Useful Fly Fishing Knots

The following knots can be useful when setting up your fly line.

( Reproduced with the kind permission of Scottish angler John Gray. See: Grays of Kilsyth and Trout & Salmon Fishing ..... Thanks John! )

The Constriction Knot

A simple method of attaching most types of backing line and leader materials to a traditional type of PVC coated fly line.

(1) Overlap the fly line and backing line by around 12 inches.

(2) Take the end of the backing line and fold it over itself and the fly line to form a loop and grip the point of overlap (A) firmly between the thumb and forefinger of the right hand.

(3) Bring the end of the backing through the loop half a dozen times.

(4) Carefully draw the turns together while sliding the whole knot towards the tip of the fly line. With the turns of the knot touching, pull steadily on both ends of the backing until the knot grips the fly line tightly. Check the security of the knot by pulling the backing and fly line firmly in opposite directions. When satisfied, trim the ends closely.

How to tie this useful fly fishing knot
How to tie this useful fly fishing knot
How to tie this useful fly fishing knot
How to tie this useful fly fishing knot

The Reel Knot

A simple and reliable knot which can be used to secure backing line to the reel.

For added security, take the backing round the reel drum twice before tying the knot.

After pulling the slip knot tight, trim the loose end but not too close to the knot.

How to tie this useful fly fishing knot

Loop to Loop

A simple and effective method of attaching a leader to the fly line.

How to tie this useful fly fishing knot

The Gray's Loop

Another interesting version of the Constriction knot, which can be used to attach a semi-permanent loop of nylon monofilament to the end of a traditional fly line.

This nylon loop facilitates a loop to loop connection with the leader. Such a loop might last a whole season before needing replaced.

Follow the same procedure as for the Constriction Knot, but with a doubled length of monofilament nylon. Starting with a length of about 18 inches (half a metre) of nylon makes it easier to pull the knot tight. Also start with as small a loop as possible, held between the right thumb and forefinger (figure 1), if you want to create a small loop (although a loop of anything up to around three inches long works fine) Use a minimum of three turns.

Carefully draw the knot together while sliding the whole knot towards the end of the fly line. With the turns of the knot touching, pull steadily on both ends until the knot grips the fly line tightly. Check the security of the knot by pulling steadily with a finger in the loop. When satisfied, trim the ends closely. The strength of the nylon will vary with the weight of fly line and breaking strain of leader. As an approximate guide I would suggest the following:

Fly Line #3 / Loop nylon 10 lb / Leader nylon 2 to 5 lb

Fly Line #4 / Loop nylon 10 lb / Leader nylon 3 to 5 lb

Fly Line #5 / Loop nylon 10 lb / Leader nylon 3 to 5 lb

Fly Line #6 / Loop nylon 12 lb / Leader nylon 4 to 6 lb

Fly Line #7 / Loop nylon 12 lb / Leader nylon 6 to 8 lb

Fly Line #8 / Loop nylon 15 lb / Leader nylon 8 to 10 lb

How to tie this useful fly fishing knot
How to tie this useful fly fishing knot
How to tie this useful fly fishing knot
How to tie this useful fly fishing knot