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Go Back   SailNet Community > Skills and Seamanship > Seamanship & Navigation > Jib flapping in higher winds
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Thread: Jib flapping in higher winds Reply to Thread
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Topic Review (Newest First)
06-20-2011 09:47 AM
tomandchris Mark, that is also a question for a good SF area sailmaker that knows the bay. Really depends on what performance you want and what you are willing to do to get it. Also depends on what you want to invest.

Many SFBay sailors have a summer and a winter genoa. Your winds are heavier in the summer and less in the winter on average, and if they don't want to change headsails dependent on the days weather, the summer/winter is a compromise.
06-20-2011 01:33 AM
MarkSF Thanks, I will check the leech line, and the jib track adjustment. However I figured out the age of my sails, and it's at least 20 years. I'm thinking of getting a new main and jib. Now what size jib is the question.
06-19-2011 11:36 AM
WDS123 It sounds as if the entire foresail is shaking, nit just the leech, but good call - check the leech line and tension when leech is flapping.
06-19-2011 08:28 AM
TropicCat No one mentioned to check and see if the genny has a leech line. If so, tighten and see if it stops.
06-17-2011 12:26 PM
tomandchris Mark,

Not sure what you are sailing, but in any case a 150-160% genoa rolled to 100% is not going to give you any decent sail shape. It will also be very different dependent on point of sail because of the roll.

On SF Bay, in the winds that occur there, you probably need to invest in a smaller headsail. Talk to a sail maker that knows your boat and see what they suggest. It could be even smaller than a 100% dependent on your cruising plans.
06-17-2011 09:43 AM
jjablonowski Is the genoa equipped with luff foam? Mayhaps, when partially furled (reefed) without luff foam or luff rope, it's too baggy and thus hard to control.
06-16-2011 07:22 PM
chris_gee Wouldn't any headstay sag be the same on both tacks?
06-16-2011 10:35 AM
nolatom If you have the cars set right (as in the telltale example above) and it still "oscillates", then you may want to make sure you don't have too much headstay sag as Padean suggested above. That kind of oscillation will shake your whole rig, not a good thing.
06-15-2011 09:06 PM
sailingfool From yesterday's thread:
To set your jib lead position correctly, sailing closehauled, head up:
- if the upper windward telltale lifts first, move the block forward,
- if the lower windward telltale lifts first, move the block aft.

In light air you may want to adjust the proper position a little forward for fullness, in heavy air, a little back to flatten the bottom of the sail.

This technique works equally well with a partially furled genoa, other than the telltales may disappear into the turns...

__________________
06-15-2011 06:17 PM
MarkSF Thanks everyone for the replies, looking forward to doing some experimenting next time I take her out.
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