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Old 06-16-2008
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Our new Harken Unit 2 Mk IV installed July 2007 has been working flawlessly. Everything halekai36 said I would agree with 100%. It is that easy, when I moved the line to the port side I had to adjust the drum, easy and took less then 2 minutes!

One note, I should have raised the height of the drum due to the proximity to the anchor & roller, otherwise love it!

BTW...I inquired with Harken about the crappy furling line and was very pleased with how they reacted to my inquiry...here is their response (I removed names & email addresses and start at the bottom which is my original email, the others are the replies from Harken!

************************************************** *****
Hi Michelle, our customer Shawn is one of about 20 who have complained about the line. It was developed to be as strong as the old MkIII line but smaller in diameter and less expensive.fficeffice" />>>
I think it is time that we get our salesperson from Yale Cordage to give us a visit to talk about our customers concerns. Please set up a meeting within the next month.>>
Thanks Michelle and thank you Shawn for contacting us about this problem.>>
> >
Greg
Senior Engineer - Furling Technical Manager

Harken Inc.
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Sent: Wednesday, January 23, 2008 10:06 AM
To: Shawn
Cc:

Subject: RE: Unit 2 Line>>

> >
Shawn,>>
Please let me know how this proceeds as adjustments are employed. Customer feedback both positive and negative can be a very useful tool for improvement. Thanks again.>>
Jim,>>
> >
Jim
Tech Service Group Leader>>
>>
Harken Inc.>>

> >
From: Shawn
Sent: Tuesday, January 22, 2008 6:17 PM
To: Jim

Cc: ffice:smarttags" />Dan
Subject: RE: Unit 2 Line>>



> >
Jim,>>
>>
Thank you very much for taking the time to answer my question and explain the rational behind the line chosen. I should have clarified that my main grip with the line is the grip it doesn’t have. Being a cruiser most of the time, I don’t wear gloves, I feel a line sold on a cruising furler should be easier to grip, especially when wet

Nonetheless, I will be sure to regularly check everything you advised me too.>>
>>
Regards,
Shawn>>
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>>
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-----Original Message-----
From: Jim

Sent: Tuesday, January 22, 2008 3:23 PM
To: Cc: Dan
Subject: FW: Unit 2 Line
>>
>>
Shawn,>>
Good after noon, sorry to hear of your dissatisfaction with our choice of the furling line used in the new MK1V and cruising furlers. On the other hand I am happy to hear the kind words regarding the performance, construction and design of our units, thank you for that. I would like to answer your question about the choice of line and offer a couple of ideas that may help you better manage the headsail furling line. For many years we sold a double braided Dacron line with the furler as the furling line. It was selected for its strength value and a size diameter that could be easily hung onto with the assistance of the ratchet installed as the last block in the lead block system. When the manual furling redesign came along we looked at all of the options available and tested dozens of materials, constructions and diameters from well known cordage manufactures while staying within the strength limitations we needed to meet. I was involved with that testing. We tested some stiff lines, some flexible lines, double braded and single braided lines and we even tested a line with two distinct different diameters in the same length of cordage much like a tapered line. We set and furled and set and furled all day, changed the line out, make notes and move onto the next line. At the end of the exercise we found that there was very little difference in performance between these very different lines, they all worked very well. When it was all said and done we decided on a single/solid braid line which was slightly smaller than the double braided line we replaced. The single braided line is stronger than the line we used to use and just a hair smaller in diameter with approximately the same hand hold and feel. >>
Having explained all of that. There are a couple of things in the rig that can cause difficulty furling. The most common are a halyard that has too much tension on it causing excessive friction in the ball races in the halyard swivel and not enough tension on the head stay which will also make things more difficult. If you feel that the head stay is even a little to slack put a couple of turns on the turnbuckle body and slack the halyard .250” or .375” and try it again. There should always be a ratchet used in the furling line lead block system and the ratchet should be mounted at the furthers location aft. The line should lead aft through the ratchet and then back forward covering as much of 180-degrees of the sheave as possible. The way this works is that hauling out on the sheet to set the sail automatically charges the furling line back onto the spool as the sail sets. As the sail sets it drags the furling line over the ratchet sheave which is set so the sheave cannot turn in the direction the line is moving while it charges back onto the spool which impedes the line going back onto the spool which forces it back on the spool in a much more orderly fashion. When it is time to furl the sail the furling line is hauled on which causes the sail to be furler around the foil system. Because the sheave can only turn in the direction of the line as the furling line comes off of its spool it is assisting you hang onto the furling line at a ratio of 15:1. It is not reducing the load at all but the faceted sheave turns only in the direction it needs to to furl the sail, it makes the load on the furling line much easier to manage by hand. >>
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Jim Tech Service Group Leader>>
>>
Harken Inc.>>

>>



From: Shawn
Sent: Friday, January 18, 2008 8:24 AM
To: harken@harken.com
Subject: Unit 2 Line
>>

>>
Hello,>>
>>
I have recently…August that is, purchased and installed a new Unit 2 for my Tartan 37. I am very pleased with its performance, construction, and design…with the exception of the line that comes with it. It is crap, really bad! Why put such a line on a Harken product then charge $2000 + for it. I don’t get it….please explain. >>
>>
You can read on Sailnet here http://www.sailnet.com/forums/showthread.php?t=39946 how many others feel the same.>>
>>
Shawn

Last edited by T37Chef; 06-16-2008 at 08:53 PM.
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