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Re: [PSUBS-MAILIST] Kittredge MBT question



I fiberglassed mine to the hull. Did I mess up?
My experience with glass says it sticks real good and is very durable.
 
I layered glass under the tank to fill the gaps and then glass over it onto the
hull 1/4 inch thick or so. I would think this is plenty strong. As I build the outer hull I planned
on reinforcing to the tank to make it as rigid as possible
 
And along these lines will normal Auto body bondo etc hold up under pressure?
I planned on smoothing out a few welds with it for better paint adhesion.
 
Dean
 
In a message dated 5/15/2008 3:46:48 P.M. Central Daylight Time, vbra676539@aol.com writes:
Urethane is a good tip--I cussed steady scraping room temperature vulcanizing off that thing. Vance


-----Original Message-----
From: Dan. H. <jumachine@comcast.net>
To: personal_submersibles@psubs.org
Sent: Wed, 14 May 2008 6:27 pm
Subject: Re: [PSUBS-MAILIST] Kittredge MBT question

Vance,
 
Like Alec said, It's two inch channel on the prints. 
 
I used urethane to seal the fiberglass shell to the hull and a stainless steel strap cinched down over that. I used stainless steel bolts to attach the fiberglass to the channel support frame.  No flex at all!
 
Dan H.
----- Original Message -----
Sent: Wednesday, May 14, 2008 3:21 PM
Subject: [PSUBS-MAILIST] Kittredge MBT question

Dan H and all,

Captain George has 4" channel on his prints for the main ballast tank supports. Seems a might excessive to me. Did you cut this down? It seems like I remember a tripod support on Patience. Yes, no? What size material did you use? I'm rebuilding this one, and the old stuff is long gone, but it looks like 2" was used, originally, also three legged. Do you think that will take enough flex out? And I'm not using the honking big aft thruster this time, so won't need to support that extra tonnage in back. I'm going to build a bottom to the tank that will tie into the shells I have, then wrap around the structual steel and extend downward in the middle--not quite like yours, but similar. The idea being to get this thing done with and in the water, of course.

Vance




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