[Rhodes22-list] Sailing Upwind

[KUHN, LELAND]

Ben,

Glad to hear it worked.  I'm typically trying to make headway in heavier
winds but over the weekend I was trying to do so in about a five knot
wind.  I had the Genoa sheets run between the shrouds and the board down
but only seemed to be doing about 70 degrees into the wind.  I shifted
my weight to the leeward side of the boat to get more heel so the boat
would get into the groove and go faster.  I not only picked up speed but
significantly increased my windward performance.  It's probably common
sense for most sailors but it was another "Aha!" moment for me.

I'm still struggling with wind VMG (velocity made good).  I understand
the theory but don't know how you'd easily determine it without a GPS
with VMG functionality.  Too much into the wind and you're going too
slow and too much off the wind and you're going too far out of the way.
You'd think that reaching into the wind just before you start slowing
down would be best but that's not what the polar diagrams indicate.  Our
light displacement boats pick up so much speed when we come off the wind
that it seems like we must have a better VMG by having more speed.

I'm not sure but I think the apparent wind is the problem.  The faster
you go into the wind the more apparent wind you create which allows you
to go even faster, but the apparent wind also pushes you away from the
true wind.

>From the J/Boat website:  A J/120 sailing at 7.2 knots, 38 degrees off
the true wind (25 degrees apparent wind angle), makes good a velocity
(VMG) of 5.7 knots straight into the wind. This is 15% faster than a
boat doing 7 knots at a 45 degree true wind angle.

So I think with our boats we still make better VMG by slowing down into
the wind than by speeding up off the wind.  I just can't figure out how
much speed to sacrifice.

Maybe I just need to have fun, use the motor when I need it, and
fugetaboudit.

Lee
1986 Rhodes22  AT EASE
Kent Island, MD



-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of BenCittadino
Sent: Tuesday, August 24, 2010 11:45 AM
To: rhodes22-list at rhodes22.org
Subject: Re: [Rhodes22-list] Sailing Upwind


Stephen;

I just ran the sheets inside the outermost shrouds and brought them
through
the pulleys and winches on the gunwhales. I think I need some shroud
"guards" or "rollers" before I bring the Genny back past the mast by
that
route, but I was definitely surprised how much difference that seemingly
small adjustment made in upwind sailing.

BenC

Stephen Staum wrote:
> 
> Ben,
> 
> Did you go just inside the shrouds or to the inner track as well?
> 
> Stephen Staum
> 87 R22, Carol Lee
> 
> Sent from my iPhone
> 
> On Aug 23, 2010, at 6:55 PM, "Benjamin Cittadino"
<BCittadino at dcs-law.com 
>  > wrote:
> 
>> I had two days in a row on Sandy Hook Bay in NJ this weekend, and I  
>> want
>> to report that I had a pleasing experience by "finally" re-routing
the
>> Jib (175 Genny) sheets inside the outer shrouds to try for better  
>> upwind
>> sailing. I have to say that I didn't expect much difference, but I
was
>> delighted to get inside 45 degrees at last. I obviously didn't let
the
>> Genny out to the full 175, but at 100 we flew along and I felt like I
>> could make real headway upwind. I had delayed trying the new route
for
>> the sheets because I thought the sail would get all hung up in the
>> shrouds, but it's become no big deal. Try it, you'll like it.
>>
>>
>>
>> BenCittadino
>>
>> S/V Susan Kay ('93 recycled '08)
>>
>>
>>
>> PS-Could not connect to Nabble today??!!
>>
>>
>>
>>
>>
>>
>>
>>
>>
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