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