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post #11 of Old 08-04-2012
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Re: rope & wire halyards vs all rope halyards

Originally Posted by macswift View Post
Just one more thing to think about...
Are the sheaves of large enough diameter for the hi-tec line?
This stuff doesn't like to be bent through a tight radius.
Might be worth having a word with the manufacturer to find out what the minimum sheeve diameter is for the size of rope you're using.

Dyneema/spectra has the same bending radius as polyester, 8:1. But this is for best performance, most sheaves even with high tech lines are generally undersized. One of the advantages of high tech stuff is that because you can use smaller line for the same load, you get closer to the ideal.

The only line I know that absolutely must have the recommended bend is Dynex Duc, which is not generally used for standing rigging. It is so stiff it really does need the recommended radius, which is why Colligio makes special terminators for it. Otherwise strait replacement is generally considered ok.

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