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
1. Around and over
3. Under and through
2. Under and through
4. Pull tightAnother 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
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.
What's New!
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Flight Report:
Dalmatian Diamond Just Hangs InMay 26, 18 06:03 AM
There seemed to be ample breeze all day... Except, of course, when I arrived at big Knox Park with the 3-kite Animal Train and the latest Paper Delta. Within minutes, the breeze had largely died away…
Return to Knot Tying Instructions from The Simple Knot, Variations...
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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
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