Alan is absolutely correct.More importantly you need telltales on the genoa and main. I don't know who would be interested in air flow at the shrouds (either upper or lower). Both the helm and trimmers need to watch headsail telltales to drive the boat. A set of luff telltales up the headsail are a good indicator of wind sheer.
I'm not Dan... but he attaches the cassette tape to the bread bag closers, then snaps them on the wire which allows them to rotate, rather than wrap around the shroud. You'll have to wrap some tape around the wire to keep them from sliding down."...on the boat I race we made tell-tales from those plastic bread bag closures ..."
Dan, can you explain this further? I also use cassette tape, but it is tied to the shrouds and only to give me an indication of wind direction and strength. How do you use the bread bag closures? Thanks!
Joe...If they're on the shrouds, you can't really call them tell tales. They don't really tell you anything about airflow over the sails.... just wind direction at that point. I have some with little wind vanes, called Davis Wind-Tels, I bought at SD Sailing Supply that fit on the shrouds... I really like them because they are in the same line of sight I'm looking at when checking the jib telltales..... Especially handy when broad reaching where I can try to keep them at 90 deg.
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You will never get anywhere near good performance without telltales on your sails. Fulness and luffing only tells you about 20% of how the wind is flowing over the sails. Try putting some on and you will see a big difference in your speed. I'm not talking about racing speed, just a good cruising speed.wind direction and strength are all we are looking for--the movement of the air over the sails is told by the fullness and luffing.....we just want to know wherefrom is coming the wind.....
if 10 kts isnt good performance then i donot want performance---we have plenty fine performance without placing telltales where i was always taught never to place them LOL--i was taught to place them on the shrouds or stays as they will tell you what you want to know--from where come the winds.....lol---and if there is enough wind to fill a sail.. i will continue to place them where they belong--on the stays, as that is EXACTLY what i want to know--i watch my sails and i know where the wind goes on and in them----this is only one of the points upon which the folks who learned sailing in schools and under yacht club supervision disagree with those of us who learned the old fashioned way---and will always be a point upon which we choose to disagree......smoooth sailing----You will never get anywhere near good performance without telltales on your sails. Fulness and luffing only tells you about 20% of how the wind is flowing over the sails. Try putting some on and you will see a big difference in your speed. I'm not talking about racing speed, just a good cruising speed.
ROFLMAO...some folks do not NEED to have stuffies placed in places they were taught to keep clean of stuffies----there ARE folks with a good feel for wind and current and do not NEED to use things to allegedly help performance----and i suppose you DISAGREE that 10 kts forward momentum for a 7 kt rated hull is not good performance----telltales are a tool useable for telling wind direction. some racers like to use them in a fashion they were not originally intended. is alll goood.....place-able anywhere the skipper of the boat WANTS them placed.....some folks just don't want to know, I guess.
Joe...
I've been using the Davis tells for years on several different boats, in spite of the eye-rolling glances I frequently get from the racer-types. I also have a masthead Windex and tell-tales on the jib and main.
The Davis tells do make things easier on my old neck. I've also noticed that whilst on a beam reach or closer, if the leeward tell starts to get squirrely, it's usually an indication that I'm sailing too far off the wind for my sail set.
Nice to know someone else actually uses them!!!
Paul