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When to Gybe - Fast Asymmetric

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ellistine View Drop Down
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Post Options Post Options   Quote ellistine Quote  Post ReplyReply Direct Link To This Post Topic: When to Gybe - Fast Asymmetric
    Posted: 11 Sep 12 at 4:06pm
Starting to get the hang of the 800 lately but as always, as you get on top of the basics new problems arise.

At the weekend we had a great couple of windward/leeward races with the wind in the upper teens. Each time round however we gybed for the leeward mark at what looked about the right time (from a fairly long way out mind) and each time we would get headed and struggle to reach the mark invoking an early drop and a beam reach.

Now I appreciate it's probably the apparent wind kicking in and heading us down but what's the best way to maximise the apparent wind?  Put multiple gybes in to let the apparent knock you down as much as it likes at the expense of our slow gybes or carry on banging the downwind corner, attempting to compensate for wind/boat speed, picking that gybe time just right so you don't end up wasting the apparent wind header by constantly trying to get up to the mark?
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AlexM View Drop Down
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Post Options Post Options   Quote AlexM Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 4:32pm
Sounds like you just need more time in the boat to sort the laylines out at different wind strengths. I would say itís always better to go earlier than you think when itís windy so when you get over to the leeward mark youíve got enough room to bear away drop and make a good rounding which will save you more time in the end. With practice youíll get a feel of where the mark should be to judge the layline. E.g when itís windy and your looking from the helm position under boom you might gybe when the mark is in line with leeward shroud and when very light it could be in line with the mainsheet (just examples) but I think its all comes with practice :)
Hope this helps
Alex
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Post Options Post Options   Quote r2d2 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 4:39pm
at least you guys are managing to gybe when you want to! - in the 100 on Sunday in similar conditions I got hit by a big gust, bore away eased the genny bore away some more, forgot to ease the main, gybed the main twice, world went all wobbly and then swimming :-)) 

Edited by r2d2 - 11 Sep 12 at 4:41pm
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ellistine View Drop Down
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Post Options Post Options   Quote ellistine Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 4:45pm
Originally posted by r2d2

at least you guys are managing to gybe when you want to! - in the 100 on Sunday in similar conditions I got hit by a big gust, bore away eased the genny bore away some more forgot to ease the main and so gybed the main twice before swimming :-)) 
Good work! Generally we're not too bad on the gybes but I tend to come in early from the wire, check the lay lines then Gybe. At some point I'm going to have to man up and face the wire to wire gybe square on - which should make choosing the gybe point even harder, trying spot the mark through the main!
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 4:56pm
I think it's generally harder to spot the laylines down wind than on the beat, because the course you make varies with the wind speed. so it's often a mistake to try to bang the corners exactly. Better to budget on at least two gybes.
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AlexM View Drop Down
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Post Options Post Options   Quote AlexM Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 5:00pm
Originally posted by r2d2


at least you guys are managing to gybe when you want to! - in the 100 on Sunday in similar conditions I got hit by a big gust, bore away eased the genny bore away some more, forgot to ease the main, gybed the main twice, world went all wobbly and then swimming :-))†


I never adjust the main on a gybe. You need to be fully committed and give if a flick to encourage it to come over or you'll get the dreaded S's and the wobbles. It's easier with the baby rig

Alex
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Post Options Post Options   Quote r2d2 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 5:59pm
that's interesting - thanks Alex.  I was thinking that because I'd had the main and genny in before the gust hit when I then bore away the main gybed early because it was cleated fairly tight.  Anyway more practice needed :-))
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Post Options Post Options   Quote Rockhopper Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 5:59pm
When we used sail the 5000 we always used the bouy coming out the back of the boom to be the right time to gybe back across but i do agree with the others i also used to gybe in the gusts to keep the speed up so perhaps try that ?
Retired now after 35 seasons in a row and time for a rest
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 6:34pm
Strictly speaking I think your confusing your terminology, down wind you want to be on headers so you can bear off further and it is a lift that causes issues often being confused with a lull.

As to how you gauge it, same as upwind, tacking&gybing transits either pre determined with a practice beat/reach, or rough rule of buoy along boom if you have see through sails (although the danger of this is it varies according to apparent wind and windspeed), allowing room for manoeuvre, of course it always helps if you have a swinging pole if you've got it slightly wrong and have to soak a bit more.

We're lucky in that when it's breezy there's usually a friendly wave to help the gybe momentum so we don't lose to much speed and therefore angle, but it's always something you need to practise until you have the same sense as you do for laylines upwind...
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Post Options Post Options   Quote ellistine Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 12 at 6:45pm
Originally posted by G.R.F.

Strictly speaking I think your confusing your terminology, down wind you want to be on headers so you can bear off further and it is a lift that causes issues often being confused with a lull.
We are on headers. That's the trouble. We gybe for the mark, get a massive speed/apparent header and up having to 'fetch' the mark when I was expecting a good angle in. 
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