Other than having a spair sail, what's the logic of having a jib if you have a genoa on a furling system. Can't you just sheet the genoa in when you want less sail? Sam
With a Furling Genoa, Why Get a Jib?
- Thread starter Sam10429
- Start date
- Status
Genoa sail cloth weight
Yes you can shorten jib sail area with a roller furling but after the wind goes up the wind force goes up with the cube of the velocity and can blow out portions of the genoa with a lighter sail cloth, if use often, rather than putting up a smaller jib with a heaver sail cloth weight that won't streach as much with the bigger wind forces.
Yes you can shorten jib sail area with a roller furling but after the wind goes up the wind force goes up with the cube of the velocity and can blow out portions of the genoa with a lighter sail cloth, if use often, rather than putting up a smaller jib with a heaver sail cloth weight that won't streach as much with the bigger wind forces.
shape
Also, the shape of deeply-furled genoas generally sucks. If you have a 150% genoa, and you try to roll it up to be like a 100% jib, it will be really baggy. So just when you're trying to de-power your sailplan, you really aren't, because although your sail is smaller, the extra draft created by the bagging up of the center of the genoa actually increases power. You can't have it all, with any sailplan. With a furled genoa, you are sacrificing performance and weatherliness for some convenience.
Also, the shape of deeply-furled genoas generally sucks. If you have a 150% genoa, and you try to roll it up to be like a 100% jib, it will be really baggy. So just when you're trying to de-power your sailplan, you really aren't, because although your sail is smaller, the extra draft created by the bagging up of the center of the genoa actually increases power. You can't have it all, with any sailplan. With a furled genoa, you are sacrificing performance and weatherliness for some convenience.
trade off
When I bought my furler and had my genoa modified, I asked the same questions. My sailmaker said I could only effectively reduce my sail about 30%. I intended to have my jib modified also. The plan was to dtermine before leaving the slip, which sail to use. I have yet to need the jib and the money was best spent elsewhere for now. I did have the luff foam sewn in to my genny. I'm not sure if it helps or not having nothing to compare it to.
When I bought my furler and had my genoa modified, I asked the same questions. My sailmaker said I could only effectively reduce my sail about 30%. I intended to have my jib modified also. The plan was to dtermine before leaving the slip, which sail to use. I have yet to need the jib and the money was best spent elsewhere for now. I did have the luff foam sewn in to my genny. I'm not sure if it helps or not having nothing to compare it to.
no easy answer
There may be some furlers that make changing headsails easy but the CDI isn't one of them. Then again this may be as easy as it gets if you remember to think it through - You would need to remove the sail from the foil and feed the new one on. A sender line would have to be attached to the halyard before you remove the old sail so that you could hoist the new sail back up through the headsail block.
There may be some furlers that make changing headsails easy but the CDI isn't one of them. Then again this may be as easy as it gets if you remember to think it through - You would need to remove the sail from the foil and feed the new one on. A sender line would have to be attached to the halyard before you remove the old sail so that you could hoist the new sail back up through the headsail block.
Sail Plan Options
I would recommend everyone have a working jib, regardless of whether they have a Genoa. SeaQuell came with stock main and jib. Our first sail addition was a very lightly used 165% drifter. This gives us much better speed in light air on all points but close-hauled. Our next addition was a Schaeffer SnapFurl CF700 system, and we modified our stock jib with luff tape and Sunbrella UV strip. This allows us to adjust sail area very easily to suit conditions, improving comfort and speed with less effort than changing headsails. Our next addition will be a furling 135% Genoa. This will give us better pointing ability than our drifter in light air conditions. After that, we'll just replace old sails rather than adding to the inventory. When the drifter goes, we'll probably replace it with a cruising spinnaker after we have the furling 135% Genoa.
I would recommend everyone have a working jib, regardless of whether they have a Genoa. SeaQuell came with stock main and jib. Our first sail addition was a very lightly used 165% drifter. This gives us much better speed in light air on all points but close-hauled. Our next addition was a Schaeffer SnapFurl CF700 system, and we modified our stock jib with luff tape and Sunbrella UV strip. This allows us to adjust sail area very easily to suit conditions, improving comfort and speed with less effort than changing headsails. Our next addition will be a furling 135% Genoa. This will give us better pointing ability than our drifter in light air conditions. After that, we'll just replace old sails rather than adding to the inventory. When the drifter goes, we'll probably replace it with a cruising spinnaker after we have the furling 135% Genoa.
Two forward Stays?
I'm probably beating a dead horse here but I'm but a novice I guess... So do you have to have a the furler and another stay for a jib with hanks ? Seems like I saw a boat rigged for racing that had two forward stays...but I can't remember for sure.
I'm probably beating a dead horse here but I'm but a novice I guess... So do you have to have a the furler and another stay for a jib with hanks ? Seems like I saw a boat rigged for racing that had two forward stays...but I can't remember for sure.
if you want
I guess you could do it that way if you want. What most racers with furlers do is get a furler that has two slots. That way you can be setting one headsail while you're dousing the other. Ideally you'd also have two jib halyards to make this even quicker.
I guess you could do it that way if you want. What most racers with furlers do is get a furler that has two slots. That way you can be setting one headsail while you're dousing the other. Ideally you'd also have two jib halyards to make this even quicker.
The Furler Goes Over The Forestay....
..in most cases for a reefing furling system. The furling system comes with a foil that goes over the forestay. The foil has a slot in it. Then, you either modify your existing hanked on foresails or by new, that are equipped with a luff tape that slides up into the foil. Once the foil is installed over the forestay, you can't use hanked on forsails anymore. (One exception is the Simplicite furler made in Quebec.) If you have multiple foresails equipped with a luff tape, you change them just like you would a hank on sail; slide one down and then slide the other one up. An exception is the CDI furler that has an internal halyard. (The sail still has a luff tape that slides up and down the foil slot, but changing sails using an internal halyard is a little different.) A rare exception is a furler that has a foil with two luff slots. Then you have a small boat furler that doesn't reef (sail all in or all out, no in between) where the forestay is actually in the luff of the sail. (The foresail must be on to hold the mast up.)
..in most cases for a reefing furling system. The furling system comes with a foil that goes over the forestay. The foil has a slot in it. Then, you either modify your existing hanked on foresails or by new, that are equipped with a luff tape that slides up into the foil. Once the foil is installed over the forestay, you can't use hanked on forsails anymore. (One exception is the Simplicite furler made in Quebec.) If you have multiple foresails equipped with a luff tape, you change them just like you would a hank on sail; slide one down and then slide the other one up. An exception is the CDI furler that has an internal halyard. (The sail still has a luff tape that slides up and down the foil slot, but changing sails using an internal halyard is a little different.) A rare exception is a furler that has a foil with two luff slots. Then you have a small boat furler that doesn't reef (sail all in or all out, no in between) where the forestay is actually in the luff of the sail. (The foresail must be on to hold the mast up.)
- Status