t 02, 2015 1:17 PM
To: cnc-list@cnc-list.com
Cc: Leslie Paal
Subject: Re: Stus-List Howling rigging
https://en.wikipedia.org/wiki/Theodore_von_K%C3%A1rm%C3%A1n
von Karman was Hungarian. I spent many hours in an auditorium named after
him at JPL.
Le
https://en.wikipedia.org/wiki/Theodore_von_K%C3%A1rm%C3%A1n
von Karman was Hungarian. I spent many hours in an auditorium named after him
at JPL.
Leslie.
On Sat, 8/1/15, Don Wagner via CnC-List wrote:
Subject: Re: Stus-List Howling rigging
To
I bought a 33 MK II in Toronto last fall and there was a loud hum. The hum was
there on Toronto Island where I pick her up and at a marina on the mainland. I
asked the owner about it and he said "I have never heard that before" and I
thought what have I just bought myself.
When I launched her in
I had the same problem with our 29. I never got rid of the noise until I
pulled the mast and retuned the whole rig...never heard it again.
I have tried velcro wraps on the shrouds and that used to work to some
extent but no longer. I'll try the fender up the mast and the halyard wrap
ideas and see
Jim I had this happen recently. Mast was in and out last fall for repairs. I
just put it down to Brent Jacoby really “tuning” the rig – certain wind speed
and angle gives a nice steady hum (maybe C sharp). Noticed it again yesterday
in a light breeze at the Club for a short while. When it bugge
cnc-list@cnc-list.com
Cc: Joel Aronson
Subject: Re: Stus-List Howling rigging
Had a similar hum while coming back from Newport. The engineer on board put a
clothes pin on the shroud to change the harmonics. Worked for several hours.
Joel
On Saturday, August 1, 2015, Russ & Melody via
Had a similar hum while coming back from Newport. The engineer on board
put a clothes pin on the shroud to change the harmonics. Worked for several
hours.
Joel
On Saturday, August 1, 2015, Russ & Melody via CnC-List <
cnc-list@cnc-list.com> wrote:
>
> Don't listen to him, Jim. I can tell he's
Don't listen to him, Jim. I can tell he's just
making things up. The name was Peat and we don't
have pints of rum... maybe a litre or two.
And to settle the ghost, try hoisting a fender
alongside the mast about half way up. You will be
amazed how it can settle the rig if you have
oscillat
It’s just like a blown muffler on your car. You need a bigger stereo.
Rich Knowles
Nanaimo, BC
INDIGO LF38
Boatless!
On Jul 31, 2015, at 19:26, Jim Watts via CnC-List wrote:
On our latest trip north, we anchored in Clam Bay and had a strange problem. At
a certain wind speed, the shrouds wo
In your part of the world I would be wondering if Cascadia was getting warmed
up when things start to shake and vibrate. Of course a sailboat might not be
the worst place to be during the next mega-thrust tsunami.
Steve Thomas
C&C27 MKIII
Port Stanley, ON
- Original Message -
From:
Dennis, where the hell did you come up with that?
Jim Watts
Paradigm Shift
C&C 35 Mk III
Victoria, BC
On 31 July 2015 at 21:04, Dennis C. via CnC-List
wrote:
> It's the ghost of Penelakut Pete. He drowned in Clam Bay when he fell
> overboard after consuming a few pints of rum. Legend says he
I have experienced the same hum, rattle, and shake on 3 different C&C's over
many years of PNW sailing both t anchor and tied to pier. It is my best guess
that a cross wind of just the right angle and strength will create the
harmonics needed to rattle and shake the rig.
I have tried many di
It's the ghost of Penelakut Pete. He drowned in Clam Bay when he fell
overboard after consuming a few pints of rum. Legend says he only comes
out on breezy nights.
Dennis C.
Touche' 35-1 #83
Mandeville, LA
On Fri, Jul 31, 2015 at 9:26 PM, Jim Watts via CnC-List <
cnc-list@cnc-list.com> wrote:
I think there are supposed to be spacers or "insulators" where the rod
passes through the spreader. If you've lost one the rob can rattle.
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
On Jul 31, 2015 10:26 PM, "Jim Watts via CnC-List"
wrote:
> On our latest trip north, we anchored in Cl
*Rod can rattle
On Jul 31, 2015 10:59 PM, "Josh Muckley" wrote:
> I think there are supposed to be spacers or "insulators" where the rod
> passes through the spreader. If you've lost one the rob can rattle.
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
> On Jul 31, 2015 10:26 PM
Look up Tacoma Narrows bridge. It's not the wind speed but a frequency
oscillation of the wind that might excite the natural frequency of the rig.
Neil Schiller
1970 Redwing 35, Hull #7
(C&C 35, Mark I)
"Corsair"
Retired Mechanical Engineer
On 7/31/2015 10:26 PM, Jim Watts via CnC-List wrote:
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