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Euro nymph · Brown Trout

Pascal Cognard 18-Foot Euro Nymphing Leader

Pascal Cognard's 18-foot euro nymphing leader: a long, even taper from 18 inches of .018 mono through .016, .014, .012 and 1X to a 20 inch 3X sighter of Cortland bi-color indicator mono, an 8 inch step of 5X and 79 inches of 6X. It turns over a weighted nymph on a 3-5 wt rod and keeps the fly in direct contact, with no indicator and no split shot. There's also a 7X variation; see the questions below.

BBy BarblessOctober 14, 2026

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.018"
.016"
.014"
.012"
~11.5 lb1X.010"
7.2 lb3X.008"
Cortland Indicator Mono Leader Material - Bi-color
~4.5 lb5X.006"
~3.5 lb6X.005"
BUTT · 18"
TAPER · 20"
TAPER · 22"
TAPER · 24"
TAPER · 26"
SIGHTER · 20"
TIPPET · 8"
TIPPET · 6.6 FT
Total length18' 1"
Rod3-5 wt
Flies1
Knots8
WaterFreestone river, Tailwater

Drag the drawing to pan. Tap a fly for what it does, a knot for how to tie it.

Build your leader

18' 1" of line · 8 pieces · Butt to tip

Butt .018"2345Sighter5X6X

Tie it

0 of 8 done

These are the finished lengths. Leave extra for tying each knot.

How to tie it

  1. Build the tapered leader

    Join the 18" butt to the 20" mid with a blood knot. Add 22" of .014" with a blood knot. Add 24" of .012" with a triple surgeon's knot. Add 26" of 1X with a triple surgeon's knot. Add 20" of 7.2 lb with a triple surgeon's knot. Add 8" of 5X with a triple surgeon's knot. Add 6.6 ft of 6X with a triple surgeon's knot.

    Tie a blood knotTie a triple surgeon's knot

  2. Tie on the Tungsten Perdigon

    Tie the Tungsten Perdigon to the 6.6 ft tippet with an improved clinch knot.

    Tie an improved clinch knot

The knots

  • Blood knot · 5 turns×2
    1. Overlap the two ends by about six inches.
    2. Wrap one tag end around the other line five times, then bring it back and pass it between the two lines where they cross.
    3. Wrap the other tag end five times the opposite way and pass it back through the same opening from the other side.
    4. Wet the knot and pull the two standing lines steadily until the wraps seat. Trim both tags close.
    The blood knot, step by step
  • Triple surgeon's knot · 3 turns×5
    1. Lay the new line alongside the end of the leader so they overlap about six inches, the ends pointing opposite ways.
    2. Holding the two lines as one, tie an overhand knot, passing the whole new piece through the loop.
    3. Pass the same ends through the loop twice more, three times in all.
    4. Wet it and pull all four ends evenly to seat the knot. Trim the tags.
    The triple surgeon's knot, step by step
  • Improved clinch knot · 5 turns×1
    1. Pass the tippet through the hook eye and pull about five inches through.
    2. Wrap the tag around the standing line five to seven times.
    3. Pass the tag through the small loop just above the eye, then back through the large loop you just made.
    4. Wet it and pull the standing line so the wraps snug down against the eye. Trim the tag.
    The improved clinch knot, step by step

When and how to fish it

Fish it on riffles, pockets and runs where you can stand close. Cast the tungsten nymph upstream on a short line, lift the rod so the leader comes off the water, and lead the fly downstream at about the speed of the current. Watch the bi-color sighter just above the surface and set on any pause or twitch. Change the bead weight to match the depth before anything else.

If the fly is not touching bottom, go up a bead size rather than adding weight to the leader.

Common questions

  • Which tippet should I use?

    The build is the same either way up to the tippet, 79 inches of .005 (6X) or .004 (7X). Go finer for smaller flies and clear, flat water.

  • Where is the sighter?

    The 20 inch 3X section is the sighter, tied in Cortland bi-color indicator mono at .008. Keep it just above the water to read the drift and the take.

  • Do I need split shot or an indicator?

    No. The tungsten nymph carries the weight and the sighter shows the take. Adding shot or a float changes it into a different rig.

  • Why so long a tippet?

    79 inches of 6X lets a weighted nymph sink quickly with little drag, and keeps the thicker leader well away from the fish.

Brown TroutRainbow TroutCutthroat TroutEuroNymphFreestoneTailwater

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