[QUOTE=Nick-D;857079]
As for useful knots. Bowline, clove hitch, half hitch. The sheet bend is a more useful knot for securing 2 different thicknesses of line together. /QUOTE]
Here's the sheet bend. In this case attaching a shoe lace to the end of a 3 strand hemp "lashing" rope. It is similar to the reef knot but the thin rope goes under the front strand and back out on top of the bright in the thick rope. So it locks a bit better. This was originally used on natural fibre ropes with some texture to give friction. It is an easy knot to get undone after it's been loaded hard. But a little insecure and possible to come undone if unloaded and flapped around.
Here is a more common form used with slippery synthetic cord. It has an extra turn around the two strands of the thick rope to hold them together. You can do several turns if you need to. It is more secure than the basic sheetbend specially when not under tension. This is useful if you are extending a tent guy rope with a scrap of smaller thread to reach a nearby root or branch. Of course it's only as strong as the thinner cord!
Cheers fellas.
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