Straight Bury for Eye-2-Eye

[rfwoodvt]

Just a theoretical question here. why are locking brummels and tuck brummels used to form the eyes on an eye-2-eye?

Properly whipped and stitched shouldn't a straight bury be just as strong, if not stronger?

Or is it simply an issue, as discussed in another thread, of sacrificing some strength for the added security of the tucks/locks at low loads?

Thanks for your input!!

 

[Norm_Hall]

I've been doin strate buries on eye & eyes for a couple years. Had 1 break tested and it broke above the PBS. I use em for hitch cord and secret weapon.
Why not splice 1 up and have it break tested?

 

[moray]

[ QUOTE ]
... of sacrificing some strength for the added security of the tucks/locks at low loads?

[/ QUOTE ]

I think there are two reasons, one of which is very good. At least some e2e's are too short for a proper length bury. In that case the locked Brummel provides a minimum guaranteed holding strength (roughly 1/3 nominal rope strength in some tests I have done, or about like a really bad knot, but still way better than slipping apart!). But you also see the Brummel in situations where the bury is plenty long; in that case I think it is purely cosmetic, but some people would never be comfortable without it.

 

[Brion]

I rarely see straight buries slipping, unless they are badly stitched; and I never see Brummeled ones doing so, unless improperly spaced. Properly done, I don't think there's anything to choose between them. Improperly done, slack in the Brummel or too-tight or -long stitching in the straight bury can compromise strength. As for exceeding the published breaking strength, I urge everyone to ignore it when assessing splice efficiency. This is because rope strengths vary considerably from batch to batch. So while it's good to match or exceed that PBS, it is possible to, for instance, come in under it and still have a 100% efficient splice. To get RELATIVE strength, you need to destroy different splices with the same batch of rope.
Fair leads,
Brion Toss

 

[markprz]

Rick,
I agree with Moray.... it's a comfort/aesthetic thing....
Straights shouldn't slip... that's why we make 'em.
Brummels just 'look' safer...
Perception is 9 10ths of the law!

See you soon?