <br clear="none">           Personal<br clear="none">  
  Submersibles General<br clear="none"> <br clear="none">Discussion <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>; <br clear="none">  
     <br clear="none">     <br clear="none">          
   <br clear="none"><br clear="none">              
   <br clear="none">   <br clear="none">              
   <br clear="none">           <br clear="none">   <br clear="none">  
         <br clear="none">       <br clear="none">    
   <br clear="none">         <br clear="none">   <br clear="none">  
     <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">      
   <br clear="none">         <br clear="none">   <br clear="none">    
         <br clear="none"><br clear="none">            
   <br clear="none">           <br clear="none">    
   <br clear="none">    <br clear="none">Subject:<br clear="none">        
     <br clear="none">     <br clear="none">       <br clear="none">  
       <br clear="none">     <br clear="none">        
     <br clear="none"><br clear="none">             
  Re:<br clear="none">  [PSUBS-MAILIST] Terminating<br clear="none">  a conical transition  
     <br clear="none">   <br clear="none">         <br clear="none">  
       <br clear="none">    <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">             <br clear="none">  
   <br clear="none">         <br clear="none">     <br clear="none">  
       <br clear="none">         <br clear="none">  
   <br clear="none">         <br clear="none">      
  <br clear="none">  Sent:<br clear="none"><br clear="none">              
   <br clear="none">           <br clear="none">   <br clear="none">  
         <br clear="none">       <br clear="none">    
   <br clear="none">         Fri, May 2, 2014<br clear="none">  
  11:45:11 PM    <br clear="none"><br clear="none">          
   <br clear="none">           <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">       <br clear="none">      
     <br clear="none">   <br clear="none">       <br clear="none">  
  <br clear="none">  <br clear="none">       <br clear="none">        
   <br clear="none">   <br clear="none">           <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">            
   <br clear="none">   <br clear="none">         <br clear="none">  
     <br clear="none">       <br clear="none">        
   <br clear="none">   <br clear="none">            
     <br clear="none">         <br clear="none">      
     <br clear="none">     <br clear="none">          
   <br clear="none"><br clear="none">     <br clear="none">       <br clear="none">  
         <br clear="none">   <br clear="none">        
       <br clear="none">           <br clear="none">  
             <br clear="none">   <br clear="none">    
       <br clear="none">       <br clear="none">  
   <br clear="none">   <br clear="none">         <br clear="none">    
     <br clear="none">   <br clear="none">          
   <br clear="none">     <br clear="none">       <br clear="none">    
       <br clear="none">   <br clear="none">        
     <br clear="none">  <br clear="none">  2:1<br clear="none">semi-elliptical heads are 
  usually<br clear="none"> <br clear="none">fabricated with some<br clear="none">  length of straight flange 
  (tangential<br clear="none">  cylindrical section) beyond the axis of<br clear="none">the 
  ellipse.<br clear="none">  Hemispherical heads may<br clear="none">or may not have a straight 
  flange<br clear="none"> <br clear="none">section, but in either case are<br clear="none">  permissible to 
  use<br clear="none">  adjacent<br clear="none">  to conical sections, provided all 
  other<br clear="none">requirements are<br clear="none">  met. For stiffened<br clear="none">cones, you must have 
  stiffeners meeting<br clear="none">  the "heavy stiffener" criteria<br clear="none">at both ends, 
  as<br clear="none">  close as practicable<br clear="none">to the cone-to-cylinder 
  and<br clear="none"> <br clear="none">cone-to-head transitions. For unstiffened cones, 
  the<br clear="none">  length<br clear="none">  L_c used in<br clear="none">overall buckling calculations 
  must be the<br clear="none"><br clear="none">total<br clear="none">  length between the next heavy<br clear="none">stiffener 
  to either side of<br clear="none">  the<br clear="none">entire compartment length, or between the 
  40% of head<br clear="none">  depth points if otherwise<br clear="none">  unbounded.  
