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Old 02-03-2010, 09:55   #1
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Dual Headsail with Furler

I am interested in running a dual headsail configuration on our 46 foot ketch. I also would like a furling unit for the headsail. I have heard that the Profurl has a dual track option.

Is this a viable method for running dual headsails? or is a standard hank on method better?

What furlers would others recommend for this?
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Old 02-03-2010, 10:29   #2
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My Golden Gate 30 has a Harken Mk II roller furler with twin luff tracks. She also came with twin 130% headsails and twin down-wind poles. She was sailed to Tahiti and back to SF Bay by the couple who finished building her, so I presume it worked fine for them. As Bay sailing does not provided trade wind conditions and we haven't quite been in the right conditions yet down off of southern California to try them out yet I don't have proof but suspect that they should work fine and both roll up if needed. Some say that twin downwind jibs cause the boat to roll too much but they have been used for decades.
Check out Singlehanded sailing with twin headsails view from a kitecam (
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Old 02-03-2010, 13:01   #3
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The Harken units also have twin grooves - at least the older model that I have does. I don't know if they did away with the second groove with their newest models though.
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Old 02-03-2010, 13:10   #4
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The cruising edition of the new Harken have only one groove but the regular model still has two.

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Old 02-03-2010, 13:37   #5
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There are many furlers with twin groves, not just Profurl.

Running two jibs requires two extra long poles.

Boat Cantare has recently sailed the Atlantic with twin jibs. Look up their page. cantare.se

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Old 02-03-2010, 13:41   #6
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BTW

If you are yet to have the sails made - you can opt for two twin jibs the length of the mast rigged with their loofs along the mast and the clews slightly fore. Then you can use shorter poles and have the same pull from smaller sails. You can also spill excess wind by just easing the sheets. On a ketch such a set up will be self-steering. But it is a purely broad reach / downwind solution.

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Old 02-03-2010, 13:53   #7
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BTW 2

Also - an option is twin jibs with one (common) bolt rope/foil 0 then you do not need a twin grove furler (!)

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Old 02-03-2010, 16:30   #8
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Quote:
Originally Posted by barnakiel View Post
BTW
"Running two jibs requires two extra long poles."

Why "extra long"?


"If you are yet to have the sails made - you can opt for two twin jibs the length of the mast rigged with their loofs along the mast and the clews slightly fore."

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How do you attach the luff of a jib "along the mast"?
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Old 02-03-2010, 17:04   #9
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How do you attach the luff of a jib "along the mast"?
Both arrangements are possible:
- free standing,
- along a stay hoisted between a fitting placed approx 1' in front of the mast foot with the opposite end hoisted by the original halyard.

If you use the jib halyard to hoist the stay, you must hoist a block at the top end too - to run the extra halyard for hoisting the jibs.

I think the free standing way lends itself to purpose made and especially nylon / light dacron (e.g. StormLite) sails.

The extra stay lends itself better to the case when existing jibs with hanks are available.

Note that the sails will be hoisted in front of spreaders and fore lowers.

This rig requires two spinnaker poles too (but they are much shorter than the poles needed to pole out a stem attached jib well.

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Old 03-03-2010, 10:58   #10
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thank you...I didn't even think of using a special dual jib sail.

This makes good sense! I also like the idea of the independent stay just fore of the mast... this way it is redundant and can use a hank on sail
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