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Sail reefing

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SailCS33 View Drop Down
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    Posted: 11 January 2020 at 13:21
I'm new to my h320 boat and ordering new main sail. I have specific question about reefing connection. The original has webbing and a ring. My sailmaker is suggesting a dog bone style reefing point. Can anyone tell me what is better for this boat?
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Martin&Rene View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martin&Rene Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2020 at 17:46
I cannot answer your specific question, but this article describes how I have set up my 3 reefing line systems that all can be operated from the cockpit.  It also shows how I have changed it slightly when I added a new mainsail.  Perhaps it will give you some ideas.    
Martin&Rene Hanse 341 Dipper Wheel steering, 3 cabin layout & shallow keel, normally based in Scotland
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martin&Rene Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2020 at 17:48
It would help if I put in the link.  Ouch

https://www.myhanse.com/single-line-3rd-reefing-setup_topic10548_post96364.html?KW=reefing#96364

I cannot answer your specific question, but this article describes how I have set up my 3 reefing line systems that all can be operated from the cockpit.  It also shows how I have changed it slightly when I added a new mainsail.  Perhaps it will give you some ideas.    

Martin&Rene Hanse 341 Dipper Wheel steering, 3 cabin layout & shallow keel, normally based in Scotland
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SailCS33 Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2020 at 19:05
Thank you. I can't tell from the picture what style reefing point is it? Does it have a hole with a grommet and webbing with two rings on each side? This is what the sailmaker calls the dogbone.
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Martin&Rene View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martin&Rene Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2020 at 17:21
I do not have a wide yachting experience, but the only time that I have come across a reefing unit of 2 rings secured with a tape (your sailmaker’s dog-bone) through a sail cringle is on simple slab reefing systems, where the tack is reefed by fastening the dog-bone onto a hook on the mast.  I would think however that your yacht has a single line reefing system.

I would think there are 2 types of reefing systems on Hanse yachts:

For the first type, a single reefing line goes from the bottom of the mast, through some form of luff reefing eye/turning point, down into the boom and out at the boom aft end, up to a leech turning point and then back to the boom.  Friction is the problem with single line reefing system, so if this is your system then all rings should be replaced with pulleys, either incorporated into the sail or fastened to it. 

The other form is normally referred to as the Selden system and there are variations on the theme, but basically, they include a balance block inside the boom.  In the simpler variant, the line from the bottom of the mast goes into the boom, then goes part way down the boom, round a pulley, normally on some form of carriage, back to the front of the boom and then up to the luff reefing point eye and fastened there.  There is another line fastened inside the boom, around the other end of the carriage and then back to the aft end of the boom and up to the leech reefing point in a similar manner to above.

If this is your type of system, then the luff reefing point can be just an eye.  The only advantage of the dog-bone system I can see is that it would allow the flexibility to set the reefing line up on either side of the sail, whilst if the eye was fastened with webbing it would always fold the same way and some people worry about developing a set of creases in the sail.  It would be interested to know what your sailmaker's reasons are for his recommendation.

As a general comment, unless you sail in a light wind area, I would always recommend a 3rd reef in these big mainsails.  You may only need it once or twice a year, but it is nice to have.  Similarly, it is nice to have pulleys on the various reef turning points, rather than just running a line through a sail cringle.

The answer to your last question, is that on my original sail there was just a sail cringle for the luff reefing points and the linked article describes how I simply fastened a pulley on one side of the sail to a ring placed on the other side of the sail.  My latest sail has sewn in pulleys. 

Martin&Rene Hanse 341 Dipper Wheel steering, 3 cabin layout & shallow keel, normally based in Scotland
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