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Can anyone tell me what these are for? They're located on the clew of my 2010 Doyle 150 Genee.



I'm stumped!
R.

Leach line. For removing the fluttering.

Edit: And apparently a foot line, too.

Tomfoolery wrote:Leach line. For removing the fluttering.

Edit: And apparently a foot line, too.

Wot?

Slacken it. Trim the sail to optimum. If the leach is fluttering a bit, take a little in to stop it, but no more than needed, as it tends to hook the leach over.

Bang on. There should be similar lines on the main sail leech as well.

I have had a bit of a problem with my leech curling over to windward, and have loosened these leech lines completely - even a bit of slack above each clip. It took most of the curl out.

There is no tension left in the leech lines however I still see a bit of curl on the leech of the sail. Is there anything else that affects the curl in the leech?

That,s ur G -String U silly boy , if u pull it too tight & u feel it pinching ease it off a little just enough too stop the flutter !! excessive use has been known to put an irreversible bend in the mast !
Not to be confused with a rooster ring which stiffens the mast !!

J

Something to try tinkering with next season I guess. I'm not sure why fluttering on the foot would be an issue but I'll give it a go.
Like mentioned, there is probably one on the Doyle mainsail which will also require attention.
G-string, G-spot, G-willikers!

Looks like string theory wins the day. So much for missing grey matter.

Crikey wrote:Like mentioned, there is probably one on the Doyle mainsail which will also require attention.

There should be two - one just above the clew, and one just above the reefing clew. They do help with flutter, but over-tightening will curl the leech (or roach, since it's got battens and a curved leech). Not that there's anything wrong with that, as I doubt the fluttering is helping efficiency either.

Highlander wrote:That,s ur G -String U silly boy , if u pull it too tight & u feel it pinching ease it off a little just enough too stop the flutter !! excessive use has been known to put an irreversible bend in the mast !
Not to be confused with a rooster ring which stiffens the mast !!

J

John.

Now that's just disturbing.

Tomfoolery wrote:

Highlander wrote:That,s ur G -String U silly boy , if u pull it too tight & u feel it pinching ease it off a little just enough too stop the flutter !! excessive use has been known to put an irreversible bend in the mast !
Not to be confused with a rooster ring which stiffens the mast !!

J

John.

Now that's just disturbing.

I know Tom , But when somebody like Ross puts something like that on the table I just could not resist ! ,I think he is putting it out there trolling like some other guy I know but wont mention !!

But I,m patiently waiting for that question " whats a R - Ring "

J

Crikey wrote:Something to try tinkering with next season I guess. I'm not sure why fluttering on the foot would be an issue but I'll give it a go.
Like mentioned, there is probably one on the Doyle mainsail which will also require attention.
G-string, G-spot, G-willikers!

Looks like string theory wins the day. So much for missing grey matter.

Was thinking afterwords the Rooster ring might be a little to big for ur lightly rigged boat , u might be better off with a Muffin ring ! , with my heavily re-enforced mast & big boom rigging set-up I moved up to a Crane ring !!

J

Thanks for your support guys (Dirko and Tomfoolery). I'll give it a shot next spring when everything's back on the water.

Ross

Ross they're really easy to adjust, as indicated just loose them and then re-tighten by pulling until the leech is no longer fluttering. In strong winds you may have to re-adjust, and then loosen because the adjustment for strong wind will cause cupping and a lower-period flapping because of that.

You don't want your leech fluttering as that's quite a bit of lost power. Mine have velcro, so you can adjust, cleat, and then velcro the cord in place so it won't unclear.

The curly cord ends are so you have extra line if ever needed.

I will try for the velcro solution next year. It always annoyed me that, try as I might, I couldn't totally take the flutter out of the Genoa by adjusting the sheet.

Thanks Matt!

The leech and foot cords don't have much effect on sail trim or shape. They are mainly there to control the fluttering on the leech/foot as this will quickly wear out the sail cloth on this part of the sail and soon you'll be repairing a torn leech.

If the leech line is completely loose and the leech of the sail is still curling, either the hoist of the sail is too loose (not enough halyard tension) or the sail cloth has stretched and is old. (meaning the sail is blown, or at least on it's way to being so)

Think of the shrunken bolt rope conversation, not long ago, and apply similar thinking to the leech. Only in this case the leech hasn't stretched as much as the rest of the sail, because it is double layer and sewn. (rather than being shrunk)

Does that make sense

Best Breezes,
Steve K.