Buntline Hitch
Friction on hardware · Physical hitch theory
Does not pick a knot
This page does not pick a knot for you. DNA, molecules, quantum braids and vortices stay off Decide.
Finished structure
No drawing of this exact knot yet. The written steps are the reference.
When this family fails, it fails as these. The recovered end still outranks the name.
A hitch that cinches to the ring or shackle and is not meant to break by hand.
- !Second turn tied outside — two half hitches, not a jam
- !Expected to untie after a snatch
- !HMPE without a splice — the hitch strips the cover
- !The half hitch sits on the far side of the first turn, so the end points away from the ring and it is only two half hitches.
- !It has taken a heavy load or shock and now has to come undone; it can jam too tight to untie without a marlinspike.
- !It was loaded with a gap to the ring or crossed turns, and shock loads jam it in that shape, which is harder to check and to free.
Second turn tied outside
This is two half hitches, not a buntline, and can walk
The second clove turn must sit toward the ring · step 02
Floating clove never dressed to the ring
Walks, then jams in the wrong place
Dress the clove up to the ring before load · step 03
Expected to untie after a snatch
Knife job on a painter you needed to cast off
The jam is the hitch — pick round turn and two half hitches for a release · step 04
Cannot undo after load, or walks if the clove is reversed
Check
- ?Second clove turn toward the ring
- ?Clove dressed to the ring
Then
- →Leave it if it is a standing job
- →Cut and switch hitch if you needed a release
Second turn tied outside
Check
- ?This is two half hitches, not a buntline, and can walk
- ?Inspect step 02
Then
- →Retie. Do not dress a defective structure and call it seated.
Floating clove never dressed to the ring
Check
- ?Walks, then jams in the wrong place
- ?Inspect step 03
Then
- →Retie. Do not dress a defective structure and call it seated.
Expected to untie after a snatch
Check
- ?Knife job on a painter you needed to cast off
- ?Inspect step 04
Then
- →Retie. Do not dress a defective structure and call it seated.
Same failure class, different geometry. Open the plates — Diagnose still starts from the symptom.
What holds it
- ·A hitch is object-dependent. Remove the spar, cleat, ring or pile and the structure is usually the unknot.
- ·Bayman / Maddocks–Keller describe a no-slip regime from wrap count and friction. The prediction is approximate, and only for hitches.
What topology does not predict
- ·Closed-loop knot invariants (Jones, Alexander) do not say whether a clove hitch will walk on a smooth spar.
- ·No manufacturer working load is implied by wrap count.
- ·Wet, iced, or HMPE covers change friction — topology is silent.
Not for
- ·Joining two free rope ends — that is a bend
- ·A standing loop that must survive after the object is gone
- ·A job you must undo by hand after load (it jams)
- ·HMPE without a splice
Same pattern, different job
No sourced twin among these knots. Related knots stay on the Library card.
- Crowell — The physics of knots (Bayman / Maddocks–Keller) — Bayman 1977 hitch theory; Maddocks & Keller 1987 extension. No equally good general theory for all knots.
- Sano et al. — Inner workings of the clove hitch (Extreme Mechanics Letters, 2022) — Elastic rod on a rigid cylinder. Empirical hitch mechanics.
- Knot — practical vs mathematical (Wikipedia) — Closed-curve knot theory ignores friction. Practical knots are classified by function.
- Animated Knots — Buntline Hitch
- WhyKnot — Learn How To Tie A Buntline Hitch Knot — Cited tying video already attached to this record.