[Public-list] depression in hull

[George Dinwiddie]

Brian,

Check the knees where the chainplates are attached.  On some boats, 
these were not quite flush with the underside of the deck, and as the 
tension closes the gap, it pulls in on the side of the hull.  If this is 
a small gap, I don't think it's cause for worry.  Much more serious 
problems include the knees pulling free from the hull, or rotting 
internally from water infiltration.

I don't think that a beam problem would create any such symptoms.  Beam 
issues are usually noticed by the head door not closing.

  - George

Brian Hofler wrote:
> While working on Putachieside (#496) recently I noticed a depression in the
> hull mid-ships near the chain plates. The depression (indentation) seemed to
> be greater on the starboard side than the port. Last year I did a major
> refit that included increasing the size of the chain plate bolts as
> described in previous postings on this site. During the refit I did not
> notice the indentations which are located at the hull / deck joint. I am
> concerned that perhaps the mast compression beam and / or the bulkhead have
> weakened thus causing the hull to flex in this area and collapse slightly. I
> have checked the maintenance guides and cannot find any direct comments on
> this phenomenon. If anyone has had a similar experience with this issue I
> would appreciate your comments / solutions.

-- 
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   When I remember bygone days                         George Dinwiddie
   I think how evening follows morn;            gdinwiddie at alberg30.org
   So many I loved were not yet dead,           http://www.Alberg30.org
   So many I love were not yet born.
                'The Middle' by Ogden Nash
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