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
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