[C320-list] 130 jib sheet track placement

[Rick Smith]

Team Layla agrees with Mark's approach to car positioning.  Will add just a 
general rule of thumb for us: car positioning depends largely on wind 
strength -- generally the brisker the wind, the further aft we position the 
car (flattens/depowers the sail) and, conversely, the lighter the winds, the 
further forward we position the car (opens up the slot and provides more 
power).  We also use a "speed puck" and watch boat speed in search of the 
sweet spot -- which is tricky on Lake Lanier which boasts very shifty 
winds!)

Rick Smith
Layla #136
Lake Lanier, GA

-----Original Message----- 
From: Mark Cole
Sent: Monday, January 18, 2021 10:54 PM
To: C320-List at catalina320.com
Subject: Re: [C320-list] 130 jib sheet track placement

Sara;

I can’t tell you which hole to seat the turning block car in, but I can tell 
you how to figure it out on your boat.  As you move the car aft, say hole 3, 
you put more tension on the foot of the sail and the bottom half flattens 
out and upper half has less tension.  If you move the car forward, say hole 
8, you flatten the upper half of the sail and put more belly in the lower 
half.  To find the best spot, start with the car in hole 6, trim the sail 
close hauled and slowly turn the boat towards the wind.  Watch the upper and 
lower telltales - if the lower telltales break (flutter) first, move the car 
aft one hole.  If the upper telltales break first, move the car forward one 
hole.  If the wind is over a few knots, you will have to tack to adjust the 
car, so move the leeward car to the new hole before you tack and do the 
experiment again.  The goal is to get both sets of telltales, upper and 
lower, breaking at the same time as you slowly turn into the wind.

Mark
Fiddler’s Green #8

> On Jan 18, 2021, at 5:05 PM, JOE LUCIANO <jnluciano at comcast.net> wrote:
>
> Try about 9 or 10 from the stern end.  Too much angle on the sheet doesn't 
> pull hard enough vertically.....
>
> Joe
> Second Wind
> #1044
>
>> On 01/18/2021 4:50 PM Sara Schroeder Skinner <saras951 at comcast.net> 
>> wrote:
>>
>>
>> I have a new 130 and am experimenting with which track “button/rivet” you 
>> put the sliding car/block on.  The 130 has a smaller surface area at the 
>> head than my 150 did and I’m trying to find the sweet spot to where the 
>> top of the sail doesn’t flog.  Let’s assume we are counting from the 
>> stern of the boat. I have been putting the car on the third button/divet.
>> Sara
>> Wandering Star
>> #707/2000
>>
>> Sent from my iPhone