| 
 Dan,  Sounds reasonable, I'll have to get my 
basic list, and wish list together and see what types and sizes of connections I 
will need/want. Then see if I can fit them all in the main assembly of my 
boat.  I would just hate to have to cut into and weld on the hull down the 
road, if I can plan for most of it now.   I've been working on sub 
assemblies for my sub, and bit by bit the whole puzzle will start to come 
together. There are always adjustments when that happens of course.   
 
  
I can see one front head plate easily being used 
up just for five or more lights, a camera, and a video camera.  
Then the other plate for pneumatic control of the mushroom vent and future 
grabber arm.  Having one of each side of the front head helps in balance 
some.  For the rear head I have the need for power to the two stern 
thrusters, and at least three lights, so I might get away with just one plate 
there centered on the head. I'm thinking I want to move the flood valve to a 
more forward local, since I plan to use it a fair bit for wet exit 
training. 
  
I have not decided if I'll place a O2 tank in 
under the rear MBT like Alec did, or install two smaller ones just forward or 
aft of the conning tower basically like on Cliff's R300, but under a small 
standing platform.  At some point I would like to have a number of sonar 
units. At least one pointed forward, one back, one up, one down, one 
starboard, and one port.  So that's at least six small thru hulls I need to 
plan for. Then we have the communications system David and crew are working on. 
 
  
Man is sounds like I need to just take a machine 
gun to the hull, and when the smoke clears, just weld in a thru hull over every 
bullet hole. ;)' 
  
BH 
  ----- Original Message -----  
  
  
  Sent: Wednesday, February 04, 2009 5:29 
  AM 
  Subject: Re: [PSUBS-MAILIST] Large Plate 
  Multi Thru Hull Options 
  
  
  Brent, 
    
  Some of the stuff you listed will always be needed to 
  operate the sub.  For through hulls that will always be used, like MBT 
  connections, there isn't any reason to run them through plates.  Just 
  mount through hull fittings directly to the hull in places where they will be 
  best located.  Only install the plate through hulls where you may use 
  them for changeable stuff and future additions.  Why create stress areas, 
  more welds, more O-rings and places to possibly leak where you don't need 
  them?  Six is way to many. 
    
  Most likely one plate will do you, but I can see as many 
  as three, one up front down low, one somewhere in the aft end cap and maybe 
  another on top behind the conning tower.  All you really need to do 
  is get through the hull.  You can run piping or wires outside the hull as 
  needed too.  
    
  Dan H 
  
    ----- Original Message -----  
    
    
    Sent: Tuesday, February 03, 2009 5:02 
    PM 
    Subject: FW: [PSUBS-MAILIST] Large 
    Plate Multi Thru Hull Options 
    
 
  
    
    Vance,  The Captain 
    didn't remember installing the plate thru hull, but it might of been his 
    install.  The two plate thru hulls I'm planning for the front head, are 
    for lighting, a future manipulator, still and video cameras, sonar, air for 
    filling the front MBT, pneumatic actuation of the mushroom vent, etc, 
    etc..  So the one just forward of the conning tower, might be used for 
    some instrumentation I want in front of the forward viewing area, some 
    additional lighting, perhaps cameras, and a large light that I can rotate 
    and change the angle of, sort of like a police light, by means of pneumatic 
    or electric actuators, and a couple other future items. In all I'm thinking 
    of installing six of these S201 type plate thru hulls. Two in each head, and 
    two near the conning tower under small standing platforms much like seen on 
    the Delta sub, but a bit higher to make room for the plate thru hull 
    connections, and keep my feet dry.
 
  Szybowski
 
 
 
  
     
    To: personal_submersibles@psubs.org Subject: Re: [PSUBS-MAILIST] Large 
    Plate Multi Thru Hull Options Date: Sat, 31 Jan 2009 09:39:38 
    -0500 From: vbra676539@aol.com
  As the sub was used extensively, 
    I'd say somebody did some design work, possibly Captain Kittredge himself. 
    It has that look. What would you use the front penetration for? If you are 
    planning a manip or something that needs a dozen or so pens, I think that 
    I'd consider putting it forward and down somewhere to get it closer to the 
    source, and cut down somewhat on the tube 
    bending. Vance
 
  -----Original Message----- From: Brent 
    Hartwig <brenthartwig@hotmail.com> To: PSUBSorg 
    <personal_submersibles@psubs.org> Sent: Fri, 30 Jan 2009 8:00 
    pm Subject: RE: [PSUBS-MAILIST] Large Plate Multi Thru Hull 
    Options
  
    
    
    Vance,  I 
    just added five additional pictures of the plate thru hull on my 
    K-250.  Two show a interior view, and the others show some basic 
    measurements I took some time back before I purchased the sub. I can get better measurements 
    before I head south, and make up a CAD model and drawings for 
    you.
 
  http://cid-5085d10eb6afe47c.skydrive.live.com/browse.aspx/Electrical%20Thru%20Hull%20Wiring/Large%20Plate%20Thru%20Hull%20on%20K-250%20%7C3118
  Szybowski
    
 
    From:  brenthartwig@hotmail.comTo: 
     personal_submersibles@psubs.orgSubject: 
    RE: [PSUBS-MAILIST] Large Plate Multi Thru Hull Options Date: Fri, 30 Jan 
    2009 17:00:23 -0800
    
     Vance,  
    Having easy thru hull options is useful. I will be adding another plate thru 
    hull assembly in front of the conning tower as well under a small standing 
    platform.  I also want that same type of platform behind the conning 
    tower.  That existing plate thru hull, looks like they just used a 
    standard pipe flange and welded it in. My friend had SS ones like that he 
    installs in his SS tanks I could use if I wished.  I don't have all the 
    data here with me, but if I recall correctly the tube has a ID of 6 inches, 
    and a wall thickness of 1/4".  The top plate is 5/16" thick and the 
    flange is 3/8" thick.  The OD of the plate is 8 3/4".  I was 
    planning or replacing the steel plate with a thicker 316 SS one.
  I've 
    now been thinking about cutting off the flange and installing a smaller 
    diameter plate, and attach it internally sorta like the ones on the S201, 
    but use welded on SS tabs instead of the SS retaining ring, to make it even 
    easier and cheaper to fab up. This configuration might be the cheapest and 
    easiest to make and install in the tube section or the heads.  
    Basically you just start with a cheap steel tube. I'm planning on making a 
    CAD model shortly, so I can show you exactly what I'm 
    thinking.
 
  Regards,Szybowski
    
 
    To:  personal_submersibles@psubs.orgSubject: 
    Re: [PSUBS-MAILIST] Large Plate Multi Thru Hull Options Date: Fri, 30 Jan 
    2009 17:53:03 -0500 From:  vbra676539@aol.comBrent, It 
    looks like a pretty good way to get multiple connectors without having to 
    chuck the sub up in a mill. How thick is that flange, and how thick the 
    tubular penetration? Assuming they were an assembly, it seems like you might 
    be able to install something like that without distorting the O-ring mating 
    surface. Maybe I'd be tempted to repace the disc with a stainless piece, but 
    hey, it's there, right? Run what you brung. Vance
     
 -----Original 
    Message----- From: Brent Hartwig < brenthartwig@hotmail.com> To: 
    PSUBSorg < personal_submersibles@psubs.org> Sent: 
    Fri, 30 Jan 2009 4:45 pm Subject: RE: [PSUBS-MAILIST] Large Plate Multi 
    Thru Hull Options
        
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