Josh,
I use the term stopper as a generic for sheet stoppers, halyard stoppers, jammers, rope clutches, or almost any kind of mechanical cleat (except a cam cleat. I call those cam cleats). I have some really old Schaefer rope clutches that work just fine. They hold 3/8” or 10mm line well, 7/16” most of the time too. I don’t think there is any serious concern if the sheave is slightly too large. Yes, the halyard will be slightly flattened, as it will not be supported quite as well, but as long as the difference is only 1/8” or so, it’s not an issue. A serious mismatch (1/4” or more) might be cause for some concern, but it would be the long term damage from being repeatedly flattened and reshaped as the line runs over the sheave. Jake Jake Brodersen C&C 35 Mk-III “Midnight Mistress” Hampton VA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley via CnC-List Sent: Monday, January 22, 2018 21:42 To: C&C List <cnc-list@cnc-list.com> Cc: Josh Muckley <muckl...@gmail.com> Subject: Re: Stus-List Masthead sheaves C&C 37+ Halyard stopper? What's that? Haha, no really what's that? Stopper balls? Or jammers? You're right though 3/8ths is almost too small for my winches. So smaller is pretty unlikely. But bigger might be nice, particularly if it becomes necessary to run the taper of a core to core eye splice. The 3/8ths sta-set I have for my spin halyard is almost too small at ~5000 lbs break strength. I really like to make sure my lifting rigging is sufficient for climbing standards. I guess my question is, is there any disadvantage to running smaller line in a big sheave. Josh
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