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sboardcrazy said..duzzi said..sboardcrazy said..duzzi said..sboardcrazy said..dedekam said..
Hi all,
I have for some time wondered about actually happens when a sails gets really overpowered.
A bit hard to describe, but when caught out with a sail really way too big I have to push the sail hard away from me with the front hand, like the rig wants to slam the mast in my face!
Backhand pressure does not change much, which to me indicates that the harness lines are sufficiently far back on the boom?
Moving the lines might alleviate some of this(?), but my gut feeling is that something else is happening here. I have experienced this with various no cam freeride/freerace sails. Does this occur with cambered sails also?
I find that.. When I'm in survival conditions or a bit worried I end up with my front hand right next to the mast ready to push away on the boom..?

I start to think, from what I read, that you are not using the sail as it should be used. A race or free race sail is designed to be used well powered to overpowered, they do not do what you describe. But a big part of the equation is to retain your asset on the board and loading the sail.
Your comment that you move the front hand "right next to mast" is an indication that you are disrupting the proper position of the sail. Similarly with your observation that you do not see the top of the sail twist. It is a bit hard to quantify twist while you are sailing but you need to load the sail to see twist.
What I think is happening is that in windy conditions you unload the sail, and then the inevitable happens: the sail looses the forward vector and it is just a matter of time until it gets back winded.
What do you mean by 'asset'. I've seen that used in overseas posts..do you mean stance?
Re sail twist I'm talking of looking at photos or videos of me sailing not looking up.
When I say my front hand gets close to the mast..it's more a psychological thing. I don't know if I have needed to push (?) but it's there in case I need to .
I don't think I sheet out but I'll take note next time.
I have an adjustable outhaul and use that to extend the sails range..I usually downhaul to specs so the sails rotate and rely on the outhaul on the water.
I can't pull more on unless I come back to the launch..The sails luff is generally loose to the boom.( 3 cammed Overdrives)..

I might try moving my lines back next time and see if that helps..
I was watching one of those videos by Cookie ( I think it was him) and he said in overpowering conditions he moves his lines forward so he's not using the full power of the sails..Though he is on small kit with non cammed light 3.7m sails ..

What happens is that you are getting overpowered by the sail. Your body is lifted up from the proper position and a result the sail is unloaded. You loose speed (even if it feels the opposite!), the sail keeps propelling forward but it does not release any longer. It becomes a much more rigid surface that keeps going but it will either catapult you or get back winded ...
The sail you own is perfectly fine, as most proper freerace sails (cammed or non-cammed) would be. You could take a Severne Overdrive to Luderitz and be ok. Forget line position, hand position and looking at the twist. With a race/freerace you have to commit, and that takes some technique and bit of guts when overpowered. You also need the proper board to go with it ... if you are on a slower freeride board it is not going to work ...
Here I'm on a board 50ltres over my weight in wind gusting to 30kts ..luckily the chop wasn't too big.. It's a freeride non cammed sail - 1st use..
I'm in survival mode crouching down low near the water and weighting the windward rail . The wind was threatening to lift the kit and throw me.. In the upwind bits I'm just trying to keep in one piece/on the water and I only power on when there's a bit of a lull..
Tiring but I had a ball..

I had to use the big board because of the big lulls. .Every now and then I'd swap to the waveboard which was a better fit but the lulls made that a bit dodgy to use..
I've since bought a 90ltre version of the big board which should be perfect in those conditions..


I will not comment on the claimed 30 knots

but the video confirms my guesses. Your body is yo-yo-ing throughout. It is constantly moving back and forward, toward the sail plane and away from it. You are very far removed from keeping a steady position with respect to the board. Instead the wind lifts you, you loose position, then regain it, then loose it again. That is what is giving you trouble.
It is something that happens, typically when you are caught unprepared by a gust. But in the video you do this almost rhythmically. It might be because you are too upright on the board, and maybe too close to the sail to begin with. The board you are using might help messing things up. Fifty liters above your body weight seems a lot, although you just have some chop in the video.
Again this has nothing to do with the sail and seemingly mu

ch to do with the sailor!