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Go Back   SailNet Community > Skills and Seamanship > Learning to Sail > Question about mainsail troubles.
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Thread: Question about mainsail troubles. Reply to Thread
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Topic Review (Newest First)
12-08-2011 12:29 PM
casey1999
Quote:
Originally Posted by smurphny View Post
If you can get the sail high enough so the boom clears the dodger...problem solved. I have a rugged cunningham on my main. It really helps a lot to move the belly of the sail forward when close hauled. In using the windvane (I see you have one too) it's critical to get the sails trimmed just right so the helm is balanced. The vane won't work if there's a lot of weather helm.
Ok, I will do some experimentation. Normally she balances very well, barley touch the helm and she tracks straight.
Regards
12-07-2011 09:28 PM
smurphny If you can get the sail high enough so the boom clears the dodger...problem solved. I have a rugged cunningham on my main. It really helps a lot to move the belly of the sail forward when close hauled. In using the windvane (I see you have one too) it's critical to get the sails trimmed just right so the helm is balanced. The vane won't work if there's a lot of weather helm.
12-07-2011 09:23 PM
casey1999
Quote:
Originally Posted by smurphny View Post
If you can get the sail higher, maybe it's supposed to be set high and then trimmed down with a downhaul. Being that the gooseneck has no track, that's probably the case. The use of a cunningham is a bit different in that it is usually placed astern the line of the luff so that the center of effort on the sail can be changed by tensioning. If you can get the loose-footed sail higher it should work. I didn't realize you had more room to raise it 6".
I do have a cunningham or using a line as a down haul will perform the same thing. I will try this as I can raise the sail an additional 6 inches or so before the top of the main will reach the top of the mast. I also have a vang which I think you are describing to use to change sail shape. I am not sure if the sail was cut wrong or made to have a loose tack and clew as I will try to rig. In any case I think I get get it to work on the cheap without major modification. Then the next sail I get as a replacement I will discuss options with the sail maker to get somthing that will work as designed.
Regards
12-07-2011 09:16 PM
smurphny
Quote:
Originally Posted by casey1999 View Post
Why not just modify the sail? Lifting the boom at the tack will not help as that will not shorten the leach of the sail. The leach of the sail appers too long. The last pic I posted was from PO and although it is hard to see, I believe the topping lift is what is holding the boom above the dodger. As mentioned the doger frame is original to the boat, so either I am rigging the sail wrong or the sail was cut wrong. I think if I do a loose tack I can solve the problem. I will rig a cunningham that will allow me to raise the main tack up about 6 inches and this will also pull the clew up about 6 inches which will clear the dodger.
If you can get the sail higher, maybe it's supposed to be set high and then trimmed down with a downhaul. Being that the gooseneck has no track, that's probably the case. The use of a cunningham is a bit different in that it is usually placed astern the line of the luff so that the center of effort on the sail can be changed by tensioning. If you can get the loose-footed sail higher it should work. I didn't realize you had more room to raise it 6".
12-07-2011 05:29 PM
casey1999
Quote:
Originally Posted by luck66 View Post
Now i've got a good picture, as I see it the problem is not the sail it is the dodger. changing the sail is not going to help much, lower the dodger or lift the boom at the tack.
Why not just modify the sail? Lifting the boom at the tack will not help as that will not shorten the leach of the sail. The leach of the sail appers too long. The last pic I posted was from PO and although it is hard to see, I believe the topping lift is what is holding the boom above the dodger. As mentioned the doger frame is original to the boat, so either I am rigging the sail wrong or the sail was cut wrong. I think if I do a loose tack I can solve the problem. I will rig a cunningham that will allow me to raise the main tack up about 6 inches and this will also pull the clew up about 6 inches which will clear the dodger.
12-07-2011 05:20 PM
luck66 Now i've got a good picture, as I see it the problem is not the sail it is the dodger. changing the sail is not going to help much, lower the dodger or lift the boom at the tack.
12-07-2011 01:25 PM
casey1999
Quote:
Originally Posted by sailingfool View Post
I'm surprised you do not have the first reef run...I would think that would eb the most common setting you would need. IS there some story behind it being out of use? The third reef is really a trysail alternative, on my last boat I never used the third reef in ten years. Do you sail in conditions requiring it's use?
Sails actually got 4 reef points. I can rig the 1st easily if needed. I normally use the 2nd or 3rd. The 4th reef is try sail reef and not run, but could easily rig at sea if needed. Wind conditions on north shore oahu where I sail are normally not below 25 knots and can range up to 35 knots regularly when several miles off shore and the wind is wraping around the points of the island. At times the winds can be 4o knots or more. Since I am single handing most times, I sail fairly conservatively, but even with the main reefed and roller part way in, the boat esily makes hull speed of 7 knots and when running down wind with some surf can maintain 8-10 knots with no problem.
12-07-2011 08:58 AM
sailingfool I'm surprised you do not have the first reef run...I would think that would eb the most common setting you would need. IS there some story behind it being out of use? The third reef is really a trysail alternative, on my last boat I never used the third reef in ten years. Do you sail in conditions requiring it's use?
12-06-2011 11:49 PM
zz4gta
Quote:
Originally Posted by casey1999 View Post
As mentioned, not been able to contact Horizon Sails. What is a floating tack?
One that is not directly attached to the intersection of the boom and mast. Usually a lashing or velcro strap will be used to pull the tack forward and perform similar to a cunningham.
12-06-2011 05:20 PM
captflood GREETING EARTHLING , Get along to your hardwhere shop and get plexi-glass cut into stips of the correct size drill a couple of holes into the ends to tie em into the sleaves, go and get them worn out great stuff glad to be able to help even if I'm thousands of miles away oh tech is good when it works GO SAFE
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