There are a lot of properties to look at when selecting the best material for our halyards. The most obvious are stretch and strength. Creep, abrasion resistance, ease of splicing, weight, and UV resistance are all important to. We should also consider how we use the halyard. A halyard for a roller furler jib is subject to a moderate load for a long period of time, so creep is a very important property. Since the halyard doesn't move very often, UV resistance is also very important. Stretch doesn't matter too much at all. A racer who changes sails for each leg shouldn't worry too much about creep, weight, stretch and strength will be his priority. Where it really gets interesting is the blended ropes. For my purposes, I want low stretch, durability and easy handling. I sail mostly with a roller furling jib and have lots of other things to spend my boat bucks on. I decided to change my halyards to VIC because it has a great blend of properties with the Vectran core and dacron braid cover along with a reasonable cost. James S/V Delaney 1976 C&C 38 Oriental, NC ----- Original Message ----- From: dwight To: cnc-list@cnc-list.com Sent: Monday, December 02, 2013 4:41 PM Subject: Re: Stus-List halyards again
I never get the wire on my hands, so I don't worry about fish hooks.you need to adjust length at the wire end to make that right.my boat was delivered with rope to wire about 40 years ago.the sheaves don't mind some new wire.my lines don't chew on each other.if they did I would change something.if my halyards get that close to the water that floating matters I am in big trouble.hydrophobic, I think steel wire is too Flipping end for end, really how many of us do that, if it's that bad on one end I just get a new one and with wire to rope that is about every 10-15 years for me.I can handle that ------------------------------------------------------------------------------ From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley Sent: December 2, 2013 1:44 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List halyards again Rope is lighter, DIY, easier on the hand, easier on the sheaves, rope doesn't get fish hooks and won't chew on the other lines as bad. Often times the rope will float depending on the material and may be hydrophobic. You can also flip rope end for end when it starts to get worn or simply freshen up the end. Just my 2 cents, Josh Muckley On Dec 2, 2013 11:32 AM, "Joel Aronson" <joel.aron...@gmail.com> wrote: David, The rope is stretching over the entire 100 foot -plus length. Halyard tension should be adjusted during a race - less downwind, more upwind. You would need to check the sheaves to see if they were changed. Rope compatible sheaves are more V shaped. Rope is more of a DIY project unless you have the tools. You still the need the rope tail. Dyneema is lighter than wire, but I doubt you would notice the difference on a 12,000 boat. Joel 35/3 Annapolis On Mon, Dec 2, 2013 at 11:01 AM, Hoyt, Mike <mike.h...@impgroup.com> wrote: David Have your ruled out slippage of the halyards in the clutches? We have this problem on a number of boats on which I sail. Mike ------------------------------------------------------------------------------ From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of David Knecht Sent: Monday, December 02, 2013 11:58 AM To: CnC CnC discussion list Subject: Stus-List halyards again I was thinking about the recent discussions of new high tech halyards and have a question. The PO replaced my halyards with all rope, but I don't know what kind it is. I have noticed significant changes in sail shape over a day of sailing which I am presuming is stretch. Given the length of a rope halyard for a C&C, the stretch factor seems like a serious issue. If you have 60' of line after uphaul, then 2-4% stretch becomes a significant amount of change in mainsail shape. Those are the kinds of stretch numbers I am seeing for lower tech line. I don't want to have to adjust the halyard during a race when shorthanded. One solution seem to be to use a low stretch line (spectra core, etc.) and the other is wire/rope. It looks like wire-rope is actually less expensive, so what is the down side? Are they less durable? If someone says weight, then I am going to ask for a calculation of the relative weight difference of wire vs rope given the huge mass of aluminum and dacron we all have sticking 40' off the deck. I am hard pressed to believe that small weight difference is significant for non-Americas cup sailors. Dave David Knecht Aries 1990 C&C 34+ New London, CT _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com -- Joel 301 541 8551 _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ------------------------------------------------------------------------------ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2247 / Virus Database: 3629/6384 - Release Date: 12/02/13 ------------------------------------------------------------------------------ _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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