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J24 (Sail No. 4239) Dartmouth |
Laurent Giles 'Jolly Boat' Exeter |
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Tell tales: where and why |
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Topic: Tell tales: where and why Posted: 09 Apr 19 at 9:01am |
I think most people have one on the jib luff, or main luff. That they use upwind when sheet on to test their heading and off-wind to get correct sheeting angle...
But moving beyond that... what other tell tales do you use? How many, where and for what reason? Do you have any rules of thumb for getting them positioned right? Do you use other visual guides like calibration, depth lines or sheeting lines? Any links to decent article or book on this? |
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 09 Apr 19 at 9:10am |
I have luff tell tales on my una-rig but never look at them.
I use tell tales on jib on my Mirror,that's it really. |
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cad99uk
Posting king Joined: 11 Mar 10 Location: United Kingdom Online Status: Offline Posts: 187 |
Post Options Quote Reply Posted: 09 Apr 19 at 9:18am |
Leech tell tales. A must have imho.
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davidyacht
Really should get out more Joined: 29 Mar 05 Online Status: Offline Posts: 1345 |
Post Options Quote Reply Posted: 09 Apr 19 at 9:34am |
Happily living in the past
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Sam.Spoons
Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3398 |
Post Options Quote Reply Posted: 09 Apr 19 at 10:14am |
Luff teltails on the Blaze mainsail and Spice jib and main. Telltails on the Blaze shrouds but not very useful in practice.
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Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish" |
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AlanH
Groupie Joined: 17 Apr 10 Location: Scotland Online Status: Offline Posts: 84 |
Post Options Quote Reply Posted: 09 Apr 19 at 10:19am |
I swear by a leech tell tale on the genoa, see the window on main for crew to view the tell tale. Leech tell tales good on main as well, esp on reaches. I have camber lines on some sails, but don't use them very much. I think North Sails have a Sail Trim series, possibly of 3 books, might be worth a look. Thanks to Graeme Pinkerton for pic.
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CT249
Far too distracted from work Joined: 08 Jul 06 Online Status: Offline Posts: 399 |
Post Options Quote Reply Posted: 09 Apr 19 at 10:47am |
Leach telltales are very important IMHO. In a surprising number of boats, in moderate winds you're at your best if they flick behind the mainsail leach half the time, but only for a second or two.
A couple of luff telltales on the jib for steering to; maybe three or four in a line along the luff, to judge twist. That'll do me.
Edited by CT249 - 09 Apr 19 at 10:47am |
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bustinben
Far too distracted from work Joined: 15 Oct 06 Online Status: Offline Posts: 288 |
Post Options Quote Reply Posted: 09 Apr 19 at 10:49am |
I stuck telltales all over my Laser sail to see what was going on.
What I discovered was so disconcerting that I quickly took them all off again! Flow is reversed in the back quarter of the sail on the leeward side in sub 8 knots It also showed me what the furthest forward point you can stick them is. My rule of thumb is as far forward as possible, but far back enough to avoid the turbulent flow caused by the mast. I've got one that is right on the edge of disturbed area, so in some wind strengths it never flies and for when that's happening I've got one a little bit further back. I also stick one in a similar position at the top of the rig for setting the kicker on reaches in up to overpowered conditions. It lets you know if the top of the rig is too loose and you need to pull some kicker on.
Edited by bustinben - 09 Apr 19 at 10:51am |
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Fatboi
Posting king Joined: 09 Aug 16 Location: Hampshire Online Status: Offline Posts: 189 |
Post Options Quote Reply Posted: 09 Apr 19 at 12:13pm |
Something written by Steve Cockerill I remember reading a while ago |
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iGRF
Really should get out more Joined: 07 Mar 11 Location: Hythe Online Status: Offline Posts: 6496 |
Post Options Quote Reply Posted: 09 Apr 19 at 12:19pm |
Found them really deceptive and disconcerting, when you set them so they look as they should according to all the manuals, you go really slow. (tried them years ago on a sailboard rig) never look at them these days, use the force, it's much more reliable.
Edited by iGRF - 09 Apr 19 at 12:34pm |
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