[Rhodes22-list] Cabin floor warp

[Charles Nieman]

In addition to the carpentry skills I must comment on the great photography!

Sent from my iPhone

Charles 
s/v Blue Feather

On Apr 12, 2011, at 8:42 AM, KenBates <btskend at gmail.com> wrote:

> 
>   So.. Having determined hat the hull was a lot stiffer than i thought and
> probably not distorted, I lifted the 
> "Head" floor (after removing port berth) and found the main bulkhead that
> the single mast suport sets on
> has loose tabing,not a big suprise. Next i notice the 1x1 stringer across
> the back side of the bulkhead is bent in a smooth curve downward in the
> center! AHA! it dips about a half inch, the same amount that the stringers
> appear to be raised. the front bulhead transverse stringer is bent and
> broken, but since the mast suport post appeared to have pushed it down, it
> didnt suggest anything. More measurements and straight edge application 
> show that the main bulhead that the mast load rests on is bent, also causing
> other less 
> obvious curves and distortions. I wedged a "wonder bar" under the bulkhead
> and pushed causing the bulkhead to rise in the center. Jacking and wedging
> the center of the bulhead up a half inch flattens the floor,and opens the
> desired half inch gap between the bottom of the mast support post and the
> warped floor.and closes the gap between the bottom suport bulkhead and the
> "head" wall. Some sounds of distress and a piece of the bulkhead
> delaminating confirms that it has failed. 
>   I aquired a piece of three quarter marine ply and cut a piece matching
> the bottom main bulhead ending where the transverse stringer supporting the
> "Head " floor was located. this doubler piece was glued ans screwed to the
> bulkhead after injecting west system epoxy thickened with a bit of cabosil
> behind the tabbing. the screws capture the tabbing between the two
> pieces.Additional clamping was done by wedging
> dowls between the foreward bulkhead and the main. Another piece is glued and
> screwed to the front of the main bulkhead and capped with another piece
> tying the two stringers together and two the bulkhead
> corner braces were added and drilled to allow proper drainage (they will
> have to be checked for blockages periodically when inspecting the bilge) I
> also opened a hole in the tabbing under the main bulkhead alowing the area
> ahead of it to drain to the bilge, there were signs that water had sat there
> for some time, perhaps contibuting to the bulkhead failure.
>   When i raised the mast the first time, the rigging was not excessively
> tight, probably because the collapsing bulkhead relieved the pressur I must
> remeber to lengthen the stays as the cabine roof is about a half inch higher
> now.
>   Oh yes, I replaced the centerboard pendant while I was in there.
> and I am aware that I cant splell.
> Ken http://old.nabble.com/file/p31379294/jack.jpeg 
> http://old.nabble.com/file/p31379294/jack2.jpeg 
> http://old.nabble.com/file/p31379294/jack3.jpeg 
> http://old.nabble.com/file/p31379294/jack4.jpeg 
> http://old.nabble.com/file/p31379294/stringer.jpeg 
> http://old.nabble.com/file/p31379294/stringer2.jpg 
> 
> 
> -- 
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