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Go Back   SailNet Community > Skills and Seamanship > Seamanship & Navigation
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Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


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  #11  
Old 09-28-2010
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It depends on the wind speeds. If you have the full mainsail up in 10 knots of wind, and have it reefed to 50% the area in 20 knots of wind, the force on the sails is actually twice as much overall... since doubling the wind speed effectively quadruples the force and you've only halved the area.

As for the storm sails that wrap around a furled headsail, like the GaleSail, they're designed to spread the loads over the entire luff of the GaleSail, but it has to be the right type of furler—one with a foil.


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Originally Posted by MiVelero View Post
Thank you all for your responses.
I guess I will continue to run with main only when wind pipes up. But I still don't understand where the loads are greater when reefed. I would think less sail less force, no?

Along the same thought here, I read some where that hanging a hammock between mast and fore stay does damage to the rigging ?
And what about those storm sails that wrap around your furled sail ?

OK, so I'm a little slow....
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  #12  
Old 09-28-2010
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Back to my response at post #2, I should add that any actual reefing is a rare choice for me and others with a split rig. My first choice is to drop the main and just leave my jib and mizzen in a blow. Any need for less sail is rare. Take care and joy, Aythya crew
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  #13  
Old 09-28-2010
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Now I'm confused... some where in this forum there was a discussion regarding the use of jib and no main, again loads on the rigging beign the problem, specially in heavy winds.
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  #14  
Old 09-28-2010
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Quote:
Originally Posted by MiVelero View Post
Now I'm confused... some where in this forum there was a discussion regarding the use of jib and no main, again loads on the rigging beign the problem, specially in heavy winds.
There have been problems, but really with a well found rig there shouldn't be... An overly flexible mast benefits some from the support of a hoisted main and such a rig may have difficulty in a seaway with just a jib. A few years back there was an incident where three Caribbean charter boats lost rigs in the same blow allegedly due to sailing headsails only - but those were reputedly early versions of Hunters backstay-less rigs in big seas.

We see people sailing under headsail alone all the time, in some cases it's quite obvious the main cover hasn't been removed in a while. Personally we prefer a properly balanced reefed main and smaller jib, but many don't bother. Fact is that most masthead boats will sail much better on genoa alone rather than main alone. What boat/rig do you have, anyhow?
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Old 09-29-2010
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Also, my referrence o dropping the main is with my mizzen still up on my ketch rig with the triatic keeping everything stiff between my masts. This is quite different in rig and balance compared to sailing a sloop with the main down; however, I certainly not opposed to that, but under reefing conditions it would likely not perform as well. Take care and joy, Aythya crew
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Old 09-29-2010
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I've got a Hunter 34 '87 and run a 135% genoa, the main with 2 reef points.
So far I've done well with a reefed main and 25kt winds, hell of a ride but was comfortable it was not an Oh Sh*t moment.
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  #17  
Old 09-29-2010
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Off the wind main only is fine in most cases, although the helm can get heavy in a closer reaching situation. Beating effectively is where the main-only situation is going to be less efficient.

Your boat should do fine genoa only too.. with the B&R fully backstayed rig I don't expect you'd have any issues unless you were really slamming hard into a large head sea.

The point is, really, the boat will sail with most any combination in most conditions... it's just a matter of comfort, balance and speed. It can be fatiguing to fight heavy weather helm for a lengthy passage - often a balanced plan of reefed main and appropriate headsail will just feel better, and go better too.
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  #18  
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Thank you again to all for your input, things are clearer now.

I use genoa only in very light winds and not that often, but have been told by many that I will damage the riggin?
In heavy wind I roll up the genoa and reef the main, so far it has not failed me. I need to try the genoa only with 15 to 20knts and see how she behaves if the mast don't come crashing down....
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Old 09-29-2010
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"hanging a hammock" would produce a point load on the furler rod, which might bend or dimple it or crush the track. On a wire forestay, no problem, but you'd need to look at what you've got and ask yourself "If i put this in a vice, would it be damaged?"

If the answer is yes, the point load from a hammock could damage it to. If you can spread the load, or you're light, you might get away with it anyhow.
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Now that makes sense.... Thank you for that explanation.
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