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Topic: rudder spin out |
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tasarhans |
Posted: 22-May-06 22:46 |
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Today we were sailing in 5-6 Bf with strong gusts.
Wow.... We are starting to get the boat planing faster every tiume and that's fun and makes life more easy...
Full planing makes the sheet tension going down, like the wind simply seems to stop blow... Being able to get the mainsheet in more and more (and fast !) ... That is real fun: the feel of flying... We even put the gennaker on and that was easier than expected... 
What we found out was when we were at speed (still trying to gear up) the rudder lost friction in the water.... kind of rudderless sailing. Long time ago I got the same feeling on an old windsurf board: air around the skeg and swimming.
What are we doing wrong??
Simply too much steering (which is possible because we are learning to anticipate on the gusts) or should I polish the blade... is it about wear on the rudder pins.... or simply live with it?? (Which is not so nice)
Never get back on the tasar.. What fun on the boat.
This weekend we saw some guys swimming with an I14 in about 4-5 Bf... Better sailing an Iso than swimming an I14 ) |
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Pete Lindley |
Posted: 23-May-06 11:19 |
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- Was the boat flat?
- When bearing away in the gusts, did you ease the main at all? (ONE ARMS LENGTH ONLY)
- Was the kite eased at all during the bear away?
"Full planing makes the sheet tension going down, like the wind simply seems to stop blow"
Remember this for when you start the old gybing games. No tension in the sheets / rig makes for easier and safer gybing.
Pete |
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tasarhans |
Posted: 23-May-06 13:53 |
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-Was the boat flat?
Yes complete, It seemed that that with every gust coming (heavy black shades on the surface) We didn't need to hike more.... it was like flying straight ahead halfwind no gennaker on. We were in a feeling of total balance... and then suddenly the feeling that the tiller was made of rubber.
It might be caused by the daggerboard... It has some chips and isnot not very well polished, generating air under the boat??
- When bearing away in the gusts, did you ease the main at all? (ONE ARMS LENGTH ONLY) no actually not much, I keep the mainsheet in hand all the time. when I look at the windex the wind comes from the front all the time so no need to ease the main I guess.
- Was the kite eased at all during the bear away?
Yes I think. Maarten tries to keep the curl in the gennaker all the time.
After the spin out and some swimming we did't put the genanker on The gusts became stronger and had plenty of sail without kite
I think it was the first time we sailed the ISo art full speed.. real fun (still grinning cheek to cheek) |
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Pete Lindley |
Posted: 23-May-06 18:09 |
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When bearing away in the gusts, I would advise you ease the main that one arms length just to assist in the bear away. Once born away, you pull it back in as you are correct in saying that the wind is from the front. It's all to do with boat balance and trim etc. You don't necessarily steer with the rudder - you mainly steer with boat balance & trim as well as sail trim.
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Dave ISO643 |
Posted: 17-Jul-06 15:14 |
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Weed around the rudder is likely to cause this. The ISO rudder so large spin out is not usually a problem. However if you get some weed around it near the top, the turbulence can cause air to be sucked down the leading edge. |
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tasarhans |
Posted: 18-Jul-06 10:33 |
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I have sanded my daggerboard... that improved some,
I also positioned the rudder blade more vertical... makes the boat easier on the rudder.
I haven't had it again since... |
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