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Old 06-04-2014, 17:48   #1
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Join Date: Jul 2008
Location: Agnostic
Boat: Bahia 46
Posts: 34
Bridge twist stress

I've been looking at older Bahia 46s as I'm on a budget and I've seen a few now with stress fractures on the deck in front of the mast. They tend to reach out from the mast diagonally forward and outboard, rippling the top layer of gel coat.

I'm wondering what's the best strategy for managing this situation as it's seems to be an inevitable aging failure that shows up after around fifteen years in service.

One I had seen was left to fester and had de-laminated resulting in very high moisture reasons all across the deck from hull to hull! The sandwich core was soaked and according to surveyor would need to be completely ripped out and rebuilt. Engineers in the dock yard reckoned it would also need struts to retain stiffness.

Pics attached are a much less dramatic example at the early stage of the process. It's not so easy to see in these photos but the contours are around a 5 to 10mm in places.

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Old 07-04-2014, 07:34   #2
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Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
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Re: Bridge twist stress

It's hard to tell from your pics if that is stress from the mast or something else going on. The mast sits on a bulkhead that runs laterally from hull to hull. I would in interested in examining that in detail. From what I can tell from your pics, that could be poor quality cosmetic repairs.
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