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Selden Jib Halyard Swivel

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Black Diamond View Drop Down
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Joined: 24 October 2015
Location: Newport, RI, US
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    Posted: 12 July 2018 at 21:31
For those of you who have the SELDEN TD (thru deck) furling:     The jib halyard swivel on our new boat turns out to have been undersized for the boat.    ESPECIALLY if you have the HPM sails (which require higher halyard tension).  

I've attached a couple of pictures,  but fundamentally what happens is that the stock SELDEN furling swivel design dates back to the 1980s and is not really prepared for the higher loads new sails and new rigs present.   

If you are having some difficulty furling your sail or letting it out,  you might want to check this..  I did and it was covered under my warranty.

FWIW - Selden was great in this warranty process,  doing the right thing and upgrading the unit rather than just replacing an undersized one.

Rick







Picture 1 (Original Selden Swivel)

The jib was difficult to roll in or out,  often requiring me to go to the headstay under sail and roll out the last foot or so of sail by manually moving the extrusion.  The halyard places a huge load on the aft end of the swivel only and that causes a "pinch" on the bearings such that it makes it hard to roll out, roll in and eventually will seize up.    If you need strong halyard tension, as HPM sails do,  this can be a problem.



Picture 2 - Replacement Swivel (upsized by Selden at no charge)

Note the design differences.    The load points are in the middle of the swivel to avoid the "pinch" in the older design.    Its also a much more rugged, maxi-sized unit.  My wife says its chrome design gives the boat more "bling"..... Smile


Picture 3:   Rigged base unit, torque tube and halyard swivel.   

Here you can see the assembled unit without the sail....  



It turns out that the vectran loop which forms the new halyard attachment point is exactly the same vertical length as the old swivel.   I was worried about this causing a problem with sail luff length but it turned out to fit perfectly.

Picture 4:   The swivel at the top of the mast

Here you can see perfect alignment...  We had someone at the top of the mast during the rigging to see it roll out and roll up under load.    We even did so at varying backstay adjuster pressures.    Looks good!
This shot lets you see the difference in where the load goes on the swivel.   Contrast the pull here with the pull on the original design swivel.


Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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sailkoop View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sailkoop Quote  Post ReplyReply Direct Link To This Post Posted: 13 July 2018 at 07:41
Hi Rick,
looks good, but the Jib is app. 0.5m to short...Wink
best regards

Bjoern

http://www.sy-serafina.de
Hanse 470e #165

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Black Diamond View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 13 July 2018 at 10:08
I noticed there was some room there as well,  but this was as cut by Elvstrom when the originally made it.

Nothing to do with the swivel issue though...


Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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marcopone View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote marcopone Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2018 at 12:58
Very interesting and useful post, thanks!
I also become crazy with this problem.
Every time I have to loose the tension to roll the jib.
How did you find this solution?
Through Hanse or directly with Selden?
You boat was (is) still under warranty?
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Black Diamond View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 04 August 2018 at 13:46
My rigger identified the problem when performing this years tune.   I needed to let the rig settle in before doing a real tune on it.  When he was doing that I mentioned the hard furling and he checked.

Our boat is still under warranty. I notified Hanse as well as Selden thru the rigger.  The Selden gear is also under warranty (late 2017 575).   We also found a missing set screw when the furling system was assembled and had to replace that along with putting loc-tite on things that never got it at the factory.  

Pays to have someone checking..




Edited by Black Diamond - 04 August 2018 at 14:17
Rick
S/V Black Diamond
Hanse 575 #161
Newport, RI
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