Unfortunately, I’ve become somewhat of an expert myself.
From: JohnKelly Cuthbertson via CnC-List
Sent: Thursday, September 16, 2021 5:34 PM
To: Stus-List
Cc: JohnKelly Cuthbertson
Subject: Stus-List Re: Balsa core history
Rob Mazza is the expert in this specific topic
JK
Motion D
Great info and research; so, how did balsa go from "wonder" material to; "bad
stuff don't touch..."?
Richard
s/v Bushmark4; 1985 C&C 37 CB; Ohio River, Mile 584;
Richard N. Bush Law Offices
2950 Breckenridge Lane, Suite Nine
Louisville, Kentucky 40220-1462
502-584-7255
-Original M
There is no bad balsa. Only bad owners (or prior owners)
I think it is safe to say that pretty much all water saturation of balsa is
caused by poor bedding of fittings
From: Richard Bush via CnC-List
Sent: September 17, 2021 10:18 AM
To: cnc-list@cnc-list.com
Cc: cscheaf...@comcast.net; Richa
Time: I doubt anyone really thought through what balsa core would be like when
it was 50-60-70 or more years old. A lot of things can go wrong with a lot of
materials when past the half-century mark and headed towards 100.*
Bad Builders: Some builders, mostly NOT C&C, were or are infamous for do
Typo
Water migrates slowly through end-grain balsa but really tears foam up
From: Della Barba, Joe via CnC-List
Sent: Friday, September 17, 2021 10:18 AM
To: Stus-List
Cc: Della Barba, Joe
Subject: [EXTERNAL] Stus-List Re: Balsa core history
Time: I doubt anyone really thought through what bal
That is not a safe assumption. We did extensive repairs to the core below the
waterline on my Custom 42, including from the keel back and the keel forward.
Arguably, water in these areas resulted from failing to isolate thru-hulls and
the prop shaft strut. Two areas we did not consider, becau
Some fiberglass AIRPLANES have suffered from blistering and these are
landplanes, not flying boats sitting on a mooring. Even humid air can
eventually do it.
I am glad my 35 is a solid hull now she is headed for 50 years old. It would be
nice to have the stiffness and insulation of balsa, but I
That's a great story about Pearson starting the end grain orientation. I
wonder if that's 100% true. I'll bet several others would have thought of that
as well. Anyone who works with wood knows the compression strength is best
when wood grain is oriented that way. Honeycomb cores are end gra
Joe, thanks, that makes perfect sense to me!
Richard
s/v Bushmark4: 1985 C&C 37, Ohio River, Mile 584;
Richard N. Bush Law Offices
2950 Breckenridge Lane, Suite Nine
Louisville, Kentucky 40220-1462
502-584-7255
-Original Message-
From: Della Barba, Joe via CnC-List
To: Stus-List
Some of the new coring material (divinicell??) is supposed to address the
balsa/foam issues.
Anyone with specific knowledge??
Neil Andersen
Rock Hall, MD 21661
484-354-8800
From: CHARLES SCHEAFFER via CnC-List
Sent: Friday, September 17, 2021 10:39:29 AM
To: Stu
Coosa is an excellent product for a core. Expensive it worth every penny
Sent from my iPhone
> On Sep 17, 2021, at 11:55 AM, Neil Andersen via CnC-List
> wrote:
>
>
> Some of the new coring material (divinicell??) is supposed to address the
> balsa/foam issues.
>
> Anyone with specific k
Interesting conversation, and thank you for asking for my input. Apologies
for a late reply though, I've been up to my eyebrows, on behalf of the
Marine Museum, in organizing the upcoming Canadian Sailing Hall of Fame
Inductions on October 3rd in Kingston.
I started my career in the marine industr
Thanks Rob for your detailed response. I would love to learn more on the topic
if you can provide links to any of the testing or procedures described for
installing Baltek Balsa, I'd be most grateful.
My boatyard fiberglass guy works weekends fixing Sea Rays. Mostly problems
with brand new bo
Really interesting and thorough explanation. Thank you!
Sent from my iPhone
On Sep 17, 2021, at 1:07 PM, CHARLES SCHEAFFER via CnC-List
wrote:
Thanks Rob for your detailed response. I would love to learn more on the topic
if you can provide links to any of the testing or procedures describ
Yes that old foam is crap. The new Coosa
https://coosacomposites.com/the-coosa-advantage/ and equivalents do not soak up
water and are put together under tons of pressure.
From: Della Barba, Joe via CnC-List
Sent: September-17-21 11:21 AM
To: Stus-List
Cc: Della Barba, Joe
Subject: Stus-
Hey Stu,
Just a thought: having the virtual rendezvous is a great idea and its always
good to see who shows up for any number of random discussions about our boats,
but perhaps we’d get more interest if the meet up was a bit more focused, like
when John Kelly Cuthbertson was able to talk about
Sounds like a great idea, would probably put a little structure in the
discussion, and keep that part of it from meandering.
You know Chuck, when you come up with a great idea, you also get a job! . . .
Bill Coleman
Entrada, Erie, PA
From: Novabraid via CnC-List [mailto:cnc-list@
I’ll volunteer to lead the first one. Who wants to talk about rope?
Chuck
Sent from my iPhone
> On Sep 17, 2021, at 4:07 PM, Bill Coleman via CnC-List
> wrote:
>
>
> Sounds like a great idea, would probably put a little structure in the
> discussion, and keep that part of it from meanderin
All,
Much has been written about the problem of wet balsa when and if it
happens and I have seen many methods better and worse for deck repairs.
What I have not seen are examples of how people have gone about
repairing wet cored areas of the hull. Any pointers other than "forget
about it" wou
Matt can co-lead that discussion with Rob!
Bill Coleman
Entrada, Erie, PA
From: Steve Thomas via CnC-List [mailto:cnc-list@cnc-list.com]
Sent: Friday, September 17, 2021 4:35 PM
To: cnc-list@cnc-list.com
Cc: Steve Thomas
Subject: Stus-List Re: [EXTERNAL] Re: Balsa core history -
I senior member of our Yacht club has pretty much
abandoned his 1980 C&C 40. He is very motivated
to sell her but not willing to do much to get her
sold. She is not listed anywhere yet...
Cheetah was raced for years and has a decent
complement of both racing and cruising
sails. The westbr
I cut the outer fibreglass skin off with a rotary grinder. Nice straight
cuts and under the handrails after removing them. I found the bad spots by
tapping with a hammer. Get a dull thud on tapping probably a wet rotten
spot. Dig out all the rotten stuff let dry and fill in with new half inch
thic
Hi Steve,
I saw a detailed hull repair done on a C&C designed Northeast 39 a few years
back.
A hull repair is done the same way as a deck. Cutting below the waterline,
there are less fittings to work around, but the repair is upside down so vacuum
bagging would really improve the result, the
Hey Steve,
Found a guy who is replacing damaged core in his hull, but it's a huricane
damaged catamaran. YouTube channel, "Parley Revival"
Episode 94 and 95, 96 show some good techniques. You can fast forward through
the goofy parts. His videos are meant more to have fun, be funny, and
enter
24 matches
Mail list logo
