[Rhodes22-list] Cabin floor warp

[Caesar Paul]

Ken,
Looks like a job well done.  You do have some skills.
Caesar Paul



________________________________
From: KenBates <btskend at gmail.com>
To: rhodes22-list at rhodes22.org
Sent: Tue, April 12, 2011 6:42:23 AM
Subject: Re: [Rhodes22-list] Cabin floor warp


  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 


-- 
View this message in context: 
http://old.nabble.com/Cabin-floor-warp-tp31371371p31379294.html
Sent from the Rhodes 22 mailing list archive at Nabble.com.

__________________________________________________
To subscribe/unsubscribe go to 
http://www.rhodes22.org/mailman/listinfo/rhodes22-list

For the list Charter and help with using the mailing list and archives go to 
http://www.rhodes22.org/list
__________________________________________________