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Self tacking jib traveller

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415 Singapore View Drop Down
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    Posted: 17 August 2015 at 12:02
Hi has anyone had a problem with their self tacking jib traveller? The car on ours shattered last weekend when beating upwind in about 15 knots apparent wind. Through a sail making friend I was put in touch with Selden Australia who felt that a single car was insufficient for the possible loads. They have suggested that we replace it with a double car.
Bearing in mind we have all Selden rig and fittings I was slightly surprised by their comments, but maybe they don't get involved in the design process?
Looking forward to hearing anyone's views
All the best
Paul - Night Train
Paul - Night Train - 415 #136
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Rubato View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 17 August 2015 at 17:13
Interesting, the 400 used a single car for years without issue.
Steve

Hanse 400e, #168
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StavrosNZ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 17 August 2015 at 22:14
Makes no sense to me, the 415 has S/T jib with an area of less than 35m2, thats a small sail, a selden 70mm plain bearing block has more than enough strength for this job. More likely you had bad block or it had weak point somehow.

Can i also suggest that a sail this small does not need 2:1 sheet arrangement either, you will find you can pull your fuller in much easier with less resistance if you simply run the sheet from the mast, through the block on S/T track and unto sail, either tie it directly to clew board on the sail or in my case i placed a loop in the end of the sheet and use soft shackle to connect the sheet to the clew board.
Stephen
2010 H400 #691, Auckland, New Zealand
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samuel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 18 August 2015 at 08:16
The thing about 2:1 sheeting at the jib is that it reduces the weight off the rest of the pullies etc that the sheet runs through on its way to the winch.
I have seen comments on this forum about the first mast sheave wearing badly & owners replies suggested that the 2:1 was preferable

Edited by samuel - 18 August 2015 at 08:18
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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StavrosNZ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 18 August 2015 at 09:21
I can assure you the mast sheave box is identical to ones Selden uses for code 0 and spinnaker halyards.

I have used both set ups and have found that to reduce sheet diameter by at least one size from factory sheets by going to dyneema core reduce from 2:1 to single your S/T is a lot easier to set and furl.
Stephen
2010 H400 #691, Auckland, New Zealand
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