Duncan Loop or Uni-Knot

Use to Tie fly to tippet. Creates a sliding loop that can be left open or tightened against hook eye. The open loop on this knot lets nymphs and other subsurface flies “swim” in the water and bass bugs pop better.

Step 1:

Pass 6″ to 8″ of tag end of tippet through the eye of hook. Form a 1.5″ diameter loop with tag end.

Duncan Loop or Uni-Knot - Step 1

Duncan Loop or Uni-Knot - Step 1

Step 2:

Pass tag through and around loop and tippet five times, moving away from fly.

Duncan Loop or Uni-Knot - Step 2

Duncan Loop or Uni-Knot - Step 2

Step 3:

Lubricate and tighten knot by pulling very tightly on tag end. The degree of tightening determines how knot slides on tippet for keeping loop open or sliding it closed. With heavy tippet materials (over.011″), grasp the tag end with pliers or hemostats and tighten the knot.

Duncan Loop or Uni-Knot - Step 3

Duncan Loop or Uni-Knot - Step 3

Step 4:

Adjust loop between fly and knot as desired. Trim tag end.

Duncan Loop or Uni-Knot - Step 4

Duncan Loop or Uni-Knot - Step 4