The chair knot is probably the most used knot. It is used for almost everything. This knot forms an eye (loop) that does not slip.
This marine knot can be used for mooring or for securing sails. But it can also be used to join two ropes together.
There are many ways to make this knot. Every sailor has his own (or almost). We can look for his favorite way.
The knot is made by creating a working loop with the frame passing underneath. Then the current comes to make a circuit above-under-top.
This knot is ideal on ropes that are subject to strong pulling, as it is strong and easily comes loose even when very tight. On the other hand to realize it or to drop it, it is necessary to have slack in the frame. It is not a knot that is under tension.
There is a mnemonic way to remember the construction of a chair knot:"The snake comes out of the well, turns around the tree and returns to the well."
The loop is formed with the current (left).
On the frame the working loop is built (the frame underneath). It's the well.
The current's coming out of the loop. That's the snake coming out of the well.
The current goes under the frame. The snake rotates around the tree.
Power's back in the loop. The snake enters the well.
The clamping is done by pulling on the current and on the frame
To hold, the knot must be tight.
To easily untie a chair knot, you have to"break" it.
