Old 02-09-2019, 05:16 PM
  #59  
skypoke
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Join Date: Oct 2002
Location: TX USA
Posts: 748
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Yes, it contributes a massive amount of rigidity even if it's lighter density foam, assuming the cavities are filled with it. Is it necessary...can you do without it? Possibly, you'll have to figure it out. Thats the Y in DIY. How many longitudidnal stringers are there and how tall are they? I'm not seeing much structure there, and expect the foam is pretty damn important but could be wrong. The advice you received about repairing cuts in the thwartships frames is right on. Fix them, and if it were me I would add at least a couple layers of lamination on top of all them. Eliminate frames? If you do you need to provide a good load path to take the place of it.

Last edited by skypoke; 02-09-2019 at 05:54 PM.
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