The first two articles in this series discussed the risks of chainsaw operation as well as chainsaw safety, planning and precision felling techniques. In this final article, I will discuss several other topics that chainsaw operators should be knowledgeable about, including how to estimate tree height, make an open face notch and use felling wedges.
Estimating Tree Height
An important part of felling trees is the ability to estimate a tree’s height in order to determine its position as it falls, hits the ground and comes to rest. Accurate height estimation allows the operator to determine if felling the whole tree is truly the best approach in a given situation and, if it is, helps the operator to avoid hitting or brushing against obstacles, hanging up trees and leaving behind dangerous branch hangers. Remember that the height of the felling cut will affect the felling path and the position of the tree when it reaches the ground.