[Rhodes22-list] Pointing

[Peter Thorn]

Hello Ed,

If you verify that you're able to point your R22 35 degrees off the true
wind, I certainly would like to visit Lake Hartwell to see that.   Perhaps
it's the apparent wind, the combination of the boat's velocity across the
bottom combined with the true wind direction, that's making you think you're
pointing so close. On a reasonably fast boat like R22, the apparent wind
angle can move quite a bit forward.  In an extreme example such as iceboats
(that travel many times the true windspeed) the wind indicator points almost
straight forward.

Are your headsail sheets led to tracks at the foot of the cabinhouse roof?
That, I think, would certainly improve pointing.

It's good to be aware of the difference between pointing and pinching.
Sailing too close to the wind can cause the underwater foils to slow down
then stall.  That's pinching.  When the keel, cb and rudder stop producing
lift, the boat will start to produce a lot of leeway, or sideways drift.  It
is very difficult to detect leeway when aboard the boat that's making all
the leeway.  The bow points higher, so the skipper might think he's pointing
pretty high because the sideslip is so hard to feel.  To avoid this
condition, foot off and keep the boat moving.  After regaining speed, head
up a little.

If you have a GPS you can verify your pointing angle by measuring your
heading (not the direction the bow is pointing), tack to the other tack,
measure heading again and divide the angle difference by 2.  I think someone
mentioned this not too long ago on the list.

I too have wondered about the diamond board, and would guess Phil Rhodes
original cb is pretty hard to improve on.   A while back Roger wrote a very
scientific sounding comparison, do you recall that?

Perhaps you Lake Hartwell guys should conduct on-the-water pointing trials
and settle the issue.

PT







----- Original Message ----- 
From: "ed kroposki" <ekroposki at charter.net>
To: "'The Rhodes 22 mail list'" <rhodes22-list at rhodes22.org>
Sent: Wednesday, September 22, 2004 8:21 PM
Subject: RE: [Rhodes22-list] Fred's pointing dog question


> Fred:
> Thank you for still not answering my question while asking another.
>
> Would it have been a question to which you do not know the answer?
>
> Nevertheless, I will answer your question and that is I do not know
> the real answer to that question.  I just look at who has trouble pointing
> to the wind.  By asking the question, from those willing to respond, I get
> more information on which to make an opinion.  I also learn ways to better
> point to the wind.
> I am not an experienced sailor.  I am a Saturday afternoon sailor
> who uses the wind to take him anywhere and nowhere in particular.
> That being said, if the wind is fresh, I believe that if scientific
> instruments were used, when I set up for the wind, I can point less the 45
> degrees mentioned on this list recently.  In fact, when I try, I think
that
> I can get closer to 35 degrees.
> However, that is just a wild-eyed guess based on my Windex.  Last
> Saturday with the wind gusting to knock down power, I could not get that,
> but at that point the Genny was outside at about 100% and I was on final
> approach to the Marina.
> And, if you read the post on this list you will learn how to push
> the envelope.
> Now tell us, does your dog point?
>
> Ed K
>
>
> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org
> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of
> SVGravityLeak at aol.com
> Sent: Wednesday, September 22, 2004 11:46 AM
> To: rhodes22-list at rhodes22.org
> Subject: Re: [Rhodes22-list] Fred's pointing
>
> Ed,
>
> I thought the diamond board was better because of the more forward weight
> distribution.
>
> Fred
>
> In a message dated 9/21/04 5:53:51 PM Eastern Daylight Time,
> ekroposki at charter.net writes:
>
> >
> >
> > Subject: RE: [Rhodes22-list]Fred's Hunter IMF
> >
> > Fred:
> >
> > Is it a secret?  Because I think that R22's with a centerboard like mine
> > point better than those with a diamond board.  But so far this just a
> guess
> > or opinion.  Now answer the question, pretty please.
> >
> > Ed K
> >
>
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