Hello fellow seers,
I'm getting this humming in the mast as soon as I have a little breeze while on
the mooring ball and it's really annoying. At first I thought it was a
generator or an engine sound propagated by water but I realized it's the
strings of this big violin that are singing. Any ide
Christian:
The 'humming' is probably coming from your shrouds. Since my boat is
currently about 300 yards away from your boat, we experience the same
weather (wind) conditions.
I tried loosening/tightening my shrouds a little but that didn't seem to
work. My final solution was to wrap each
A lot of boats sing at certain wind speeds
I believe it is caused by a phenomena known as "von Karman vortex shedding"You
will find it described in many fluid dynamics treatises.
Don WagnerC&C 41 CBDer Baron
G Donald Wagner
don.wag...@verizon.net
___
T
We looked into it when C&C 30’s were doing it when tied to the dock or slip.
Indeed those Von Karmen Vortices. The only real solution is/was to change the
‘frequency’ of the spar somehow. The simplest being tension some point on the
mast - maybe a simple as a tight spinnaker pole lift.
But
I had the exact same thing after taking down and putting the mast back up.
The previous owner said that the exact arrangement in which the shrouds
were attached made the difference. I'm not sure exactly what he meant, but
last year we took the rig down to transport via road, and evidently it was
pu
un...@cnc-list.com] On Behalf Of Christian
Tirtirau via CnC-List
Sent: Monday, July 25, 2016 10:04 AM
To: cnc-list@cnc-list.com
Cc: Christian Tirtirau
Subject: Stus-List Singing Rigging
Hello fellow seers,
I'm getting this humming in the mast as soon as I have a little breeze while
on the mooring
Sometimes even a clothespin on the shroud will prevent the harmonic hum.
Joel
On Mon, Jul 25, 2016 at 4:19 PM, William Hall via CnC-List <
cnc-list@cnc-list.com> wrote:
> I had the exact same thing after taking down and putting the mast back
> up. The previous owner said that the exact arrangem
c-list@cnc-list.com
Cc: Christian Tirtirau
Subject: Stus-List Singing Rigging
Hello fellow seers,
I'm getting this humming in the mast as soon as I have a little breeze while
on the mooring ball and it's really annoying. At first I thought it was a
generator or an engine sound propagated
m
Cc: Christian Tirtirau
Subject: Stus-List Singing Rigging
Hello fellow seers,
I'm getting this humming in the mast as soon as I have a little breeze while
on the mooring ball and it's really annoying. At first I thought it was a
generator or an engine sound propagated by water but I real
> Don Wagner
> C&C 41 CB
> Der Baron
> West River MD
>
>
>
> -Original Message- From: Christian Tirtirau via CnC-List
> Sent: Monday, July 25, 2016 11:04 AM
> To: cnc-list@cnc-list.com
> Cc: Christian Tirtirau
> Subject: Stus-List Singing Ri
I think what is happening is that either a shroud or a stay has hit resonant
frequency. I think that either tightening or loosing it will eliminate the
noise. Resonant frequency is the natural frequency of an object. This happens
to my wife when she gets mad at me and is wound up tight.
Frank
Is that why they call it "tuning the rigging"?
BernieEx C&C 25 #342Shopping for new boat
Original message
From: Franklin Schenk via CnC-List
Date: 07/25/2016 9:09 PM (GMT-05:00)
To: cnc-list@cnc-list.com
Cc: Franklin Schenk , Christian Tirtirau
Subject:
ures or drawings explaining this.
Cheers,
Bill L >>
-Original Message-
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Don
Wagner via CnC-List
Sent: Monday, July 25, 2016 8:08 PM
To: cnc-list@cnc-list.com
Cc: Don Wagner; Christian Tirtirau
Subject: Re: Stus-Lis
Ya gotta love it...
"lateral sinusoidal force"
David F. Risch
(401) 419-4650 (cell)
> To: cnc-list@cnc-list.com
> Date: Tue, 26 Jul 2016 10:26:34 -0400
> Subject: Re: Stus-List Singing Rigging
> From: cnc-list@cnc-list.com
> CC: colt...@verizon.net
>
> I happe
Thank you! This gets lots of tangential rig visuals of wind flow!
Don
Don Harben
Viking 34
Life
www.ncyc.ca
___
This list is supported by the generous donations of our members. If you like
what we do, please help us pay for our costs by donating. Al
I have been trying to silence our shrouds for years. Loosen, tighten, bind
them together, hold them apart...nothing works. I suspect I'm going to have
to pull the rig and start over to fix this, just like in our 29-2.
Jim Watts
Paradigm Shift
C&C 35 Mk III
Victoria, BC
On 26 July 2016 at 08:06, D
Jim –
Have you just tried singing along? . . .
Bill Coleman
C&C 39 Erie, PAanimated_favicon1
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts
via CnC-List
Sent: Tuesday, July 26, 2016 11:16 AM
To: 1 CnC List
Cc: Jim Watts
Subject: Re: Stus-List Sin
mp;C 39 Erie, PA[image: animated_favicon1]
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Jim
> Watts via CnC-List
> *Sent:* Tuesday, July 26, 2016 11:16 AM
> *To:* 1 CnC List
> *Cc:* Jim Watts
> *Subject:* Re: Stus-List Singing Rigging
>
>
So is it a high sea note...?
Sent from my Android. Please forgive typos. Thank you.
From: CnC-List on behalf of G Donald Wagner via
CnC-List
Sent: Saturday, June 20, 2020 6:46:41 PM
To: cnc-list@cnc-list.com
Cc: G Donald Wagner
Subject: Stus-List Singing
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