Halyard Failure

[Brion Toss]

Originally Posted by billknny

The Vizzion that failed was 3/8", which compares reasonably well with the 9mm Spectra that is the boat designers spec. So I don't think it is a simple undersize issue.

Even a covered 9mm rope with Spectra core will be about three times stronger than the same diameter Vizzion. I don't see that as "comparing reasonably well." In addition, the polyolefin filler fibers in the Vizzion won't be able to do their job (keeping the Vectran fibers from slicing each other) very well while being crushed by a clutch. I'm sticking with the idea that the rope is not up to the loads.
Fair leads,
Brion Toss