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Self Tacking Jib trim

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mopoulter View Drop Down
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    Posted: 16 March 2015 at 18:01
The snow is melting  and the ice too (Great Lakes froze over completely again this year!) so I am thinking about sailing again.  This has probably been asked before but the clew attachment points, how do they work?? Top one would tend to harden leech leaving a loose foot, bottom one would harden foot but perhaps tend to open up leech, right???? So you  can't get both  so the compromise is the middle ???  


mp

Hanse 370 #416

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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 16 March 2015 at 18:59
Depends on the cut of the sail
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mopoulter Quote  Post ReplyReply Direct Link To This Post Posted: 16 March 2015 at 19:20
Yes of course you are right did not cross my mind at the time of writing.
The one I have has an expanded roach requiring horizontal battens.
The so called "lapper" designed by the late Hans Fogh in Toronto.
 
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Hanse 370 #416

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Persse Quote  Post ReplyReply Direct Link To This Post Posted: 16 March 2015 at 22:33
On my self-tacker I place the clew higher for lighter conditions for a fuller sail shape and lower on the clew board for windier conditions.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2015 at 16:22
Mike, your comments on trim are correct. If the top part of the jib is trimmed in to much compared to the bottom, then move the sheet attachment down on the clue. This will ease the top and harden the bottom.
On the original 400 jib I've found that attaching the sheet to the second hole from the top gives the best trim when close hauled.


Edited by Rubato - 17 March 2015 at 16:24
Steve

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Post Options Post Options   Thanks (0) Thanks(0)   Quote silversailor Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2015 at 21:06
Mike, when do you use the "lapper"?
Silversailor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mopoulter Quote  Post ReplyReply Direct Link To This Post Posted: 19 March 2015 at 16:23
The lapper I have is a race sail (Pentex cloth) so I only use it when the wind is above 15 Knots true to about 25 then between 25 and 30 it is used with a reefed main.  Above 30 I use stock ST. If memory serves the lapper is about  225 sq feet.
In this high wind I cannot easily get it flat to go close hauled and I obviously am not going to mess around with clew attachment in this wind. Also the purchase on the coach house roof does not permit getting the sheet all the way in unless I luff up briefly so the sheet goes slack which permits me to grind it in; I then steer down. This may be partially due to low stretch line I use which seems to provide a lot of friction in the (tortured) path the sheet must use.  
But overall it is a very nice  sail IMHO
 
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Post Options Post Options   Thanks (1) Thanks(1)   Quote silversailor Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2015 at 12:25
Mike, what do you use below 15K? Soon after I began sailing my 370 in 2006 I realized that the original self tacker was not enough sail in the light winds that we experience on Lake Michigan.  At that time I was exclusively a cruiser so I added a high end dacron 135.  It's still my "go to" cruising sail.  AS I began racing I needed some more power below 10K of wind so added a 155, which we now use up to 15K, and then go to the 135 above 15K.
Silversailor
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mopoulter Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2015 at 13:54
I have high end 155 for 5-15 and a code 0 for very light wind . For distance races on Lake Huron the Code 0 is really fantastic. Last year in about 5 knots of wind and AWA about 50 I was seeing 6 knots of boat speed. We cruise with stock ST  but  I would like a 135 dacron but with a kid in university and another who ski races something has got to give and its dad's sail inventory!     
mp

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Post Options Post Options   Thanks (0) Thanks(0)   Quote silversailor Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2015 at 16:44
Mike, tell me about your Code 0.  Sailmaker? On furler? Flown from sprit?  Sprit reinforced?
Thanks,

Silversailor
South Haven, MI USA
S/V Legacy
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