TURNED-EYE FLY · TIPPET
A straight-eye hook and a Turle can wrestle for as long as your patience lasts, and the loop still won’t have anywhere to sit. So look at the eye first. You tie this one before the fly is attached. The Turle forms in the tippet first, the whole fly passes through the open loop, and only then does the knot get drawn down around the hook eye. It only makes mechanical sense on a turned eye, where the loop can sit around the eye and pull in line with the shank.
Stage three is a whole fly going through a loop
What it actually does
Connects nylon or fluorocarbon fly tippet to the fly through a turned eye.
Eye requirement
Up- or down-turned fly eye. This isn’t optional.
Not appropriate
A straight eye doesn’t give the loop anywhere to sit. Check before you tie, not ten minutes into the fight.
What it’s best suited for
Turned-eye flies where you want the pull running straight down the shank instead of hanging off behind the eye — a specific fix for a specific hook style, not a default knot.
The whole fly has to fit through the loop
You form a small slip-style knot in the tippet and leave it open. The fly goes through that loop, all of it, hackle and wing included. Then you slide the knot down over the turned eye and close it. Under load the tippet pulls more directly along the shank than it would from a conventional knot sitting behind the eye. Feeding a dressed fly through an open loop without snagging anything is fussy work, and it gets slower as the light goes. Nobody ties this one fast on purpose. The ones who try end up picking hackle out of the loop.
Build the loop, then feed the fly
- Pass tippet through the turned eye and leave enough working line.
- Form the Turle’s small loop knot in the tag section while leaving it open.
- Pass the entire fly through that open loop.
- Slide the loop down over the turned eye so it surrounds the eye rather than the fly materials.
- Moisten, close the knot, and pull-test while checking orientation.
Failure clue
Check the eye before you blame the knot. A straight-eye hook is the first thing to rule out, since there’s nothing there for the loop to close around. After that, look for hackle or a wing caught as the loop went over, a knot that ended up sitting behind the eye instead of around it, or tippet heavy enough that it won’t cinch down onto small hardware at all.
The shape of the eye decides it
Use it: turned-eye flies where direct shank pull is worth the fuss. Skip it: straight eyes, full stop — the knot has nothing to work with there. Compare: Harvey Dry Fly for presentation angle, Davy or Orvis for general fly-to-tippet connections when the eye doesn’t call for a Turle specifically.
Watch + verify
The eye check comes before the first loop, not after the fly’s already through it. NetKnots has a clean reference for the Turle Knot if you want to see the loop-and-feed sequence slowed down before you try it on a fly you’d hate to lose.
Open the deeper knot workflowJob, material, route, dressing, seating, pull-test checks and the standardized comparison record.
THE SIX-MOVE CHECK
Job → Material → Route → Dress → Seat → Test
- Job. Name what the connection has to do before choosing the knot.
- Material. Confirm the line, leader, rope, wire, and hardware actually suit this structure.
- Route. Trace every pass before tightening anything.
- Dress. Put strands, wraps, and loops in their intended order with no accidental crossings.
- Seat. Tighten in the order this knot needs. More force does not repair bad geometry.
- Test. Inspect the finished shape, load it by hand when appropriate, and retie if anything moves or fails the article-specific checks.
Practice / pass test. Tie this knot three clean times without rushing. A tie passes only when it matches this article’s What to check before you trust it geometry, shows none of the listed failure clues, and survives the stated load/inspection test. If you cannot tell why one attempt is better than another, keep practicing—the lesson is recognition, not memorization.
KNOT SPEC
Turle Knot — the short answers
- ALSO CALLED
- Turle Knot, frequently misspelled Turtle Knot. Named for Major William Greer Turle, who popularized it in Victorian Britain rather than inventing it; the attribution is commonly disputed on that point. Variants include the Improved and Double Turle.
- KNOT TYPE
- Terminal fly knot tied around a turned eye, loop-and-feed
- WHAT IT CONNECTS
- Tippet to a fly with an up-turned or down-turned eye, so the pull runs down the shank. Not a line-to-line knot, not a hardware knot, and pointless on a straight eye where the loop has nothing to close around.
- LINE TYPES
- Nylon and fluorocarbon fly tippet. Not for braid, not for wire, not tied in fly line. Heavy tippet will not cinch down properly onto a small fly eye, which is where it slips.
- STRENGTH BAND
- Not a strength knot — it is chosen for fly orientation. Tied and seated correctly it is adequate for trout tippet, but it sits below the modern compact terminal knots and no one should pick it expecting an edge in breaking load.
- DIFFICULTY
- Intermediate, and fiddly rather than difficult. Forming the loop is easy. Feeding a fully dressed fly through it without catching hackle or wing is the part that costs you, and it costs more as the light goes.
- STEPS AND WRAPS
- Five moves and a small wrap count. Thread the turned eye, form the open loop in the tippet, pass the whole fly through it, slide the loop down over the eye, close it. No braid variant exists.
