What is the McDonald Brummel Splice used for?

Making locked eyes in Dyneema line for sailing (sheets, halyards, textile stays); Making high-performance loops for slacklines and lightweight suspension systems; Creating eyes in single-braid rope for arborist work and lightweight rigging; Terminating synthetic rope while keeping nearly all of its breaking strength; Making the eye when the final rope length isn't known yet.

How do you tie the McDonald Brummel Splice?

The McDonald Brummel Splice is a way of making a locked brummel eye in high-modulus single-braid rope, such as Dyneema and HMPE, working from just one end. Unlike the method where the rope is passed back through itself along its full length, this technique locks without needing the total rope length defined in advance. Follow the illustrated step-by-step, with a photo for every stage, on Desbravai.

Is the McDonald Brummel Splice hard to tie?

The McDonald Brummel Splice is rated hard, in the Whipping & Care category and is taught with a photo at every stage on Desbravai.

What precautions apply when using the McDonald Brummel Splice?

Requires single-braid rope; it doesn't work on double-braid or twisted (laid) rope; The bury length must be sufficient (a common rule of thumb is about 72x the diameter) to reach near-100% strength; The brummel lock is what keeps the eye from opening under light load; never skip it.

McDonald Brummel Splice

Q: What other names does the McDonald Brummel Splice have?

It is also known as McDonald Brummel Splice, Empalme Brummel McDonald, Emenda Brummel McDonald, Locked Brummel (McDonald method).

Makes a locked brummel eye in single-braid rope using only one end, faster than the classic method

Also called: McDonald Brummel Splice, Empalme Brummel McDonald, Emenda Brummel McDonald, Locked Brummel (McDonald method)

What it is for

Making locked eyes in Dyneema line for sailing (sheets, halyards, textile stays)
Making high-performance loops for slacklines and lightweight suspension systems
Creating eyes in single-braid rope for arborist work and lightweight rigging
Terminating synthetic rope while keeping nearly all of its breaking strength
Making the eye when the final rope length isn't known yet