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cisco said..

MorningBird said..

cisco said..

julesmoto said..

woko said..
You might want to put a helmet on and stay above decks too.The bene we chartered a couple of years ago had double skin around the garboard area that made it difficult to determine were a bit of water sloshing around the bilge was coming from, let alone even see the keel fixings.

Yeah because nobody wants to check, service or heaven forbid see ugly things like bolts.

Hell I'm not even convinced that I like headlinings. Mind you I particularly dislike through deck bolts that aren't cut off just after the nut although a small rebated teak cover is still safer. Helmet again?

If I can't see the keel bolts when I lift the cabin sole I would not own the boat. If the keel bolts are in line single row I would not own the boat, Keel bolts must be double row or if single row alternatively angled as in S&S 34.

Also for through deck bolts dome nuts are the answer.

Not quite with the S&S. The keel bolts have one up forard then in pairs affest until the stern one on its own. The bolts mid keel are about 15-20cm apart.
Onn Morning Bird they are all visible and accessible just by lifting a board.

Cicely June, the first S&S 34 to come to Australia had a single row of alternatively out ward angled keel bolts which allowed easy access to the bottom nuts. From memory the bottom nut cavity was just filled with some sort of bog.

The outward angling eliminated localised stress at the keel to hull point.

Hello Cisco - with respect appreciate advice of how the below text worked to "eliminated localised stress at the keel to hull point". Do you have a cross sectional schematic showing this clearly? Thanks in advance.

"The outward angling eliminated localised stress at the keel to hull point."

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r13 said..

Hello Cisco - with respect appreciate advice of how the below text worked to "eliminated localised stress at the keel to hull point". Do you have a cross sectional schematic showing this clearly? Thanks in advance.

"The outward angling eliminated localised stress at the keel to hull point."

I don't have a diagram but consider it. If you have a single row of bolts i.e. in line and parallel there will be alternating bending stress on the bolts at the hull/keel joint point causing the bolts to work harden and become brittle.

With the bolts angled opposing each other the stress will only be stretching which will not work harden the bolts.