Martin:
I can attest that the practices were not updated by 1973.
My boat has all kinds of nooks and crannies where water accumulates. One of
my pet peeves is that often the limber holes were not placed at the bottom
of the area being drained, but instead a half inch or so above (such as just
forward of the mast). As a result, the half inch or so of water doesnt
drain. I prior owner used Bondo to address this. However, I discovered
that water works its way in under the Bondo. I plan to remove all the Bondo
and level the various areas with West System. Another job on my long list.
Matt
C&C 42 Custom (1976 Bruckmann built)
From: Martin DeYoung <martin.deyo...@outlook.com>
Sent: Saturday, December 05, 2020 4:40 PM
To: Stus-List <cnc-list@cnc-list.com>
Subject: Stus-List Re: Calypso 1971 C&C 43 update
Joel,
I expect we experienced similar paths in restoring/repairing C&C designs
built by Bruckmann. The stick built interiors give both easy access for
water migration and for the repair work water migration makes necessary. I
have a declared value marine insurance policy to cover liability and some
hull losses but fully expect a tussle if I were to file a total loss claim.
One of the key failure modes we experienced was caused by water gaining
access to the channels created when the Bruckmann build team bonded
bulkheads to the hull. We found water** that pooled in the bilge forward of
the mast migrated across the bottom of several bulkheads and, over 40 years,
rotted the ¾ thick plywood up to 18 from the hull contact.
Did you find any evidence of water migration through the bulkhead channels
of the embedded 12v wires run through the deck balsa core? Maybe Bruckmanns
build practices were updated by 1973.
Martin DeYoung
Calypso
1971 C&C 43
Seattle/Port Ludlow
**Calypsos excess water forward of the bilge was cause by hull laminate
fractures likely caused by years of hard competition and excess use of
hydraulic backstay/babystay adjustors. When we first launched Calypso in
Seattle (after trucking out from Chicago) water seeped into the bilge space
forward of the mast step. We re-hauled the hull (the mast was out for
painting and new rigging) and started diagnosing the failure by chiseling
out the orange polyester bog filler and grinding off bottom paint. The
micro fractures became appearant most easily inside. We re-laminated the
hull in that area with epoxy, built up the well forward of the mast step,
and re-faired the hull.
Using as built drawings from C&C (from the museum I bought all available for
43s and some for the first few 60s) during Calypsos current restoration we
discovered 43 and 60 hulls after #1 and #2 were retrofitted or built with
extra reinforcement in this area. For Calypso we manufactured I beams
from G10 epoxy board and wood then glassed them to the hull from next to the
mast step forward past the babystays interior anchor point.
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10
From: Joel Delamirande <mailto:joel.delamira...@gmail.com>
Sent: Friday, December 4, 2020 8:14 AM
To: Stus-List <mailto:cnc-list@cnc-list.com>
Subject: Stus-List Re: Calypso 1971 C&C 43 update
Wow that amazing
It basically what I did to C&C 30 1973
People are amazed at the transformation
The hard part is to get the insurance to see it value comparing to market
value if you can find some
Thanks to all of the subscribers that contributed to the list to help with
the costs involved. If you want to show your support to the list - use
PayPal to send contribution -- https://www.paypal.me/stumurray Thanks -
Stu
--
Joel Delamirande
<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.jdroofing.ca&c=E,1,I
FfejjhfWoOm7Oz3elfcosYksTgseTdkoAAU08k0Ue_l9muNmXDrbZwf_gmAOtlu-pN8z8T4IlFUZ
BDga2rFcmAMHGRdvd7oIkSWRZ5kFk25l3I,&typo=1> www.jdroofing.ca
Thanks to all of the subscribers that contributed to the list to help with the
costs involved. If you want to show your support to the list - use PayPal to
send contribution -- https://www.paypal.me/stumurray Thanks - Stu
