[Public-List] Masthead sheaves.

[brooks.glenn@comcast.net]

George brings up a good point. I think I missspoke in my earlier post.  I do have the 2 1/2" sheeves, but in my new installation there are TWO sets of sheeves per halyard. The sheeves are horizontal and in line with each other fore and aft in order to run the halyard across the top of the mast section then down  to reach the mainsail and genial. ( external halyards)

All of this replaced my old mast head and internal 6+" fiber sheeves

Stephan, if you have trouble finding replacements, you might call Pt Townsend Rigging, they have sheeves in stock.

Glenn
Dolce 318

Sent from my Verizon Wireless Phone

----- Reply message -----
From: "Gordon Laco" <mainstay at csolve.net>
To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
Subject: [Public-List] Masthead sheaves.
Date: Mon, Nov 26, 2012 1:04 pm


Hi Stephen - yes, having internal halyards makes all the difference.  The
standard large sheave assumed the main halyard coming up the forward face of
the mast, across the whole chord of the mast over the big sheave, then out
the after face of the mast. and so to the headboard of the sail.

Your internal halyards don't need such large sheaves.

Gord #426 Surprise




On 26/11/12 3:56 PM, "Stephen Gwyn" <stephen.gwyn at nrc-cnrc.gc.ca> wrote:

> 
> Hi,
> 
> I had a look at those pages before mailing. There's no way
> a 6 3/4" sheave would fit in the space provided. Were there
> two different masthead units installed by Whitby? I have
> internal halyards. Does that make a difference?
> 
> Stephen
> #495 Quasar
> 
> 
> Take a look at
> http://alberg30.org/maintenance/SparsSailsRigging/MainSheave/ and
> http://alberg30.org/maintenance/disorganized/sheave/ Neither of these
> corresponds to that group purchase, but should be similar.


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