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Catalina/Capri 25/250 Sailor's Forums

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Asymmetrical spinnaker

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bradminda
1st Mate

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USA
45 Posts

Initially Posted - 05/22/2008 : 22:55:36

I have a new asymmetrical spinnaker for my standard rig 25. I need some advise regarding the halyard situation. Can I use the jib halyard or should I install a new one.

Edited by - on

farrison
Navigator

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USA
166 Posts

Response Posted - 05/23/2008 : 09:59:35

Yes, you can use your jib halyard (I assume you have a hank on headsail?). Or you can rig a second halyard. There are lots of options, and they will all work. It depends on which attachment point the top of your fore stay is rigged to. If it is attached to the hole closest to the mast head, then you can rig a halyard to the outer hole and hoist the asym from that. Your asym will "live" outside your fore stay. If the fore stay is connected to the outer hole (like mine is, because of my furler) then the block for the asym can be attached to the inner hole and the asym will then "live" inside the fore stay. Check the tech tips for a third option, you can add a "mast crane", a hoop that is added to the masthead and holds a block outside both of the fore stay holes. Any of the options should work. The size of your asym will dictated part of it. If it is a big deck sweeper, you may want it outside your fore stay. If you drop your mast periodicaly, you can experiment with the set-up. Good luck!

Paul

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JohnP
Master Marine Consultant

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1520 Posts

Response Posted - 05/23/2008 : 11:00:27

The asymm will fly outside the forestay, no matter where you hoist it, but with every jibe the asymm halyard will chafe on the forestay if it is flown from the jib halyard inside the stay. The chafe will take place out of sight at the masthead with each asymm jibe. You could look at the masts in your marina with binoculars to see the various masthead setups your neighbors have.

So it would be best to use or install a special purpose spinnaker block or spinnaker sheave at the mast head.

With your rigging set up uniquely for this spinnaker the asymm halyard will be free of interference from the forestay, and the sail will not crash down one day when the frayed halyard parts in a strong breeze.

Edited by - JohnP on 05/23/2008 11:03:05

Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts

Response Posted - 05/23/2008 : 12:43:00

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by JohnP
 The asymm will fly outside the forestay, no matter where you hoist it, but with every jibe the asymm halyard will chafe on the forestay if it is flown from the jib
<hr height="1" noshade id="quote"></blockquote id="quote">

Not the case. Asyms can and are often gybed and or tacked inside the forestay. Farrison is correct when the sail tack is inside the forestay at the bowstem the sail "lives" inside the forestay. Done it, only way I would do it.

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aeckhart
Master Marine Consultant

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USA
1709 Posts

Response Posted - 05/23/2008 : 13:47:01

I beg to differ Frank. You'll never see an asym on a Cup boat flown inside the forestay. They're all flown on a sprit outside the forestay. I also have done it both ways and now fly mine outside the forestay. I am currently working on installing my asy of a furler and sprit for ease of single-handing. I'm working on fabricating one.

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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts

Response Posted - 05/23/2008 : 15:03:49

People who disagree with me are smarter than me. A sprit would certainly be a cool mod to any boat.

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sgoodhue
1st Mate

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USA
28 Posts

Response Posted - 06/01/2008 : 16:31:14

I moved my roller furling gear to the inside pin position on the mast head of my tall rig. I then, placed a single 60mm lewmar single swivel block on the outter pin position and ran a halyard for a 499 sq ft asymmetrical with a ATN sock. I adjust the tack heighth using a ATN Tack collar with a block to a deck block mounted to the stem fitting and then run aft to a spinlock where I also have the ATN snuffer control lines run. This allows minimum deck movement when launching/snuffing/tacking and keeps the spinnaker outside of the headfoil at all times without any chaffe.

Just remember: In the valley of the blind, the one-eyed man is king.

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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.