SailNet Community - View Single Post - 35 year old standing rigging - but rigger says it's ok
View Single Post
post #40 of Old 09-25-2012
davidpm
Senior Member
 
davidpm's Avatar
 
Join Date: Oct 2007
Location: Madison
Posts: 4,202
Thanks: 284
Thanked 68 Times in 59 Posts
Rep Power: 9
 
Re: 35 year old standing rigging - but rigger says it's ok

OK I think I got it.
http://www.ndttech.com/Papers/Crane%...%20methods.pdf

The first couple of paragraphs says the the most wear with wire rope in crane service is rolling over the pulleys caused damage to wire.

Usually, fatigue breaks develop in segments of the rope surface that come into direct contact with a sheave or drum.


If that is the case then bad strands will show up before any other damage is critical in a crane.
With a boat since the wire don't move it can fail first in places that can not be seen.
davidpm is offline  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome