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Member Since 17 Feb 2004
Offline Last Active Sep 15 2016 03:48 PM

Topics I've Started

Bulkhead repair

01 December 2014 - 02:28 AM

Im seeking advice regarding structural integrity of the forward main bulkhead.  Yes, this is the one that the chainplates attach to.


A design/construction problem 25 years ago, has manifested it's ugly head.  Water, as it would come down the mast via halyards, etc., would be funneled to the forward side of this bulkhead where it would pool and slowly cause the rot that I've detailed in the included sketch and photos.


This bulkhead was glassed to the aft side of a main stringer.  


My questions are the following:

  1. Has the bulkhead integrity and hull stiffness been compromised?


  2. Would new teak marine ply glassed back into the area with butt joints just above the bottom of the doorway passage be strong enough?


  3. In conjunction w/Teak marine ply, would adding 1/4" alum plate as indicated on the drawing, that is scarfed over good solid existing bulkhead sufficiently re-enforce the bulkhead?


I'm thinking I'd drill 1/8" random holes and really scuff up the alum plate to enhance bonding.  The alum plate would then be cosmetically covered with teak veneer to match existing.  Total thickness would not exceed existing bulkhead thickness (about 3/4")


Attached File  Main Bulkhead.jpg   161.9KB   159 downloads

Mast partners, best method?

08 October 2014 - 10:38 PM

I have a slight bit of movement at the mast partners.  


Currently, I have 2 large sections of hard rubber that are trimmed to slide up from below decks to chock the mast into place.  The rubber pieces are bout 3" x 8". One placed near the front of the mast, one placed near the rear.  I've found it nearly impossible to get these rubber chocks to stay wedged up into place.  Over time, one tends to slip down and then I get that slight bit of play.  The actual deck hole is tapered (smaller at the top) so I can't use spartite.


I'm considering removing the rubber chocks and making about 8 small wooden wedges out of either oak or teak that I could hammer up into place.  Once installed, I'd place a large hose clamp around the mast (under the wedges) such that the wedges could not slip out, and a second hose clamp around the mast and lowest part of the wedges.


I'm seeking advice on the best way to secure this deck stepped mast such that all energy is transferred to the deck and there's no movement.


Thanks in advance for any helpful advice,