[Public-List] Pointing

[Mike Lehman]

Randy

I think you should be able to tack through 110 degrees or slightly less 
depending on wind strength and wave conditions. It is entirely possible to 
sail higher/faster on one tack than on the other. This generally means that 
your mast is not properly tuned and may be leaning to one side, instead 
straight up and down. First you should sight un the track of your mast to 
see if there is any bend, if there is you will see it at the spreaders. Then 
check to see if there is any bend aft, there should be a slight bend. Next 
check you mast for 'plumb'. Do this by taking the main halyard over to one 
side of the boat to the upper shroud turnbuckle and make note of where it 
touches the turnbuckle, then move it over to the other side and check it the 
same way. It should be the same on each side. If it is not then I would 
loosen everything and start over. You can attach a plumb bob to the halyard 
and hoist it to the top to check the mast fore-aft. The head should be 
directly over the base.

1. the mast should be 'plumb' - in other words the head of the mast should 
be directly over the base. adjust uppers only until this is achieved.
2. tighten the upper shrouds until you arrive at a moderate tension (see 
tension chart).
3. begin to tighten the forward lowers equally on each side until you pull 
the mast forward a couple of inches at the spreaders. (sight up frequently 
to check this)
4. Once the forwards lowers are tight (they are the highest tension shrouds 
on the boat), then just take up the slop on the aft lowers, do not tension 
then.
5. Go sailing, sighting up the mast on various points of sail and make 
adjustments as necessary...always tighten/loosen both sides equally

The tension chart is on the website. You will see there is a huge difference 
from one boat to the next (racing vs. cruising). I would use the setting 
shown for US17 since she was sailed by a rigger and performed consistently 
well on the race course.

http://alberg30.org/maintenance/SparsSailsRigging/tensions.html

Sorry for the long email

Mike Lehman
~~~_/)_/)~~_/)~~~


-----Original Message----- 
From: Randy Katz
Sent: Sunday, January 29, 2012 10:08 PM
To: public-list at lists.alberg30.org
Subject: Re: [Public-List] Pointing

Greetings, Fellow Sailors,

     I ALSO have had this problem much of the time and been mystified and
aggravated by it. I have similar sails as Larry and a clean bottom. Sails
are actually both new from North, measured on the boat by them. I'd be
amazed if the forestay were the wrong length, but it's possible-- it was
replaced before I bought the boat.
   And-- is it possible that I could be sailing faster and pointing better
on one tack than another? How?

   My knowledge is at an intermediate level, I'd say, so there are no doubt
many possible subtleties I've been overlooking. I'm looking fwd to hearing
some thoughts on this topic!

Thanks,
Randy Katz
#249 Bellingham/Seattle


>   1. Re: Pointing (Lawrence Morris)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 29 Jan 2012 10:05:09 -0500
> From: Lawrence Morris <morris.lc at verizon.net>
> To: Alberg 30 Public List -- open to all
>        <public-list at lists.alberg30.org>
> Subject: Re: [Public-List] Pointing
> Message-ID: <7A89E013-B307-4FE2-A758-F991FF94E836 at verizon.net>
> Content-Type: text/plain; charset=us-ascii
>
> Check the rig settings
>
> I would check the headstay length. It sounds like it may be to short. How
> is the balance on the boat?
>
> If you contact  Read Beigel he can give you the specific dimensions and
> methods for tuning the rig.
>
> You mention the draft is at 35%, how deep is the draft. This maybe an
> issue also.  If your head sail has a deep draft. Then I would try to 
> adjust
> to move the draft back to the 45 % range to try to flatten the entry.
>
> Also, the number one performance item is:  Clean Bottom!  CLEAN
> BOTTOM!!!!!!  Scrub the bottom before every race and you will a huge
> performance difference. Guaranteed!!!
>
> Sent from my iPhone
>
> Larry Morris
>
> On Jan 28, 2012, at 12:45 PM, thomascwcj <thomascwcj at bellsouth.net> wrote:
>
> > I'm practicing to improve my performance in this year's PHRF races. I'd
> appreciate some advice on sail trim (or anything else) for improving the
> windward leg. The best I can manage is a tack through 130 degrees, and 
> that
> doesn't seem right. I normally use a #2 (150%) headsail (roller furling)
> sheeted in so that all telltales are flying and the sail is 1" off the
> spreader, when full. The main is trimmed  slightly off center to the
> leeward side with the top telltale flying. The draft on both sail is at
> about 35%. The main halyard, boom vang and outhaul are just snug for
> moderate conditions. Thanks.
> >
> > Chuck Thomas
> > Resolute #525
>
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