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  1. CaptainAhab

    Beefing up the insides for JSD

    I believe Gouvernail was the ghost writer for this fine work. Decades of repairing beat to shite J Boats and trailer sailors makes him the ideal Expert. 
  2. CaptainAhab

    Beefing up the insides for JSD

    Autonomous, You are making a big point of Structural Fillets. If I were doing this layup I would mix a thick batch of high density and do a larger than normal fillet in the corners. Then run the reinforcing fabric on top of the fillet. Is that what you going on about?
  3. CaptainAhab

    Beefing up the insides for JSD

    There is a big issue that hasn't been mentioned. You've got five options. Don't do it, Do it wrong. Almost do it right, Do it right, Over do it in terms of installation. The last two might save the day. The first three may sink the boat. Unless you get your attachment point right on the shear...
  4. CaptainAhab

    Beefing up the insides for JSD

    I just added to it. My Dad was a mechanical engineer. He would be all over this problem.
  5. CaptainAhab

    Beefing up the insides for JSD

    So the obvious difference between this and your design is the number of fasteners & the fasteners spread the load a far distance towards the bow. They are also up right on the deck where the load is driven directly into the corner & around. If you go to a decent structural engineer and...
  6. CaptainAhab

    Beefing up the insides for JSD

    Your original description of construction would be suitable for a load pulling nearly square from the transom. Basically adding some thickened filler to get a flat/smooth surface then bonding on a serious backing plate. As others have noted that is not what you need to engineer.  Easiest way...
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