Have you ever cut down a tree? If so, you realize it is not as simple as cutting a straight line through the bottom and letting it fall. There is a method to the process. While it’s true that humans in the past would just chop away at a tree with stone implements like tomahawks, we contemporary folks have more efficient ways that ensure success. Arbor Magic is a tree services company from Washington state that explained that “(t)here are particular techniques that need to be followed to preserve the wood and ensure the safety of the people cutting down the tree.”
These various techniques center around notches or cuts purposefully made into a tree for the purpose of controlling the direction it falls. Moreover, these cuts are usually made with chainsaws.
To see a demonstration, watch the video below:
Specialare vi använder när vi vill fälla över ett hinder eller inte vill att trädet ska rulla. Gammal teknik som börjar bli populär igen.Guess it's time to write this. Don't try at home if you don't know how to handle a chainsaw. This is not for amateurs.
Posted by Arboris on Monday, December 11, 2017
According to Tree Services magazine, these notches “have been used by humans for centuries, if not longer.”
Face notches, a cutting technique used to direct the fall of a tree, have been used by humans for centuries, if not longer. When done properly, they allow users to direct and control the fall of the tree accurately and safely. In recent decades, knowledge of refined and advanced face notch techniques and their use has become available, offering arborists some different options that, in many cases, will increase the amount of control and precision they have in felling operations.
A knowledge of these techniques can assist tree care professionals in making the appropriate choice for the variety of situations and scenarios they may be confronted by in felling operations. While primarily directed toward the felling of whole trees, the use of face notches can also be advantageous in various other applications, such as lifting limbs, dropping tops during a removal, etc.; and their use in such applications should be explored and considered.
The traditional, or conventional, notch is one that many tree care professionals are familiar with; and, in all likelihood, is the face notch they received on-the-job training in at the beginning of their career and have continued to use. The traditional notch typically consists of an angled top cut of 45 degrees, a flat bottom cut, and is cut into the tree approximately one-third of its diameter. In addition, the back cut is typically stepped, or raised, 1 to 2 inches in a conventional notch, to prevent the tree from kicking backward off the stump during its fall.
Keep in mind though that loggers — or arborists, as they’re formally known — have a variety of notches they may choose from, including open-face notches, traditional/conventional notches and what are called Humboldt notches.
It is not entirely clear which cut the logger uses but it is possible that it is the traditional cut. Arbor Magic points out that it’s “the favored technique among loggers and tree evacuation specialists because it’s safe and fast at the same time.”