Josh,
My sheaves seemed to be original as I could not find anything from the FO indicating they had ever been replaced. Patriot’s mast was out last winter and my rigger said her sheaves were fine. They did not have a groove for wire rope. I think my halyards are 7/16 with a 1/2” groove. Each winter, I pull 3/8” messenger lines in place of the halyards. The extra space makes it easy to connect the messenger to the reeving eye on the halyard. I’d suggest keeping the 1/2" groove. Just my thoughts, Ron Ron Ricci S/V Patriot C&C 37+ Bristol, RI (978) 877-0369 <mailto:ron.ri...@1968.usna.com> ron.ri...@1968.usna.com From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley via CnC-List Sent: Monday, January 22, 2018 3:17 PM To: C&C List Cc: Josh Muckley Subject: Stus-List Masthead sheaves C&C 37+ I have a new problem for the collective wisdom. I'm getting the masthead sheaves re-made by Ed at Zephyrwerks. He made my boom end sheaves 2 years ago and did a great job. I have a 1/2" wide sheave box for 3 sheaves. He cut them with a slight relief and cut the groove for a 1/2" line. I had told him that I simply didn't want to needlessly limit my options in the future despite only using 5/16ths or 3/8ths for the reefing lines. Now 2 years later I'm in a similar situation except the masthead sheave boxes are 5/8ths wide. I can't exactly recall but I believe that I'm running 3/8ths halyards. When I talked to Ed he advised that he would like to cut the groove to match the line which is on the boat. 3/8ths. But also stated that he could cut it however I desired. It seems unnecessarily limiting of my options in the future to cut a 3/8ths groove. It is far easier to run 3/8ths on a 1/2 inch groove than 1/2 inch on a 3/8ths groom. The original sheaves were v-grooves and would accommodate anything from 1/4 inch wire rope up to 1/2 or even 9/16ths line. And we haven't even talked about the added thickness of a core to core eye splice. Anybody want to share their thoughts? Thanks, Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD •••
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