The Double Knot

Variations And Applications

The single-strand Double knot is just an extension of the Simple knot. Being considerable bigger than the Simple knot though, it is an ideal terminator for a Slip knot...

That is, the Double knot will not allow the end of the line to pull through the turns of the Slip knot, once pulled up tight against the turns.

Knowing your knots is particularly handy if you make your own kites at home...

The Big MBK Book Bundle is a collection of downloads - printable PDF files which provide step-by-step instructions for many kites large and small.

The Double Knot - Single Strand

Knot Tying Illustration - The Double Knot.1. Around and over
The Double Knot - 33. Under and through
The Double Knot - 22. Under and through
The Double Knot - 44. Pull tight

Another possible use is to prevent a Prusik knot from pulling through, since they do tend to work through a bit after being locked and unlocked numerous times. So far, I haven't had any trouble just using a Simple knot as the terminator - but you could use the Double just for peace of mind!

The Double Knot - Multi-Strand

The Multi-Strand Double Knot - 1
The Multi-Strand Double Knot - 3
The Multi-Strand Double Knot - 2
The Multi-Strand Double Knot - 4

If you ever need to cut and then re-join a piece of bridle line, the Multi Strand Double Knot is handy. It's so easy to do, and that extra turn of line makes it slip-proof. Unlike the Simple knot when connecting 2 lines!

I also use this knot for flying line, although it probably reduces the breaking strain significantly. But no more than all the accidental knots and frays that a well-used line tends to accumulate anyway! This is not so much of a concern in a bridle since in that case the strain is shared between 2 or more lines.

Apart from modifying a bridle, this also comes in handy when scrapping old sail and re-using the horizontal spar(s).

I actually did this during the trials and tribulations with the very first build of the Dowel Roller kite! The old bridle lines were snipped so they could be fed through holes in the new sail.

Now, if you really want to go overboard with knot-tying...

The book
Knots: The Complete Visual Guide has an amazing average review score of 5 stars from 12 reviewers - the last time I looked. If it's a more general knot-tying resource you need, this would definitely be it!

Need winders, reels, flying line?

Buy here from Amazon. Just use the Search box in there if you need different weights or lengths.

P.S. If you would like to support My Best Kite and the publication of new kite designs, please consider clicking that link for anything you need from Amazon :-)   We get a little cut, but you don't pay a cent extra.

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Wind Speeds

Light air
1-5 km/h
1-3 mph
1-3 knots
Beaufort 1

Light breeze
6–11 km/h
4–7 mph
4–6 knots
Beaufort 2    

Gentle breeze
12–19 km/h
8–12 mph
7–10 knots
Beaufort 3    

Moderate breeze
20–28 km/h
13–18 mph
11–16 knots
Beaufort 4    

Fresh breeze
29–38 km/h
19–24 mph
17–21 knots
Beaufort 5    

Strong breeze
39–49 km/h
25–31 mph
22–27 knots
Beaufort 6

High Wind
50-61 km/h
32-38 mph
28-33 knots
Beaufort 7