- TIE TIME
- Slow. Forty-five seconds to well over a minute, because the fly has to travel through an open loop. This is a home knot and a considered streamside knot, never a bite-window knot.
- POOR CONDITIONS
- Poor in low light, wind or cold hands. Threading a dressed fly through an open loop needs fine control and good sight, and any of those three conditions turns it into a snagged wing.
- THROUGH THE GUIDES
- Small and neat at the eye. It passes guides without trouble, though like any fly knot it is tied at the fly and rarely runs through them.
- LUBRICATION
- Yes. Wet before closing. Beyond protecting fine tippet, the wetted close helps the loop settle around the eye rather than binding on hackle fibers as it draws down.
- TAG END
- Leave generous working line while tying — the loop must open wide enough for the whole fly. Trim close after the orientation check. No braid difference, since braid is not a material for this knot.
- TOOLS
- None. Nippers to trim. Magnification helps a great deal, because the failure you are looking for is a fiber caught in the loop, not a loose wrap.
- BEST SUITED TO
- Trout and grayling on turned-eye flies, particularly in the British wet-fly and traditional dry-fly tradition where the knot originated. Chosen by hook style, not by species.
The strength bands are rough on purpose. Published knot tests don’t agree with each other — the same braid-to-leader knot has tested near ninety percent of line strength on one machine and under half on another, because the line brand, its diameter, how fast it got cinched, whether it was wet and whose hands tied it all move the number more than the knot does. Treat the band as a rough ranking against other fly knots, not as a figure to quote.
FIELD INTELLIGENCE
Where it earns its place, and where it costs you
Advantages
- The loop sits around the turned eye, so the pull lines up with the hook shank instead of hanging off behind the eye.
- Keeps a traditional turned-eye fly swimming and riding the way it was designed to.
- Low, neat profile at the head of the fly with nothing bulky ahead of the eye.
- Gives a clear pass or fail check — either the loop is around the eye or it is not.
Disadvantages
- The entire fly has to pass through an open loop, which is slow and snags hackle and wings.
- Straight-eye hooks rule it out completely.
- It can end up sitting behind the eye rather than around it, which removes the only reason to tie it.
- Dated relative to modern compact terminal knots, and outperformed on strength by most of them.
- Heavy tippet will not cinch down onto a small eye, so its useful range is narrow.
Use a different knot when
- Harvey Dry Fly Knot — when the goal is the tippet exit angle at a turned eye rather than a straight shank pull
- Orvis Knot — when the hook has a straight eye, or you want one compact knot for the whole box
- Davy or Double Davy — when the fly is very small and you want the fastest low-mass connection
- Improved or Double Turle — when a single Turle keeps slipping and you want the same geometry with more grip
WHAT TO CHECK BEFORE YOU TRUST IT
The Turle is a specialist, and an old one. Its argument is orientation: with the loop closed around a turned eye, the tippet pulls in line with the shank instead of levering the fly from behind the eye, which keeps a traditional wet or dry fly swimming true. That is a real benefit on the hooks it was built for and nothing at all on a straight eye. The useful check is whether the loop really finished around the eye and whether any hackle or wing fiber got trapped as it went over. The tradeoff is honest — it is slow, fussy, and not a strong knot by modern standards.
What actually makes it fail
- A straight-eye hook, so the loop has nothing to close around and slides off the front.
- Hackle or wing fibers caught in the loop as it passes over the fly, which stops the knot seating on the eye.
- The knot finishing behind the eye instead of around it, which removes the shank-pull benefit entirely.
- Tippet too heavy to cinch down onto a small fly eye, leaving the loop loose.
- Rushing the close in poor light, which is when both of the problems above happen.
How to test it, and how it ages
Wet it, draw the loop down over the eye slowly, and stop before it is tight to confirm it is around the eye and not behind it. Run a fingertip forward over the hackle and wing to feel for any fiber caught in the loop. Then close it and pull steadily along the tippet, watching whether the pull lines up with the shank or drags the fly off at an angle. A good one holds the fly straight in line under tension. If it cocks sideways, or the loop is sitting behind the eye, cut it off and start over.
Over a session: Reasonable over a session once seated correctly, though the loop can work its way behind the eye after a fish or a snag. Recheck the orientation after every fish rather than assuming it survived.
Troubleshooting
Why will it not tighten on my hook?
Check the eye. On a straight-eye hook the loop has nowhere to close and never will, no matter how carefully you tie it.
Why does the fly sit crooked under tension?
The knot finished behind the eye rather than around it, or a hackle fiber is trapped in the loop. Both mean retie.
Is this knot worth using at all now?
Only on turned-eye flies where the shank pull genuinely matters. For general fly-to-tippet work modern knots are stronger and much faster.
Why does it keep snagging the hackle?
The loop was not opened wide enough before the fly went through. Leave more working line and feed the fly slowly, hook first.
Should I use the Improved Turle instead?
If a single Turle keeps slipping on your tippet, yes. It keeps the same geometry and adds grip.
