Zeppelin Bend
6-and-9 bend. Holds and unties. Not a mismatch join.
Intermediate · Polyester / Nylon rope / Polypropylene / Natural fibre
Connection card
Zeppelin Bend
For rope → rope join.
This card does not say how strong the knot is. A retention figure comes from a bench, in one material, at one diameter, tied by somebody who ties it all day — and the line in your hand is none of those. What it does tell you is whether the thing you have just tied is the thing the record describes.
What this plate is telling you
6-and-9 bend. Holds and unties. Not a mismatch join.
Save this as a picture and it works with a dead signal and a nearly dead battery, which is when a joint is most often tied badly. The rest of this page — the steps, the seating sequence, the failure modes and the bench — is for the evening before.
Why this knot
What it earns its place with, what it costs, and what to reach for instead.
- A 10-second join you will cut anyway (sheet bend is faster)
- Extreme diameter mismatch (double sheet bend or splice)
- Forming the 9 with its working end on top, so both loops have the same handedness and the knot becomes Hunter's bend
- Laying the loops with both working ends on the same side, or with one end between the standing parts
- Passing a working end through only its own loop, or both ends through the shared hole in the same direction
- Letting a working end draw back out of the hole while pulling the standing parts
- Sheet BendBeginner
Join two ropes of unequal or similar diameter
- Carrick BendIntermediate
Joining two heavy ropes or hawsers with a bend that stays easy to undo after it has been loaded
- Hunter's BendIntermediate
Joining two ropes of roughly the same size where the join does not need untying later
Before you start
- ·Use two ropes of similar size. If one is much thicker than the other, use a sheet bend, the usual bend for ropes of different sizes.
- ·The two loops are mirror images: the 6 has its working end on top of its standing part, and the 9 has its working end underneath.
- ·Animated Knots says it can be untied after heavy loading but not while it is still under load.
- ·For critical loads, Animated Knots says to leave the tails much longer than in its animation.
Step 1 of 4 · move 1 of 1. Make a 6 in one rope and a 9 in the other, with the working ends on opposite sides
Space plays or pauses. Keys 1, 2, 3 and 4 set the speed. Arrow keys change the move.
swipe to step
01.1
Make a 6 in one rope and a 9 in the other, with the working ends on opposite sides
- Hold:
- Left hand holds the 6 open
- Move:
- Right hand forms the opposed 9 without letting either self-cross flip
You should now see: A 6 and a 9: one working end crosses above its standing part and the other below.
Form a loop shaped like the number 6 in the end of the first rope, with the working end crossing on top of its standing part.
Seen from above, the rope reads as a 6: a round hole with the standing part leading away from it and the working end lying over the standing part where they cross.
Crossing the working end under the standing part, or starting with two ropes of very different thickness. Check which strand is on top at the crossing, and hold the two ropes side by side.
Fix: Re-form the loop with the working end on top. If one rope is much thicker than the other, use a sheet bend instead, the usual bend for ropes of different sizes.
Why: Which way the working end crosses sets the handedness of this loop. The second loop has to be its mirror image; two loops of the same handedness give Hunter's bend, which looks similar but is a different knot.
- Used on a large diameter mismatch — Thinner rope walks out of the lock. Similar diameters only; mismatch is a double sheet bend.
arrow keys work
Tying procedure — Zeppelin Bend
Step 01 / 4
Form a loop shaped like the number 6 in the end of the first rope, with the working end crossing on top of its standing part.
You should now see: Seen from above, the rope reads as a 6: a round hole with the standing part leading away from it and the working end lying over the standing part where they cross.
If it goes wrong: Crossing the working end under the standing part, or starting with two ropes of very different thickness. Check which strand is on top at the crossing, and hold the two ropes side by side.
Fix: Re-form the loop with the working end on top. If one rope is much thicker than the other, use a sheet bend instead, the usual bend for ropes of different sizes.
Why: Which way the working end crosses sets the handedness of this loop. The second loop has to be its mirror image; two loops of the same handedness give Hunter's bend, which looks similar but is a different knot.
Step 1 of 4 · move 1 of 1
Make a 6 in one rope and a 9 in the other, with the working ends on opposite sides
Hold: Left hand holds the 6 open
Move: Right hand forms the opposed 9 without letting either self-cross flip
You should now see: A 6 and a 9: one working end crosses above its standing part and the other below.
