Re: Stus-List Baby stay vs Cunningham?

[Jim Reinardy via CnC-List]

Forgive my ignorance on this, but do your boats have a bendy mast?  My 30-2 has a baby stay with a 4:1 purchase, but I can't get much movement out of the rig with it at all.  We use the Cunningham quite a bit, but the baby stay is collecting dust.

Jim Reinardy 

C&C 30-2 "Firewater"

Milwaukee, WI

-------- Original Message --------
Subject: Re: Stus-List Baby stay vs Cunningham?
From: "Hoyt, Mike via CnC-List" <cnc-list@cnc-list.com>
Date: Fri, May 19, 2017 5:21 am
To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
Cc: "Hoyt, Mike" <mike.h...@impgroup.com>

Josh

 

You are correct.  Baby stay is designed to help with mast pumping.  A side effect may be that bending mast opens leech somewhat. Since babystay is usually only used in windy conditions opening the leech is not such a bad thing.

 

On fractionally rigged boats which most C&Cs and our Frers unfortunately are not backstay is ALL ABOUT main sail and really opens leech.  Has much less effect on forestay tension than on masthead boat. The C&C 115 was fractional (more or less) and had a really bendy mast.  The main was very easily shaped with all the controls.  Going to masthead rig on Frers after years of trimming main on Niagara 26, J27 and C&C 115 made the main seem awkward and clunky for quite some time.  It is a lot more work to trim it effectively (IMO)

 

Back to our original point.  Opening or closing leech is a major tool in trimming main sail.  A tight sheet and vang does close the leech but wind it is usually bending mast that is a tool used to open leech vs in light wind

 

Mike

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley via CnC-List
Sent: Thursday, May 18, 2017 4:39 PM
To: C&C List
Cc: Josh Muckley
Subject: Re: Stus-List Baby stay vs Cunningham?

 

Mike I believe you are correct but isn't that simply a side effect?  Leech tension and sail twist should be controlled by the mail sheet and vang.  In fact I think the opening of the leech is experienced more with changes in backstay tension as a result of changing the position of the masthead.

 

Correct me if I'm wrong but I think that your statement is metaphorically equivalent to saying, "The backstay controls main sheet tension."  True the backstay can affect main sheet tension, but that's not its purpose.  Likewise, bending the mast can open the leech but that's not its purpose and the components designed to control the leech (vang and mainsheet) are still available to "close" it.  Kind of a does the tail wag the dog situation.

 

Josh Muckley

S/V Sea Hawk

1989 C&C 37+

Solomons, MD

 

 

 

On May 18, 2017 9:00 AM, "Hoyt, Mike via CnC-List" <cnc-list@cnc-list.com> wrote:

And bending mast would also open leech

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley via CnC-List
Sent: Thursday, May 18, 2017 9:52 AM
To: cnc-list@cnc-list.com
Cc: Josh Muckley
Subject: Re: Stus-List Baby stay vs Cunningham?

 

Cunningham does flatten the sail but simply due to luff tension.

If a baby stay is able to pull the belly of the mast forward then the luff is also pulled forward and the resulting shape of the sail is flatter.

Josh

 

On Thu, May 18, 2017, 8:18 AM Hoyt, Mike via CnC-List <cnc-list@cnc-list.com> wrote:

Doesn't the cunngham assist the halyard in moving draft forward?

-----Original Message-----
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Dave S via CnC-List
Sent: Wednesday, May 17, 2017 10:43 PM
To: C&c Stus List
Cc: Dave S
Subject: Stus-List Baby stay vs Cunningham?

Both depower the main....  Does the adjustable baby stay (mast bend) make the Cunningham (luff tension) redundant?
I have an adjustable baby stay, is adding a Cunningham a waste of time?

Thanks , Dave
33-2

Sent from my iPhone
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_______________________________________________

This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to:  https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

_______________________________________________

This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to:  https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

 

---

_______________________________________________

This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray

All Contributions are greatly appreciated!

_______________________________________________

This list is supported by the generous donations of our members. If you wish to 
make a contribution to offset our costs, please go to:  
https://www.paypal.me/stumurray

All Contributions are greatly appreciated!