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KA

← Where the theory applies
Bend — two lines

FG Knot

Wrap stack · Constriction

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.

Schematic — the FG Knot family, shared by 6 knots in this catalogueFinished structure. Heavy leader straight; thin braid plaited over it as a sleeve; locking hitches at the end.
finished · schematic

Heavy leader straight; thin braid plaited over it as a sleeve; locking hitches at the end.

Finished structure

Heavy leader straight; thin braid plaited over it as a sleeve; locking hitches at the end.

HTH · Reference layout

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

FG 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

FG Knot — what fails and what to do

FG Knot — what fails and what to do
Hook the Horizon reference plate
FG / Alberto family

Braid wrapped onto a heavier leader, then locked so the join cannot hinge.

  • !Hinge at the material transition — the join clicks, then parts
  • !Wraps not packed on the heavier line before the lock
  • !Lock or tag on the wrong side of the braid, so the column unzips
Fails when
  • !Braid slack while the wraps were laid
  • !A skipped alternation or loose wrap in the weave
  • !Weave not locked with half hitches
  • !No hard final pull to tighten the weave before fishing
Geometry

  • Crossed lower FG wraps

    Load concentrates and the weave slips off the leader

    FG is distributed braid compression, not a barrel you can bunch · step 02

  • Weave left loose — uncompressed leader will dump

    Catastrophic slip under load

    Incomplete seating leaves the leader uncompressed · step 04

  • Lock hitches missing or walking

    Unlock under cyclic casting load

    The finish hitches stop the weave from walking · step 03

  • Leader exits off-axis through the jacket

    Uneven compression; hinge risk

    Braid must jacket the leader on-axis · step 02

If you saw this

  • Braid slides off leader

    Check

    • ?Inspect for gaps in the weave
    • ?Pull-test before fishing

    Then

    • →Retie under firm leader tension
    • →Add wraps
    • →Practice on the dock, not in a fish fight

  • Cannot keep wraps neat

    Check

    • ?Try with heavier practice braid first

    Then

    • →Use Alberto or Double Uni until FG is reliable
    • →Build muscle memory with 20 practice reps

  • Braid coils look alternating-open or uneven before locks.

    Check

    • ?Look for: Braid coils look alternating-open or uneven before locks.

    Then

    • →Retie with even tension; count and maintain direction.

  • Weave slides on the leader before half-hitches engage.

    Check

    • ?Look for: Weave slides on the leader before half-hitches engage.

    Then

    • →Add wraps for material; seat weave firmly before locks.

  • Leader shows whitening, kink, or deep deformation under the weave.

    Check

    • ?Look for: Leader shows whitening, kink, or deep deformation under the weave.

    Then

    • →Match diameters; wet and draw progressively; retie if crushed.

  • After a day of casting, the junction hangs in guides.

    Check

    • ?Look for: After a day of casting, the junction hangs in guides.

    Then

    • →Trim tags, re-dress locks, or switch to a slimmer connection family.

  • Finished check failed — loose or alternating-open braid coils

    Check

    • ?braid weave is evenly tensioned around a straight leader
    • ?locking half-hitches are compact and do not walk
    • ?leader is not visibly crushed or kinked

    Then

    • →Retie. slip, guide impact, or leader damage under load.

  • Crossed lower FG wraps

    Check

    • ?Load concentrates and the weave slips off the leader
    • ?Inspect step 02

    Then

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

  • Weave left loose — uncompressed leader will dump

    Check

    • ?Catastrophic slip under load
    • ?Inspect step 04

    Then

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

  • Lock hitches missing or walking

    Check

    • ?Unlock under cyclic casting load
    • ?Inspect step 03

    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

  • ·A bend captures two working ends. Holding is constriction and the seated wrap or barrel — not a closed-knot invariant.
  • ·Unequal diameters and slick pairs (braid to fluoro) are material problems. Crossing number does not rank FG against a Double Uni.

What topology does not predict

  • ·A Jones polynomial does not pick a braid-to-leader family.
  • ·Published retention bands stay as cited on the knot record. This page does not invent one.
  • ·Guide-click and tag-trim are field geometry, not topology.

Not for

  • ·Attaching a single line to a spar or cleat — that is a hitch
  • ·Reading this page as a recommendation from Decide
  • ·Beginners needing a fast re-tie in wind
  • ·Joining two similar mono lines (use Double Uni or Blood)

Same pattern, different job

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

Sources