Double Braid Whipping

[Adam_P]

I'm curious why some instructions say to whip and lock stitch (neropes) and others (samson) just call for lock stitching.

Obviously, the lock stitching makes total sense to me, but what's the purpose of the whipping on a double braid class 1 eye?

 

[NickfromWI]

CYA.

Just stitch it. We got bigger problems if we are relying on the heft of the whipping to provide security to a splice.

All it needs to do is hold the splice together at super low loads. After that, the splice can handle the rest.

 

[Adam_P]

Yea, the whipping just doesn't seem like it really does anything. It's funny how we do things just because that's how it's always been done, even though it has no practical purpose anymore.

I'll stick to the stitch with db. Thanks, Nick!

 

[rich_h]

The one advantage to the whipping is that it provides a way to inspect the core of the rope, which you cannot otherwise achieve. If the parallel wraps of the whipping twine are seriously distorted for some reason it may suggest that you have somehow overloaded the rope and the splice may not be functioning as it once did....

I realize this is a bit of a stretch, but it is the only method of post splice core inspection that I can think of... I typically use a combination whipped lock-stitch to get the functionality of the lock stitch with the parallel wraps of the whip for potential inspection.

 

[oceans]

I can see the value of lock stitching for the repetitive light loads that may begin to pull a bury apart, but more-so with a hollow braid.

Has any testing been done with a DB line to determine how a splice could be degraded from repetitive light loads?...some sort of machine to replicate that in a short time?

A great deal of my ability to enjoy life is due to suspending dis-belief, but I REALLY want to see a DB coming apart with light loads.

 

[rich_h]

I don't think repetitive light loads on a straight pull would be an issue as the splice would clamp down on itself...light loads on a slight side pull could be something entirely different...I think that is the true reason for the stitching as we rarely treat anything to a perfect straight pull...

 

[TimberJack]

Double braids not necessarily 24 strand climb line, but I'm talking rigging rope like Yale Polydyne, NE Sta-set, ect. back out relativly easy under low load stituations. As rich h stated the ability to inspect these splices is crucial.

 

[Adam_P]

That's the extra "why" I was looking for. Interesting stuff.