Step 02 / 4
Form a loop shaped like a 9 in the second rope, with its working end crossing under its standing part. Lay the 6 on top of the 9 so the holes line up and the working ends point out on opposite sides.
You should now see: One shared hole through both loops, the two standing parts leading away in opposite directions, and each working end outside the standing parts rather than between them.
If it goes wrong: Both working ends on the same side of the hole, or one tucked between the standing parts. Usually the 9 was formed with its end on top, or it was turned over when laid down.
Fix: Lift the 9 away, re-form it with the working end under its standing part, and slide it under the 6 again so the two working ends point away from each other.
Why: Wikipedia's account of this method stresses that the working ends sit on opposite sides of the holes and outside the standing parts. That arrangement lets the two tucks in step 3 pass each other through the middle.
Step 2 of 4 · move 1 of 1
Lay the 6 over the 9 so the two holes line up
Hold: Left hand keeps the lower 9 flat
Move: Right hand brings the 6 over it until the openings share one centre
You should now see: The bights overlap without changing their chirality: top working end over itself, bottom working end under itself.
Step 03 / 4
Take the 6's working end down around the outside of both loops and up through the shared hole. Take the 9's working end up around the outside of both loops and down through the hole.
You should now see: Each working end passes through both loops. One comes up out of the hole and the other goes down through it, running past each other in opposite directions.
If it goes wrong: A working end that goes through only its own loop, or both ends through the hole in the same direction. Lift the pair and look: there should be two ends in the hole, one entering from each side.
Fix: Pull the stray end back out, take it around the outside of both loops, and pass it through the hole in the opposite direction to the other end.
Why: The direction matches the crossing from steps 1 and 2: the end that crossed on top of its standing part comes up through the hole, and the end that crossed underneath goes down.
Step 3 of 4 · move 1 of 1
Pass both working ends past each other through the common centre
Hold: Left fingers keep the two overlapped bights open
Move: Right hand feeds one end down through the centre and the other up through beside it
You should now see: Both ends pass through the same middle opening in opposite directions; neither simply crosses over the centre.
Step 04 / 4
Pull the two standing parts in opposite directions, slowly, while pinching the working ends so they do not draw back out of the hole.
You should now see: A compact, symmetrical knot of two interlocked loops, with one tail leaving each face on opposite sides and both tails still close to their starting length.
If it goes wrong: Letting a working end slide back through the hole while pulling. The knot comes out lopsided or one tail is suddenly much shorter, which means it has not locked.
Fix: Take the load off, open the knot by pulling its two outer loops away from each other, and retie from step 1.
Why: Animated Knots notes it can be untied after heavy loading but not while under load, and that for critical loads the tails should be left much longer than in its animation.
Step 4 of 4 · move 1 of 1
Pull both standing parts and both working ends to dress the two interlocking overhands
Hold: Left hand controls the two parts leaving the left side
Move: Right hand alternates the opposite pair until the body seats symmetrically
You should now see: Two compact interlocking overhands, with the working ends leaving opposite sides of the centre and no strand flipped into Hunter's form.
What this is based onReference review, not yet tied
- Record
- Reviewed 2026-08-14. 2 sources are cited for this record.
- Drawing
- Checked against published references and found to be this knot. Not yet tied from the drawing. Recorded 2026-09-21.
- Known limits
- None that stop a reader following it were confirmed in the plate audit of 2026-09-24; smaller findings were not all re-checked.
- Older drawing
- An older drawing of this knot is withdrawn and shown nowhere. The audit's reason: No over/under at any crossing, so the interlock that defines the Zeppelin cannot be read and the drawing matches no specific bend.
- Strength
- Not established. No credible, comparable strength data exists for this knot, so no figure is shown.
Watch the tie
Drawn from this knot's sequence — the same rope as the steps. Not a recording of hands. It does not start until you press play.
Another recording
The Zeppelin Bend KnotWhyKnot · Opens on YouTubeAn outside recording of this construction. It is not the drawing above, and nothing here loads from YouTube until you follow the link.
Seating sequence — where failures are born
The step list compresses the finish. Run these phases in order, one at a time.
01 Form
Build the structure loose enough to see every turn.
None. Shape first.
02 Dress
Nest every turn. Crossed parts will walk or jam.
Light — hold the shape.
