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 Rigging for an Asymmetrical Spinnaker		  New Topic  Topic Locked
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James Simmons
1st Mate

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USA
41 Posts
Initially Posted - 09/29/2009 :  13:11:36  Show Profile
I am planning on buying an asymmetrical spinnaker and have a couple of questions about how to rig it. I have a roller furling headsail so I have an unused jib halyard in place. On searching other posts I learned that I can mount a spinnaker halyard block on the forward clevis pin in the mast cap. A possible problem is that I have the old style wire halyards and I am not sure if most halyard blocks are designed to handle the wire. Has anyone had any experience with this? Comments?

Is it difficult to replace the wire halyards with line only if this is required?

Thanks!
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keydup
Deckhand

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10 Posts
Response Posted - 09/29/2009 :  15:35:03  Show Profile
I would use a separate halyard for the spinnaker halyard and would not use the wire. If you have the mast down, it should be no problem to run your new spin halyard through the new block.
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keydup
Deckhand

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10 Posts
Response Posted - 09/29/2009 :  15:41:16  Show Profile
Also, look in the tech tips, there is a tip about adding a spinnaker and a detailed section about rigging the halyard.
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JohnP
Master Marine Consultant

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1520 Posts
Response Posted - 09/30/2009 :  05:47:03  Show Profile
Your question implies that you are considering using the jib halyard for the asymm. That's not a good idea. You want an additional block forward of the forestay to keep the spinnaker and its halyard flying freely.
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 09/30/2009 :  07:38:29  Show Profile
Before I went to the trouble of installing an entirely new halyard and block I would try what I have first and make adjustments based on the results. why would you need to move the halyard forward with an asym any more then you would for a genoa? Isn't an asym pretty much a fuller cut genoa?
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JohnP
Master Marine Consultant

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1520 Posts
Response Posted - 09/30/2009 :  16:14:05  Show Profile
The spinnaker halyard avoids chafing the sail and the sock on the forestay. Running a spinnaker up outside the forestay and then holding the head of the sail inside the forestay puts the halyard at risk of failure due to chafe. That would be ok for a short time, but routine use like this would wear out the halyard or the sail or the sock up there, IMHO.
Edited by - JohnP on 09/30/2009 16:16:50
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JimB517
Past Commodore

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USA
3285 Posts
Response Posted - 09/30/2009 :  16:32:09  Show Profile  Visit JimB517's Homepage
There is a pin on the head of the mast that can hold a block outside the forestay for the halyard. You also need the tackline/downhaul block outside the forestay. I use the pin in the anchor roller to hold this block. You need to run the tackline aft to a winch - the load can be tremendous - well beyond anyone's ability to pull the tackline by hand. Adjusting the tackline is how you adjust the sail for running or reaching.

For flying the sail you want everything outside the forestay. If you gybe with parts inside you will get wraps and quickly tear up an expensive sail!
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.