RE: Nonsuch Running Rigging Lengths

[Doug Caldwell]

Some time ago I replaced all the running rigging on my Nonsuch. In preparation for the purchase, I consulted the spec sheet and found differences between the spec sheet and the actual line lengths. So I packed up ALL the lines and took them to the shop and bought same lengths. (Except for mainsheet which I lengthened by 20’.)

Doug.

 

Douglas Y. Caldwell

Toronto, Canada,

Nonsuch 30U #353, 1986

 

 

 

[bob jenkins]

Doug and others, I need to replace my mainsheet and I notice you added 20 ft to the replacement. My present sheet allows the boom to travel 90 degrees and i have often thought i could use more . However I guess at some point there is diminishing returns to go beyond 90 degrees--any idea what that point is ?

Bob Jenkins,
Good News 30U  #323
aurora on

---

From: dycal...@rogers.com
To: INA-Nonsuch-Di...@googlegroups.com
Subject: RE: Nonsuch Running Rigging Lengths
Date: Sun, 28 Jul 2013 20:42:19 -0400

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[John Newell]

I believe Bill Gates's Phoenix sets its yards at 30 degrees past the 90 degrees on a run.  At 90 degrees you have a barn door.  At 120 degrees you have a wing that creates a vacuum ahead of the sail that pulls you along.  That is why some people flying spinnakers cannot understand the performance of Nonsuches downwind.  We have a far more efficient rig when we are on a run compared to a spinnaker, that is a big barn door.

 

John Newell

Mascouche 26C 1

Toronto 

[Jim Cosgrove]

That's interesting.� On my 26 I would guess I set my wishbone at about 100 degrees on a run, because the sheet was long enough to allow me to do that and it seemed to minimize the chance for an accidental gybe.� I cannot do that on my current 30 because the mainsheet is too short.�� Anyone know what's optimal for a Nonsuch on a run?

Jim Cosgrove
FATE 30U #343
Galesville, MD


On 7/29/2013 1:02 PM, John Newell wrote:

I believe Bill Gates's Phoenix sets its yards at 30 degrees past the 90 degrees on a run.� At 90 degrees you have a barn door.� At 120 degrees you have a wing that creates a vacuum ahead of the sail that pulls you along.� That is why some people flying spinnakers cannot understand the performance of Nonsuches downwind.� We have a far more efficient rig when we are on a run compared to a spinnaker, that is a big barn door.

�

John Newell

Mascouche 26C 1

Toronto�

[matthewsjon66]

I replaced my sheet last year with 100’ of soft white nylon and am happy with the result (100’ seems enough for any conditions), but paying for an extra 5 or 10 feet which you can trim off in a year or two will not hurt you.  Picking too small a length can generate regret.

Cheers,

Jon Matthews EVENSONG 30U 266 Toronto

 

-----Original Message-----

From: Peter Grabow

Sent: Sunday, June 19, 2011 9:09 AM

Subject: Re: Mainsheet Length N30U

 

The last time I replaced my mainsheet, I added 15' to the manual's listed 90' to get 105'... I was tired of sailing downwind with the end of the sheet in my hand (but still having room to let out the main!)... much more 'mentally comfortable' with the added length.

 

From: Douglas Y. Caldwell

Sent: Saturday, June 18, 2011 11:08 PM

Subject: RE: Mainsheet Length N30U

 

When, after 25 years of use, I replaced my factory installed running rigging on year 1986 30U #353, I took all the lines, along with the data sheet from the owners’ manual to the chandlery. The staff promptly photocopied the data sheet for their files. I do not remember the details, but there was significant differences between the lengths on the data sheet and the lengths from the boat. I replaced all the lines with the lengths as from the boat, but added 20’ to the (main) sheet to permit ‘over square’ trimming which had not previously been possible.

 

From: Joe Valinoti

Sent: Sunday, June 19, 2011 9:11 AM

Subject: Re: Mainsheet Length N30U

 

I say 95' to give you a little extra at the bitter end.

==============================

 

From: bob jenkins

Sent: Monday, July 29, 2013 10:33 AM

To: INA-Nonsuch-Di...@googlegroups.com

Subject: RE: Nonsuch Running Rigging Lengths

 

Doug and others, I need to replace my mainsheet and I notice you added 20 ft to the replacement. My present sheet allows the boom to travel 90 degrees and i have often thought i could use more . However I guess at some point there is diminishing returns to go beyond 90 degrees--any idea what that point is ?

 

Bob Jenkins,

Good News 30U  #323

aurora on

 

 

[Doug Caldwell]

I have no idea what the critical measurement length is. I too had a maximum sheeting angle of about 90 degrees to the for/aft line of the boat. I added 20’ to the (main) sheet so as to have a farther forward boom, i.e. ’over square’ and therefore a safety margin, of sorts,  when sailing more or less straight down wind in light to moderate airs. In heavy airs, I do not sail dead downwind.