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KA

← Where the theory applies
Terminal — hardware eye

Turle Knot

Constriction · Wrap stack

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

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

Turle 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.

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
  • !Pulled tight before the loop is behind the eye, so the knot sets on the front of the eye and the fly hangs at an angle
  • !Double overhand tied with only one pass, which grips the tippet less
  • !Tied to a straight-eye fly, with no room behind the eye for the loop to close
Geometry

  • Collar sitting mid-shank instead of the eye

    Fly cocks off-axis

    A Turle collars the eye; a shank cinch is a different knot · step 02

  • Incomplete cinch on a ring eye

    The knot rolls and the fly fishes off-axis

    Ring eyes that will not take a collar need a different terminal · step 03

  • No loop formed to collar the eye

    You cannot Turle without the loop

    The loop around the standing part is the collar · step 01

If you saw this

  • Fly cocks off-axis or knot slips

    Check

    • ?Fly alignment with tippet

    Then

    • →Retie
    • →Consider Orvis/Davy for pure strength

  • Finished check failed — Used on a straight-eye where it does not seat

    Check

    • ?Loop seats behind a down-eye or turned-up eye as intended
    • ?Knot draws up cleanly on the eye neck
    • ?Fly rides true

    Then

    • →Retie. Wrong eye type or incomplete seat ruins fly tracking.

  • Collar sitting mid-shank instead of the eye

    Check

    • ?Fly cocks off-axis
    • ?Inspect step 02

    Then

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

  • Incomplete cinch on a ring eye

    Check

    • ?The knot rolls and the fly fishes off-axis
    • ?Inspect step 03

    Then

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

  • No loop formed to collar the eye

    Check

    • ?You cannot Turle without the loop
    • ?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

  • ·The eye is hardware. The knot is an open tangle around that eye. Ends stay ends.
  • ·Seating (wet set, even wraps, tag orientation) is the mechanical record already on the knot. Theory adds no extra rating.

What topology does not predict

  • ·Trefoil / unknot classification does not apply to a Palomar or clinch.
  • ·Fluoro glaze, pigtail slip and nick-at-the-guides are forensic, not topological.
  • ·No strength percentage is computed here.

Not for

  • ·A free-swing lure loop — use a non-slip loop family
  • ·Using an invariant as a reason to keep a glazed terminal
  • ·Maximum strength critical tippet (modern compact knots often preferred)
  • ·Braid

Same pattern, different job

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

Sources