Does anyone know details of the construction, I have just discovered that we touch a hard bottom at some low water tides. I am worried about possible damage to the gel coat on the underside of the keel & consequent moisture ingress traveling elsewhere.
I don’t know the specific answer to your question, but when I went to the factory in Finland the team all assured me that all Nauticat’s are built so they can cope with a sudden encounter with granite which abounds in Finland.
Hopefully someone else will know the answer though,
When I bought Naïla back in 2011, the previous owner explained me there is a void between the bottom of the hull and the inside weight (lead ? don’t know the exact word). In fact the void extend slightly to the side of the flat bottom of the hull and Naila was repaired for that. She was also repaired in december 2014 when I discovered some GRP missing on the tilted (inclined ?) front part of the hull. That latter part at that location has no void. Actually the 2011 shock/void was also reinforced in 2014. I can give you more details and pictures if needed
hope it helps,