03 Set
Load the standing part so the intended turns take the strain.
Working load, not a snatch.
04 Check
Confirm the lock still breaks or inspects as the job requires.
None extra.
05 Commit
Only load it after the structure reads correct. Wrong means remake.
Working load, not a snatch.
Finished structure — what correct looks like
Drawn from a rope model of this knot: which strand passes over which comes from where the rope actually lies.
- Structure
- Six in one rope, nine in the other, working ends opposite; each working end through the centre of both loops
- Standing line
- Both standing parts leave on-axis from the interlocked loops
- Tag end
- Tails exit opposite sides of the two-loop lock
- Wraps
- Two interlocked loops — if it looks like a sheet bend, restart
- Seating
- Pull both standing parts so the 6-and-9 closes into the two-loop lock
Verify before you load it
Every line is pass or fail. One fail means retie — do not load a knot you argued with.
- 01Six in one rope, nine in the other, working ends opposite; each working end through the centre of both loops
- 02Pull both standing parts so the 6-and-9 closes into the two-loop lock
- 03Tails exit opposite sides of the two-loop lock
- 04Two interlocked loops — if it looks like a sheet bend, restart
- 05Same-side tails or a missed centre pass will not lock
- 06Two interlocked loops, tails opposite, standings loaded. Not a splice
Field notes — dark, cold, gloves
- ·Dress is the lock. A pretty knot that is not dressed is not finished.
- ·HMPE usually wants a splice, not a hitch you learned in polyester.
- ·If you cannot break or inspect it under the load you expect, it is the wrong job.
When this family fails, it fails as these. The recovered end still outranks the name.
Two interlocking overhands or a Carrick lattice — tails on the documented sides.
- !Tails on the wrong sides of the bend
- !Broken lattice or a reef-knot form in disguise
- !Undressed so one overhand takes the whole load
- !A working end slides back through the shared hole during tightening, so the knot sets lopsided and has not locked
- !The loops have the same handedness, which ties Hunter's bend. Animated Knots calls it less satisfactory and hard to tell apart.
- !One working end goes through only its own loop instead of through both loops, which leaves the knot incomplete
Both working ends on the same side
Bend will not lock and spills under load
The 6 and the 9 must have opposite working ends · step 02
One end missing the second loop
Unfinished 6-and-9 — looks like a sheet bend and will slip
Each working end must pass through the centre of both loops · step 03
Used on a large diameter mismatch
Thinner rope walks out of the lock
Similar diameters only; mismatch is a double sheet bend · step 01
Bend spills or will not dress into two loops
Check
- ?Opposite working ends
- ?Two interlocked loops
Then
- →Retie the 6-and-9
- →Step to double sheet bend on a mismatch
Both working ends on the same side
Check
- ?Bend will not lock and spills under load
- ?Inspect step 02
Then
- →Retie. Do not dress a defective structure and call it seated.
One end missing the second loop
Check
- ?Unfinished 6-and-9 — looks like a sheet bend and will slip
- ?Inspect step 03
Then
- →Retie. Do not dress a defective structure and call it seated.
Used on a large diameter mismatch
Check
- ?Thinner rope walks out of the lock
- ?Inspect step 01
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.
Get it right with everything in your favour0/5 clean
Nothing logged on this knot yet, so it starts on the bottom rung.
Good light, dry hands, a table. Until the sequence is automatic here there is nothing for the harder rungs to test — you would only be learning that difficult conditions are difficult, which you already knew.
How · Tie it, check it against the list, log it. Five clean and the ladder opens.
Nothing marked. Log it clean, or mark what happened first.
Strength, and where the number comes from
Not established
The '~70–85%' it used to carry is not in the rope-knot literature review and is not on any page we could find that carries a test behind it.
Percentages come from published tests on their own line, their own knot-tyer and their own pull rate. Yours is a different system. Treat a figure as a reason to test, not as a result you already have.
- Animated Knots — Zeppelin Bend
- WhyKnot — The Zeppelin Bend Knot
Cited tying video already attached to this record.
Record reviewed 2026-08-14
Vetted references
- Animated Knots — Zeppelin Bend
Animated Knots by Grog
- The Zeppelin Bend Knot
WhyKnot
Take the Working deck quiz — can you recognise this knot's finished state and failure modes?
Check the finished knot against what correct looks like before you load it.