Turtle Knot: The Turle knot is often used in Salmon fly fishing with up eyed irons. The knot rests at the top of the hook shank behind the center eye with the line coming through the center parallel, enabling the fly to swim straight in running water. It is used to optimize the attractiveness to the fish.

• Slide the fly up the line away from the knot.
• Pull the fly down the line to the knot and slip it through the loop. Hold the eye between the fingers and pull on the line closing the loop at the center of the hook.
• Pull the first part of the knot tight. This will leave an open loop at the end.
• The knot allows the fly to swim parallel and straight to the mainline.