2005 Hunter 33. How can I make it sail downwind better? - Page 2 - SailNet Community
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post #11 of 18 Old 09-24-2011
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Quote:
Originally Posted by RichH View Post
Almost all boats, under normal conditions, will sail better down wind at about 135 deg. instead of 180 deg off the 'true' wind. Sailing dead downwind affords almost zero aerodynamic 'lift' to the sails, just drag. 'Tacking' down wind will keep the aerodynamic flow going 'across' the sails as well as increases the apparent wind simply by the increased speed of the boat.

Here"s about 24 other replies on the merits of NOT sailing dead downwind from a different sub-forum that solely discusses sail trim, etc. Trimming sails for downwind (confirmation) - SailboatOwners.com
All this above, add a spinnaker, and you're good.
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post #12 of 18 Old 09-25-2011
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While in theory knowing your polars and sailing your gybe angles is correct.
But if the rest of your fleet is sailing dead down w/ poles, going off on a flyer is a good strategy only if you are in the back of the pack.
Years ago at a hunter gathering on my wifes 375 at block island they held 2 days of windward leward canvas racing. The first day I had us sailing gybe angles downwind while the rest of the fleet sailed wing on wing w/ poles. They beat us to the leward mark every race. The second day we went wing on wing w/ a pole. No more problem.
All the canvas boats racing at our club sail the down wind leg wing on wing w/ a pole.
So I guess it depends on what you want to do. Be comfortable or get there first.
Also if you want to sail wing on wing invest in a boom brake and you won't worry about crash gybes anymore.
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post #13 of 18 Old 09-25-2011
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Wink I'll let you know how the 135 run goes tomorrow. Looks like 15 knots forecast. Last g

Try sailing north shore of Lake Ontario in December - great offshore winds, no traffic, bring the Grand Marnier
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post #14 of 18 Old 09-25-2011
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[QUOTE= Last great sunny day on Lake Ontario this season!!![/QUOTE]

Try sailing north shore of Lake Ontario in December - great offshore winds, no traffic, bring the Grand Marnier
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post #15 of 18 Old 09-25-2011
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I'm sure this comes up in the thread on the other forum, which I'm about to go look at, but if your destination's dead downwind, and you gybe at 135 angles to get there, you'll have to go more than 40% faster on your reaches than you would on a dead run.

I think the main restriction jeter it's that the op said, "without getting new sails," which I take to mean, "i don't have a spinnaker, in which case it's probably easy to sail 40% faster on a reach.

s/v Laelia - 1978 Pearson 365 ketch
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post #16 of 18 Old 09-25-2011
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Depending on the wind strength, you may or may not gain sufficient speed to make up the extra distance when you reach and gybe rather than run DDW. But unless you're racing, what's the rush?

DDW with severe spreader sweep is always going to be a mainsail chafe issue. We also have swept spreaders, but we will generally fly the kite to help move the apparent wind forward, and find it, like many others, much more comfortable to NOT be so close to an accidental gybe.

Personally, running wing and wing is my least favourite point of sail.
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post #17 of 18 Old 09-25-2011
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Quote:
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Personally, running wing and wing is my least favourite point of sail.
Moi aussi.

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post #18 of 18 Old 09-26-2011
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we beat a very well sailed H33 boat for boat in long downwind and reaching course of some 4 1/2 miles the other day. We were in a Harbor 20 day sailor. Both boats were close the entire time, so here is what I observed.

The wind was 8-12knts, seas mild.

The H33 seemed to want to sail fairly hot angles. She also simply died in the lulls. The boat seemed go need a lot of coordinated sail trim and helm trim to keep her moving. There was something on order of 6 people on board and most of them seemed to be working their bottoms off to keep up with us. They had a lot of trouble keeping wing on wing, but that ,ay have had to do with the angles we had to sail.

I'd recommend when sailing downwind, really working the 'up in the lulls, down in the puffs' mantra.
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