I've accessed the keel stringer and instead of a rectangular shaped stringer ( fiberglass covering a 3/4 thick pine board), it looks like the foam was blown in before the fiberglass cured. The glass bows out in various areas so the stringer is sometimes about 1" wide, sometimes about 3". Sometimes the glass touches the wood and sometimes it only touches foam.<br /><br />I dug out most of the old wood, leaving the curvy glass sides with foam, and some very thin wood along the sides. Question is, should I remove the entire stringer down to the hull? Or can I just put the new wood into the old cavity, fill voids with epoxy, then glass over all? It won't be pretty, but it would be just as strong as before. <br /><br />I'm starting to think the construction doesn't really matter much as long as it isn't too weak.
