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Riv View Drop Down
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    Posted: 25 Aug 19 at 7:52pm
Club brough a new RS Quest this year and we are having problems with the jib halyard/top furler bearing.

Users tend to tension the halyard, pulling the forestay towards the mast. This causes problems with the furler.

Looking at the position of the halyard block it is about 125mm above the head of the jib and this give a large percentage of horizontal pull rather than vertical. This evening one user suggested putting another block on the spinnaker halyard eye and leading the jib halyard through that. This would certainly solve the problem, or I might just move the current jib halyard take off point up the mast by 200mm. This would also solve the problem.

Rest of the boat is fine. Stays are on the 4th hole dows on the shroud plates, rig tension is not great and the forestay adjuster is as short as it goes.

I could also rake the mast back a few more holes which would add tension to the forestay and make it less likely for users to pull the forestay back with the halyard.

Hs anyone else had problems with this setup?


Mistral Div II prototype board, Original Windsurfer, Alpha 220PR
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 19 at 8:25pm
Have you bunged the photo at RS for comments? The off axis pull of the jib halyard seems intended to make sure the halyard doesn't wrap around the forestay when the jib furls. Make the angle too shallow and that could happen.

[later]

Are you sure users aren't simply over tensioning the jib? The rig tension seems intended to come from the forestay, and the jib halyard only for moderate tension of the luff. Anyone brought up in the traditional way of swinging up the jib halyard as tight as possible maybe needs to rethink.

Edited by JimC - 26 Aug 19 at 10:31am
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Post Options Post Options   Quote crosby mafia Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 19 at 10:22am
We have the same,  I've wondered about moving it up for a better line.  We also have a Sea Cadets unit based on our lake, who have about 6 boats. Obviously all the same, but they don't tend to worry about job tension as racers do. 
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Wiclif View Drop Down
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Post Options Post Options   Quote Wiclif Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 19 at 4:27pm
As Jim C says.  There is also a tensioning lever on the bottom of the forestay to reinforce Jimís comment.

Might I suggest some sticky tape on the jib roller swivel to make sure it stays together?
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Presuming Ed View Drop Down
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Post Options Post Options   Quote Presuming Ed Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 19 at 5:43pm
How easily does the swivel rotate? Maybe some McLube or other appropriate lubricant?

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Riv View Drop Down
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Post Options Post Options   Quote Riv Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 19 at 8:39pm
Jim C, yes, users are tightening up the jib halyard as the luff always seems to be crinkly and it's pulling the jib head too close to the mast and the top furler bearing is jamming I can add quite a bit more rig tensionif you think it's a good idea.

Wyclif, where would I put sticky tape?
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 19 at 9:15pm
I'd talk to RS TBH. I'm sure they know far more about their boat than I do.

I think you want to be a bit careful about rig tension on a rotomould boat. If the forestay isn't sagging too much that would be good enough for me. Similarly with the jib halyard I'd want to use the least tension that gets it setting reasonably. It's not a race boat, so you want to get that last 10% of life out of hull and rig rather than the last 1% of performance.
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Post Options Post Options   Quote Wiclif Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 19 at 4:43pm
Riv.  In answer to your question.  Tape the swivel to cover the split rings.  Split rings always have the potential of getting caught by the spinnaker halyard and being pulled out.  
If leaving the jib up when the boat is not being used, the tensioning lever should be released to avoid straining the boat
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Riv View Drop Down
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Post Options Post Options   Quote Riv Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 19 at 8:13pm
Went down this evening and made this Mod. Jib furles ok (and I lubricated the top swivel) . Now to see how our club users respond to the change. Hopefully they will not notice anything.
Mistral Div II prototype board, Original Windsurfer, Alpha 220PR
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Riv View Drop Down
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Post Options Post Options   Quote Riv Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 19 at 8:21pm
Mistral Div II prototype board, Original Windsurfer, Alpha 220PR
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