[Public-List] Rope main halyard?

[Stephen Gwyn]

I have 10mm Marlowbraid (polyester) halyards. They're a little
bigger than 3/8"=9.5mm. They are ever so slightly snug in the
1/2" slots and over the sheaves. I have internal halyards. I have
had to replace them several times. They kept getting frayed just
behind the shackle. It turns out that in the past, wire halyards
had chewed various sharp nicks into the masthead fitting.  I
replaced the aluminum plate between the sheaves and carefully
filed down the sharp parts of the masthead fitting. No fraying
now.

Going back to the original question, it's not obvious on how
(on my setup at least), how a rope halyard could jump a sheave.

SG

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Stephen Gwyn                       | Tel: 1-250-363-3136
Canadian Astronomy Data Centre     | Fax: 1-250-363-0045
Herzberg Institute of Astrophysics | Cell: 1-250-885-6969
5071 West Saanich Road             | E-mail: Stephen.Gwyn at nrc-cnrc.gc.ca
Victoria, BC, V9E 2E7, Canada      | http://astrowww.phys.uvic.ca/~gwyn/
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