Bra knopar att kunna

En arborists bästa vän är repet och med allehanda knopar kan man åstadkomma mycket. Här är några som är bra att kunna.

1. Alpine butterfly

The butterfly loop, also known as lineman’s loop, butterfly knot, alpine butterfly knot and lineman’s rider, is a knot used to form a fixed loop in the middle of a rope. Tied in the bight, it can be made in a rope without access to either of the ends; this is a distinct advantage when working with long climbing ropes.

The butterfly loop is an excellent mid-line rigging knot; it handles multi-directional loading well[2] and has a symmetrical shape that makes it easy to inspect.[2] In a climbing context it is also useful for traverse lines, some anchors, shortening rope slings, and for isolating damaged sections of rope

2. Bowline – Pålstek

The Bowline makes a reasonably secure loop in the end of a piece of rope. It has many uses, e.g., to fasten a mooring line to a ring or a post. Under load, it does not slip or bind. With no load it can be untied easily. Two bowlines can be linked together to join two ropes. Its principal shortcoming is that it cannot be tied, or untied, when there is a load on the standing end. It should therefore be avoided when, for example, a mooring line may have to be released under load.