A revision to my description of the structure of my bulkhead. I took my chainplates off yesterday and in the chainplate area the bulkehad is (from aft foreward) veneer, approximately 1" fiberglass (maybe thicker), 1/4" plywood, liner. I do not know where the balsa starts but we'll be discovering that over the next few months. There is balsa outboard of the chainplate with what seems to be 1/4" or so of glass on the aft side.
Also, I am coming to believe that at some point the aft portion of the bulkhead under the veneer is actually 1/4" plywood not veneer. We'll be finding out about that too. I'll report back.
