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Old 19-08-2016, 06:01   #46
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Boat: 18 ft avon, 1970 Columbia 34 Mk 2, 1980 Neptune 24 FK
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Re: Tricks for increasing batten tension?

When sail is down put push on the batten hard making it bow excessively, then redo the Velcro ......

Originally Posted by paxfish View Post
Hi Gang,

Without investing in adjustable batten caps, what are the tricks for increasing batten tension on a more classic velcro-type pocket? I need to kick it up a notch on my upper two battens, but having trouble getting the leverage to do so....


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Old 08-10-2016, 12:27   #47
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Boat: 1962 Columbia 29 MK 1 #37
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Re: S-Shape in Main going upwind. Why?

Originally Posted by Franziska View Post

my boat has a double mainsheet system.
Usually it works wonderfully to control sailtwist on the main.

Still, yesterday I was puzzled by a strange S-Shape in the battens aft.
Happens upwind.
Rig is toprig without spreaders.

Do not think it's a result of the genoa blowing into the main.
Anyone got an idea why this happens and what remedies might work?

Will try with more luff tension and more batten compression tomorrow.

Thanks for your thoughts,


Welcome to the Woods Mira 35 - Catamaran Lady Rovers Website!
Well, I know this is an older thread, but I had forgotten about it till I was messing around with my full-battened main and genoa a couple weeks ago. I could definitely get the S to form (exactly as shown in photo) when the genoa was backwinding the main while going as high as possible in under 10 knots of wind. Let the genoa out a bit and S disappeared. More wind, more luff tension, no S. Sorry I shoulda taken pics. Next time.

1962 Columbia 29 MKI #37
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Old 08-10-2016, 12:45   #48
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Re: S-Shape in Main going upwind. Why?

Yeah dude try not going dead upwind LOL
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Old 08-10-2016, 15:10   #49
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Re: S-Shape in Main going upwind. Why?

I own a cat boat as well as a sloop.

My Freedom, no headsail, full maxi roach and full battened main does have an "S" shape when I tack in light winds.

My point: no headsail.

Check batten stiffness.
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Old 08-10-2016, 23:32   #50
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Re: S-Shape in Main going upwind. Why?

Too much halyard tension

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