[Public-List] Mast support problem and Bristol 32
George Dinwiddie
gdinwiddie at alberg30.org
Sun May 18 08:20:11 PDT 2008
MMasstransit at aol.com wrote:
> Thank you so much - actually it was a member of the Bristol list
> that suggested I get in touch with your list.
Certainly the Albergers have experience in repairing main beams. But we
lack knowledge of how the Bristol is constructed. On the Alberg 30
there are two different constructions.
On the older boats, the beam is an exposed laminated wood beam. The fix
for that involves sistering the beam with two aluminum plates bedded in
epoxy.
On the newer boats, the beam is aluminum hidden in the liner. The beam
doesn't sag, but the bulkheads rest on the liner instead of on the hull.
When the liner sags, so does the beam. The fix for this is to cut
access in the lower liner and glass in support to the hull.
There are sometimes also problems due to the fact that the mast is
off-center on the bulkhead, and people have added larger stiffening
support on the bulkhead. Sometimes the problem is just a rotten balsa
core, and recoring the deck under and aft of the mast takes care of the
dimpling problem.
I hope this helps. I'm not sure how much would apply to the Bristol 32.
- George
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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.
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