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.com
To:
personal_submersibles@psubs.org
Subject: 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.org
Subject: Re: [PSUBS-MAILIST] Large Plate Multi Thru Hull Options
Date: Fri, 30 Jan 2009 17:53:03 -0500
From:
vbra676539@aol.com
Brent,
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
=