  Cone to head<br clear="none">  welds are done in the same manner as<br clear="none">cone to 
  cylinder<br clear="none">  welds,<br clear="none">  and if your<br clear="none"><br clear="none">    head is 
  supplied w!<br clear="none">    ith a<br clear="none">  flange, it is the 
  same<br clear="none"><br clear="none">  thing.<br clear="none">  <br clear="none"> <br clear="none"><br clear="none">  <br clear="none">  
  <br clear="none">  Sean<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none"> <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  On 
  May 2, 2014 2:48:52<br clear="none">  PM MDT, Joe Perkel via<br clear="none">Personal_Submersibles 
  <<a title="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  
  wrote:<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  I have<br clear="none">  
  spotted the ABS diagrams and<br clear="none">specifications for<br clear="none">  re-enforcement 
  and<br clear="none">butt welds at conical to cylinder<br clear="none"> <br clear="none">transitions. I am 
  somewhat unclear however as to<br clear="none">  terminating<br clear="none"> <br clear="none">  at 
  the head.<br clear="none">  <br clear="none"> <br clear="none"><br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  For<br clear="none">  example, the<br clear="none">diagrams in the 
  2014 ABS underwater vehicles<br clear="none">  and hyperbaric chamber publication 
  shows<br clear="none">conical<br clear="none">  transitions<br clear="none"> <br clear="none">either bordered by 
  a<br clear="none">  cylinder at<br clear="none">either end, or simply<br clear="none">  open<br clear="none">  at 
  the small end???<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">    I want to terminate the 
  small end of a<br clear="none">conical<br clear="none">  transition<br clear="none"> <br clear="none">directly to a 
  small diameter hemi-head without another<br clear="none">  straight section, but I 
  am unclear<br clear="none">as to whether or<br clear="none">  not<br clear="none"> <br clear="none">that is 
  acceptable<br clear="none">    in practice.<br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  Joe<br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  Personal_Submersibles mailing 
  list<br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">       <br clear="none">        
   <br clear="none">   <br clear="none">   <br clear="none">  <br clear="none"> <br clear="none"><br clear="none">  
             <br clear="none">    <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">       <br clear="none">  
       <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">Personal_Submersibles mailing 
  list<br clear="none"> <br clear="none"><br clear="none">  <br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <br clear="none">  <br clear="none">  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none"> <br clear="none">  
  <br clear="none"> <br clear="none">_______________________________________________<br clear="none">  
  <br clear="none">  <br clear="none">  Personal_Submersibles mailing list<br clear="none">  <br clear="none">  
  <br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <br clear="none">  <br clear="none">  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none"><br clear="none">     <br clear="none">  
  <br clear="none"><br clear="none">  <br clear="none">  <br clear="none"><br clear="none">   <br clear="none">  
  <br clear="none"> <br clear="none"><br clear="none">    <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  
  <br clear="none"> <br clear="none">_______________________________________________<br clear="none">  
  Personal_Submersibles mailing list<br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">    <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">        
       <br clear="none">   <br clear="none">        
   <br clear="none">       <br clear="none">   <br clear="none">   
  <br clear="none">         <br clear="none">      
   <br clear="none">     <br clear="none">          
     <br clear="none">             <br clear="none">  
   <br clear="none">       <br clear="none">      
   <br clear="none">   <br clear="none">            
   <br clear="none">   <br clear="none">   <br clear="none">     <br clear="none">  
  <br clear="none"><br clear="none">             <br clear="none">   
  <br clear="none">  <br clear="none"><br clear="none">             <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none"> <br clear="none">_______________________________________________<br clear="none">  
  Personal_Submersibles mailing list<br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">  <br clear="none">    <br clear="none">  <br clear="none">  <br clear="none">  <br clear="none">  
  <br clear="none">  <br clear="none">  <br clear="none">  -----Inline Attachment Follows-----<br clear="none">  
  <br clear="none"> <br clear="none">_______________________________________________<br clear="none">  
  Personal_Submersibles mailing list<br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">  <br clear="none"><br clear="none">_______________________________________________<br clear="none">  
  Personal_Submersibles mailing<br clear="none">  list<br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none">       <br clear="none">  -----Inline Attachment 
  Follows-----<br clear="none">  
  <br clear="none"><br clear="none">_______________________________________________<br clear="none">  
  Personal_Submersibles mailing list<br clear="none">  <a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none">  
  <a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none">  
  <br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles 
  mailing list<br clear="none"><a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none">  
    <br clear="none">  
  <br clear="none">_______________________________________________<br clear="none">Personal_Submersibles 
  mailing list<br clear="none"><a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none">  
      <br clear="none">-----Inline Attachment 
  Follows-----<br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles 
  mailing list<br clear="none"><a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles 
  mailing list<br clear="none"><a title="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a title="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"></div></div></div></div></div></div><br clear="none"><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles 
  mailing 
  list<br clear="none">Personal_Submersibles@psubs.org<br clear="none">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br clear="none"></blockquote></div></div></div><br><div class="yqt5886898870" id="yqt90022">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a href="mailto:Personal_Submersibles@psubs.org" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div><br><br></div>  </div> </div>  </div> </div></body></html>