[Rhodes22-list] Too Windy--Now Centerboard Effect
Rick
sloopblueheron at gmail.com
Fri Jun 26 19:49:54 EDT 2009
I agree with Rummy. Shift the rum from storage on the starboard side to
your stomach so you go the same speed on both tacks.
Rick
On Fri, Jun 26, 2009 at 10:23 AM, <R22RumRunner at aol.com> wrote:
> STONE SOBER?????? Why bother even going out.
>
> Rummy
>
>
> In a message dated 6/26/2009 9:45:34 A.M. Eastern Daylight Time,
> LKUHN at cnmc.org writes:
>
>
> Last night I measured degrees to the wind with the Genoa both fully
> deployed
> and also furled to the shroud in what I'd thought were identical
> conditions.
> Can't say that I learned which points better but I did learn to quit
> measuring things.
>
> For all tacks: poptop and boom up, full main, no significant chop, speed
> of
> the current looked minimal, singlehandler with weight centered, tiller
> locked three degrees into the wind (see exception below), traveler
> centered,
> centerboard down, sheet lead blocks back to the winches, telltales flowing
> (not visible with reefed Genoa).
>
> Furled Genoa to outer shroud: 110 degree tack (pointing 55 degrees),
> speed
> 2.4 knots on starboard tack and 2.9 knots on port tack, apparent wind
> speed
> 7.8 knots for both. Mainsail remained the same on both tacks. The heel
> was
> less than 5 degrees on both tacks.
>
> 175% full Genoa: 120 degree tack (pointing 60 degrees), speed 3.8 knots
> on
> starboard tack and 2.2 knots on port tack, apparent wind speed 7.3 knots
> on
> starboard tack and 4.9 knots on port tack. For the starboard tack I
> needed
> to pull the mainsheet in tighter and move the tiller from 3 degrees into
> the
> wind to about 5 degrees off the wind to keep the telltales flowing
> properly.
> The heel on the port tack was about 5 degrees but the heel on the
> starboard
> tack was over 10.
>
> So what did I learn? Not exactly sure. Obviously the conditions or my
> description of the conditions were not consistent. From the huge variance
> in apparent wind it looks like the strength of the wind changed, but if it
> did I don't think it was by much. Per Rummy's comment about railmeat, the
> 135 lb. outboard with the extra Genoa caused the boat to heel more which
> caused the trim to the mainsail and tiller which all caused a speed
> increase. I'm guessing that the 60 degree pointing was more like 50
> degrees
> on the starboard tack and 70 degrees on the port tack, but who knows.
>
> I came off the wind to a close reach of about 75 degrees and raised the
> centerboard and speed immediately jumped to over 4 knots, which makes me
> think the wind speed may have increased some during my measuring.
>
> Any other theories are certainly welcome.
>
> By the way, it was a most excellent sail, which is all that matters.
>
> One other condition that I failed to mention was that I was stone sober.
>
> Lee
>
>
>
> Rick-139 wrote:
> >
> > David,
> >
> > Putting the meat and rum as far forward as it will go helps a lot.
> >
> > Rick
> >
> > On Thu, Jun 25, 2009 at 1:51 PM, David Culp <dculp at hsbtx.com> wrote:
> >
> >> Agree with Rummy... The 175 requires the right conditions and bodies.
> >> Still, for most people, I think it is the right sail to have on the
> >> furler if you have some rail meat. But, since I am always
> >> single-handed, I am dropping back to a 150 or 155% the next time
> >> around. The 175% stays rolled up on my boat too much of the time.
> >> However, my experience is that the boat will point higher with the
> >> 175% fully unfurled then it will reefed down to the the outer shroud.
> >>
> >> My best pointing/speed combination single-handed seems to be: Full
> >> main, boom lowered, genoa sheet inside the outer shroud and
> >> centerboard down. Also, traveler a little to windward if not
> >> over-powered. This would be in wind of about 12-15 kts. I estimate
> >> the angle to the wind at about 45 degrees... Might do better with a
> >> newer genoa sail and a luff tape. I have tried sheeting in to the
> >> inside cleats on the cabin top, maybe point a little closer but lose
> >> too much speed. In a big blow though, this might be useful.
> >>
> >> Anybody using a 150 or 155% genoa and know the dimensions?
> >>
> >> Thanks,
> >> David
> >>
> >>
> >>
> >>
> >> Date: Wed, 24 Jun 2009 11:44:58 EDT
> >> From: R22RumRunner at aol.com
> >> Subject: Re: [Rhodes22-list] too windy--Now Centeboard Effect
> >> To: rhodes22-list at rhodes22.org
> >> Message-ID: <d63.38baecb0.3773a3fa at aol.com>
> >> Content-Type: text/plain; charset="US-ASCII"
> >>
> >> Lee,
> >> As you have eluded to previously, there are a lot of factors that
> >> determine
> >> hull speed in the water. If you are single handed, the 175 can be way
> to
> >> much sail in a ten knot wind. However, with the same conditions and
> two
> >> additional bodies on the rail can make the 175 a real performance
> >> booster.
> >> It's all about balance, sail and weight.
> >>
> >> Rummy
> >>
> >>
> >> In a message dated 6/24/2009 11:09:03 A.M. Eastern Daylight Time,
> >> LKUHN at cnmc.org writes:
> >>
> >>
> >> Ben,
> >>
> >> The only time I can remember measuring performance into the wind I
> had
> >> the
> >> sheets run across the cabintop. 12 knot wind, boom & board down, full
> >> main,
> >> traveler centered, Genoa reefed to the inside shroud, tiller locked,
> >> choppy
> >> water. It's in the archives but I think I was going about 3.5 knots,
> >> which
> >> was fast for me on a close reach with that much wind--probably because
> >> the
> >> boat was sailing itself. I measured 45 degrees into the wind which
> >> leads
> >> me
> >> to believe that an experienced sailor could get upwards to 40 degrees
> on
> >> a
> >> close haul in the right conditions.
> >>
> >> I normally have the Genoa sheets ran outside the shrouds but I mostly
> >> sail
> >> on a close reach and I'd probably get faster performance with the
> sheets
> >> ran
> >> across the deck in between the shrouds. Unless I'm on a beam reach or
> >> more
> >> off the wind, it's rare that the full 175 decksweeper seems to add
> much
> >> speed.
> >>
> >> Switching the sheets to different leads is easy on the windward side
> >> with
> >> the poptop up. I haven't figured out how to comfortably do it yet
> with
> >> the
> >> poptop down unless I pull in all the sails.
> >>
> >> Lee
> >> __________________________________________________
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> >> http://www.rhodes22.org/list
> >> __________________________________________________
> >>
> > __________________________________________________
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> >
> >
>
> --
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> http://www.nabble.com/Re%3A-Too-Windy--Now-Centerboard-Effect-tp24208274p24220585.html
> Sent from the Rhodes 22 mailing list archive at Nabble.com.
>
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