Or are you missing any shackles on the backstay that could have been used as
spacers?  

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt,
Mike via CnC-List
Sent: Friday, May 12, 2017 7:40 AM
To: cnc-list@cnc-list.com
Cc: Hoyt, Mike <mike.h...@impgroup.com>
Subject: Re: Stus-List Backstay length and tension

 

Hi Dave

 

Is it possible that there is a mast step adjustment and the step has been
moved aft further than desired?

 

Have you tried running the main halyard aft and tightening the halyard?
Attaching it to an aft cleat or something very solid and then using the
halyard winch should help bring mast tip back.  I am not very familiar with
the rig on the 34+ but am assuming that like most of the pre Tartan C&Cs the
spreaders are not swept back.  Also .. a very dumb question .. do you have
any jib or spin halyards attached to any point forward of the mast?

 

Mike

Persistence

Halifax, NS 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of David
Knecht via CnC-List
Sent: Friday, May 12, 2017 9:05 AM
To: CnC CnC discussion list
Cc: David Knecht
Subject: Re: Stus-List Backstay length and tension

 

Dear listers- Thanks for all the advice and observations.  I actually worked
on it for a few hours yesterday afternoon and now I really don't know what
is going on.  I checked the mast with no backstay on and it still showed a
few inches of rake.  The forestay had a significant arc to it and felt very
loose.  I had previously taken most of the tension off the shrouds.  I tried
to pull one side of the split backstay and could not pull it far enough to
pin it.  I don't know how you could possibly do this with the adjuster
attached as there is no way to get it out of the way and near a neutral
position until both backstays are attached- so I took it off.  Then I let
off the mainsheet and vang, attached the halyard to the end of the boom and
cranked the boom down with the winch.  I looked at the forestay and it was
still very slack.  I loosened the shrouds more, but no change.  I still
could not pull it down enough to attach one side, let alone both.  So I
rigged a mini block and tackle between the U bolt and the turnbuckle and was
able to pull it down enough and hold it while I got the pin in.  With
another person there leaning on the wire, I might have been able to do it
without the block and tackle, but since the boat is in the water, it is hard
to get in position to pull on the wire and put the pin in at the same time.
I ran out of time to try the other side, but it seems like something is not
right with the rig if it is this hard.  I have not changed anything related
to this since I bought the boat, so I find this very confusing.  I doubt C&C
designed it to be this hard and there would be no reason to since you could
just make the backstay longer.  One other thing for those who have other C&C
designs.  Unlike my previous 34, there are no deck level wood blocks to
adjust mast rake, nor any adjustment on the mast foot.  The mast goes
through a hole in the deck that is the size of the mast, so no rake
adjustment there.  

Anyway, I decided to contact a local rigger I have worked with to see if he
can help figure out what is going on.  I will report back when we have it
sorted out.  Thanks- Dave

 

On May 11, 2017, at 4:59 PM, robert <robertabb...@eastlink.ca
<mailto:robertabb...@eastlink.ca> > wrote:

 

David:

When my two back stay turn buckles are tensioned to where I like them, no
adjuster pulled on, there is approx. 2" showing on each one on the inside of
the turn buckle.....I thread both sides of each turn buckle equally.

When attaching to the back rail when stepping the mast, both are loosened
off approx. 1 1/2 inches of the 2" and they can be pinned no problem.

I take my adjuster off the back stay each Fall and put it back on the
Spring.....it is not put back on until I have the two back stay(s) on and
tensioned so the adjuster has no part in getting the back stay pinned.

I don't have a halyard attached to the back rail or anywhere.....I don't use
a halyard.....never have.....with the mast in the mast step, blocked at the
base, the mast shimed in the collar, the forestay on, the shrouds tensioned,
my mast isn't going anywhere.  A halyard is always added protection but I
will never use one.

Trusting this helps.

Rob Abbott
AZURA
C&C32 - 84
Halifax, N.S. 



On 2017-05-11 10:50 AM, David Knecht wrote:

They said was that there were only a few threads engaged on the turnbuckle
and they were leaving it to me to tighten it further.  I thought Josh's idea
to take tension off the backstay with the halyard makes a lot of sense.  I
will take a look at that today.  I know the backstay adjuster was mostly
loose as I had pushed it up with a pole this spring when I was playing with
shroud adjustment.  

1.  How much tension should there be with the adjuster up as far as it will
go without a pole pushing it.  Should there actually be slack to put the
pins back in with the turnbuckles loose but attached without taking tension
off with the halyard as Josh suggested? 

2.  I am presuming that it is safe to work on the rig with the backstay
detached (meaning the mast is still well supported by the deck, forestay and
shrouds)?

Thanks- Dave

    

Aries

1990 C&C 34+

New London, CT


<pastedGraphic.tiff>

 

On May 11, 2017, at 8:23 AM, robert <robertabb...@eastlink.ca
<mailto:robertabb...@eastlink.ca> > wrote:

 

David:

My boat has the same setup for a backstay.....split with an adjuster.....I
unstep and step my mast, however, I have no problem attaching the split
backstay which I am the one usually doing it.

I leave the turn buckle(s) attached and simply remove the split ring and pin
in the Fall and in the Spring, one at a time put the pin(s) in......and when
I do this, the forestay is always attached first for obvious reasons.....the
length of the forestay is 'set'......when the backstay is attached, the turn
buckles are tightened.

I can see where it would be difficult if the backstay turn buckles were
removed......then it becomes a two person job to attach them.....you really
need one person pulling back and down on the backstay and the second
threading the turn buckle....it can be done with one person but a lot
simpler with two.

Just curious, when the backstay is attached and tightened, how much 'thread'
is showing inside the turnbuckle?   Just wondering if your forestay is too
tight.

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

On 2017-05-10 11:34 PM, David Knecht via CnC-List wrote:

My boat has a split backstay with an adjuster that is pulled down with block
and tackle to pinch the split and increase tension (Is there a nautical name
I should know?).  My boat was splashed today and the yard crew complained
for the second year about the difficulty reattaching the backstay.  I don't
think previous yards even disconnected it, but something about their sling
and lift system means they have to come in with the sling from the rear with
no backstay.  I am pretty sure the mast has a slight backward rake, so I
can't see why the length of the backstay would be a problem, but apparently
even with the turnbuckles and adjuster loosened, they can barely get it
reattached.  I can't come up with a reason why they would have such a
problem and if it means that something is not right with the rig.  I will
check the rake again tomorrow now that the boat is floating and level, but
it has always had some amount of rake as measured by a weight hanging from
the main halyard.  Any thoughts on something I might be missing or is it
normal for that kind of backstay to have limited adjustability?  Thanks-
Dave

 

Aries

1990 C&C 34+

New London, CT


<pastedGraphic.tiff>

 





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Aries

1990 C&C 34+

New London, CT




 

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