Tim:

The mast rake is approx. 8" and there is very little prebend....the mast on a C&C 32 really doesn't need much prebend.....I would have my sail maker take that into consideration if I were ordering a new main sail......I think the main sail I use was built with no prebend in mind.

I feel that the rig tension I sail our boat with is possibly a bit on the 'high' side but as I said earlier, I am now a 'lazy sailor' and don't have the patience to back off the shroud turnbuckles one full turn for a light air day or turning them on two full turns for a heavy air day.

The article by Greg Cutter on the C&C site pretty much sums up how I rig tune the C&C 32 except for going up the mast after leaving the dock to adjust the intermediates.....it took me two full seasons to figure out what tension I wanted on them....it turned out to be as complicated as this....."hand tight and then two full turns'. If my base cap shroud tension of 1,300 lbs. was less, say 1,100 to 1,200, I add another turn on the intermediates.

http://www.cncphotoalbum.com/doityourself/rod_rig_tuning.htm

Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S



On 2015-04-28 8:14 PM, Tim Goodyear wrote:
Robert,

I think the only things missing from your setup numbers are rake and pre-bend. Our forestay length is also very easy to adjust (not that I do often).

Thanks,

Tim


On Apr 28, 2015, at 4:01 PM, robert via CnC-List <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:

What Dwight is referencing is a race we did with a Kirby 25 and were embarrassed on the race course. And we were especially bad on starboard tack....we kept wondering all day what was wrong....almost blaming one another for our poor performance, e.g. you can't be pointing high enough, you can't have my sails trimmed. After the race, first we discovered the shroud turnbuckles were not pinned.....I thought they were because I thought I pinned them after I tensioned rig tension. Dwight discovered by applying Pythagorean's theorem that the top of the mast was out of column by 18" to port. Any wonder why the boat was not performing the way it/we previously did.

That never happened a second time!

The 32's rig is set at cap shrouds 1,300 lbs., lowers 1,200, intermediates 500 lbs., backstay at rest 1,000 lbs., babystay 600 lbs......haven't measured the headstay tension but it is about 4" to 6" bowed with a 135% under power. And since I stopped racing, I have become lazy and am just happy to have my mast in column and the rig not bending/stressing the boat, and go sailing almost every day during our sailing season..... averaged over 100 days per season for the last 5 years on AZURA....and that does not include a dozen or so sails each season on other people's boats.

Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.

On 2015-04-28 7:15 PM, dwight veinot wrote:
Robert

I think you might have learned the hard way about what rig tune means in that race we had with the K25 when we got whooped big time, especially on stbd tack...no good at all if the mast isn't plumb, right???

I am not sure if anyone can feel tension as accurately as the gage does it and the less expensive Loos gage for wire rigging ain't too bad either...i like it, at least it tells me stbd is the same tension as port but you have to use it right...everybody here, don't ever underestimate the importance of rig tune for performance, and that means perfromance as a function of expected wind strength and as wind strength varies so does optimum rig tension on these older boats, especially for pointing...y'all have to find out the hard way by experimenting with your own craft...a gage is essential for that experiment...Rob has the right gear for tuning rod rigging, he sets his rig up year after year for what works best on his 32, he doesn't race Azura so he doesn't vary his optimum rig tension for wind conditions all that ofeten, maybe a little more tension when the heavy fall winds hit here...no matter he likes what he got and that's OK until another 32 on the same point of sail blows him away...everyone is still learning, me, you and him too, get a gage and have some fun experimenting...watch you angle to apparent wind and your speed over ground on the GPS!!!

Dwight Veinot
C&C 35 MKII, */Alianna/*
Head of St. Margaret's Bay, NS
d.ve...@bellaliant.net <mailto:d.ve...@bellaliant.net>


On Tue, Apr 28, 2015 at 4:40 PM, robert via CnC-List <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:

    On everything up top on the standing rigging, I now use only SS
    cotter pins.....this is because on several occasions, and I can
    not explain how it happened, the split rings vanished.  Luckily,
    nothing fell down before the missing split ring was detected.  I
    have no explanation how the split rings disappeared but I do
    know that since being replaced with cotter pins, there has not
    been been a missing pin.

    The thread Subject is "rig tuning"......on that note I have rod
    rigging and a Loos RT10 tuning gauge is a must for me......I
    can't pull on shrouds and tell how much tension is there.  Now
    someone will chime in and tell me to measure my threads in the
    turnbuckles.  But how do you initially do that without a
    reference point with the benefit of a gauge.

    When we were campaigning our Kirby 25, we made rig adjustments
    depending on the conditions.  We still used a Loos gauge to take
    the guessing out of the equation.

    I shouldn't admit this but I will.....on my shroud turnbuckles,
    I use the small plastic pull/lock strings (or whatever they are
    called).  Once I get my rig tuned early in the Spring after a
    few sails, it stays that way all season unless I adjust it after
    periodic checking with the Loos gauge and sighting the mast, of
    course.

    Rob Abbott
    AZURA
    C&C 32 - 84
    Halifax, N.S.

    With the cover just removed and no launch date set yet.




    On 2015-04-28 2:02 PM, Joel Aronson via CnC-List wrote:
    Tim,

    How often do you make adjustments?  Do you have a tension gauge
    for rod rigging?

    Joel

    On Tue, Apr 28, 2015 at 12:57 PM, Tim Goodyear via CnC-List
    <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:

        I got those (wrap pins) last year - and am very happy with
        them - no sharp edges, no messing around with rigging tape
        to make adjustments.

        Tim
        Mojito
        C&C 35-3
        Branford, CT

        On Tue, Apr 28, 2015 at 9:03 AM, Josh Muckley via CnC-List
        <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:

            Might give these a try too.

            
http://www.defender.com/product3.jsp?path=-1|10918|2303303|2303306&id=2546248
            
<http://www.defender.com/product3.jsp?path=-1%7C10918%7C2303303%7C2303306&id=2546248>

            On Apr 28, 2015 9:48 AM, "Pete Shelquist via CnC-List"
            <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>>
            wrote:

                A comment was made to me the other day that if an
                insurance company sees split rings at the rigs
                turnbuckles (vs cotter pins) that coverage will be
                null and void.  I found nothing in my policy
                stating this detail.

                Anyone else ever hear of this?

                Thanks,

                Pete


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-- Joel
    301 541 8551 <tel:301%20541%208551>


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