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.





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!

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!




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.




E-book special of the month (25% off)...

The Dopero is someone's clever idea to combine 2 Roller kites! Double Pearson Roller is where the name comes from. The resulting flat portion of sail in the middle makes this a very efficient design in light wind.

Even more so than the Roller before it, this kite has an attractive aircraft-like appearance in the air. This MBK version also excels in light winds.

If you have made Diamonds before, this kite takes somewhat more time to make. With the help of my instructions, it's still do-able by a beginner.

Get the e-book for making the MBK Dowel Dopero kite. After making your first one in plastic and seeing how it performs, you can try soft Tyvek or rip-stop nylon for your next build.

This Dopero can fly in quite a wide range of wind speeds thanks to the 4-pont bridle. The bridle lines keep the frame more rigid than a 2-point bridle could. Tail(s) are entirely optional, but may be added for looks.

The e-book is a PDF file - which means printable instructions to refer to while you make the kite. It also means convenient off-line access if that suits you better.



What's New!

  1. The Granny Knot

    Mar 22, 17 09:00 AM

    This knot doesn't have the greatest reputation - but it's simple and does have it's place in some less-critical kiting scenarios. Usually with the addition of a drop of glue ;-) ...

    Read More





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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