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Coil on a coating

Needle Knot

Coil on coating

DiagramsHow to tie it

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.

HTH · Reference layout

Needle Knot — finished-state checks, on the shared reference layout

Needle Knot — finished-state checks, on the shared reference layout
Hook the Horizon reference plate
Failure modes

When this family fails, it fails as these. The recovered end still outranks the name.

HTH · Advanced failure modes

Needle Knot — what fails and what to do

Needle Knot — what fails and what to do
Hook the Horizon reference plate
Fly / tippet family

Fine tippet at the eye, or fly-line to leader with a tube or nail.

  • !Hitch path around the eye instead of through it
  • !Single pass where two were the job
  • !Gap at the tube or nail on a fly-line join
Fails when
  • !Coating split by the needle, leaving a weak spot the wraps cannot cover
  • !Butt not passed back under the wraps, so the coil unwinds when the leader is pulled
  • !Wraps crossed or gapped, so the coil does not close evenly
  • !Coil set away from the side hole, so the leader bends where it leaves the fly line
Geometry

  • Gapped wraps on the fly-line tip

    Leader slides off the coating

    The coil must sit even on the fly line, not in the air · step 02

  • Shallow needle path or coil not on the fly line

    Walks out of the coating

    Insertion depth is the trap; a surface coil is a Nail Knot without the nail · step 01

  • Needle nicked the core

    A dead fly line — not a knot you can dress out

    Core damage is a cut-off, not a retie of the same coil · step 01

If you saw this

  • Leader slides off fly-line tip

    Check

    • ?Coil uniformity on tip

    Then

    • →Retie
    • →Confirm needle path did not cut core

  • Leader exits off-center from the fly-line core.

    Check

    • ?Look for: Leader exits off-center from the fly-line core.

    Then

    • →Retie with a centered insertion path.

  • Fly-line coating splits at the insertion.

    Check

    • ?Look for: Fly-line coating splits at the insertion.

    Then

    • →Use a compatible needle size; inspect coating.

  • Leader pulls free under moderate load.

    Check

    • ?Look for: Leader pulls free under moderate load.

    Then

    • →Increase insert depth and finish correctly.

  • Water entry softens the joint after a day.

    Check

    • ?Look for: Water entry softens the joint after a day.

    Then

    • →Retie; consider a sealed finish method.

  • Finished check failed — leader is forced into incompatible construction

    Check

    • ?leader sits centered in a compatible fly-line core
    • ?core/coating is not split
    • ?external securing turns are compact and smooth

    Then

    • →Retie. fly-line damage or transition pullout.

  • Gapped wraps on the fly-line tip

    Check

    • ?Leader slides off the coating
    • ?Inspect step 02

    Then

    • →Retie. Do not dress a defective structure and call it seated.

  • Shallow needle path or coil not on the fly line

    Check

    • ?Walks out of the coating
    • ?Inspect step 01

    Then

    • →Retie. Do not dress a defective structure and call it seated.

  • Needle nicked the core

    Check

    • ?A dead fly line — not a knot you can dress out
    • ?Inspect step 01

    Then

    • →Retie. Do not dress a defective structure and call it seated.
Same family

Same failure class, different geometry. Open the plates — Diagnose still starts from the symptom.

This failed — start Diagnose

What holds it

  • ·Nail and needle knots live on a fly-line coating (and, for the needle, a pierced core). The coil is the join.
  • ·A nicked core is a dead tip, not a knot you can dress out.

What topology does not predict

  • ·Coating diameter and core integrity are not topological invariants.
  • ·Loop-to-loop vs nail is a job choice already in Decide.
  • ·No rating is invented for hollow vs solid fly line.

Not for

  • ·Braid-to-fluoro in the guides as a general-purpose join
  • ·Fishing a scored, pierced tip
  • ·Braid-to-leader offshore joins
  • ·No-tool bankside reties

Same pattern, different job

No sourced twin among these knots. Related knots stay on the Library card.

Sources