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Hull flexing damage

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jracoffman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jracoffman Quote  Post ReplyReply Direct Link To This Post Topic: Hull flexing damage
    Posted: 18 July 2017 at 12:13
After pulling up the floorboard in the forward cabin for the first time in as long as I can imagine, I noticed something didn't seem quite right. Lots of cracking of the fiberglass tabbing that secures the hull to the grid, which shows signs of hull flexing. I haven't even been sailing in anything I would consider to be particularly rough weather. Has anyone come across this issue? If so, how was it repaired, what did it cost, and did Hanse cover any of the costs under its warranty?

Will probably have to have 15 hours of fiberglass work done this winter that will likely entail creating some access holes as well. Bummer.

James C
Gemini, Hanse 375 #644
USA 60468
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Rubato View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2017 at 17:28
You should consult an expert (surveyor) but I do not believe you are looking at a structural problem at all. I don't believe this is holding the hull to the grid. What I think this is, is one of the liners cracking where it attaches to the hull. The "liner" provides a structure for the internal features - seats, forward berth, etc. The question becomes, in what other ways does the liner attach and is this just cosmetic or something that should eventually be fixed up.

Edited by Rubato - 18 July 2017 at 17:30
Steve

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StavrosNZ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2017 at 02:54
The cracking in your photos is off sprayed flow coat to tart up the joins, quite often there are air voids below this flow coat as its been applied so poorly. It has no inherent strength it is simply cosmetic finishing.

Ideally these joins should be taped and glassed but never are on modern production boats. You will find this cracking has happened in haul out or similar when the hull has been stressed, very unlikely to happen as a result of sailing.

Its not particularly expensive to have boat builder tape and glass these and colour match the finish, i doubt you have structural issues but if in doubt check with a boat builder.


Edited by StavrosNZ - 19 July 2017 at 02:57
Stephen
2010 H400, Auckland, New Zealand
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