Wednesday, February 2, 2011
Throwing Your 800 Pound Gorilla
height measurement and evaluating lean of trees you plan to fall in previous posts; this time we will be figuring whether or not we can push a tree where we want it with wedges, and giving you some useful numbers that are easy to remember, and to use in the woods. I like to measure the diameter early in the process of sizing up a tree, because the diameter guides your design of the hinge. This tree measures 38" diameter at breast height (4' 6" above the ground), and the hinge should be 80% of that in length, or 30". The thickness of the hinge can be up to 10% of the diameter, but 4" of wood is a lot to bend, so let's figure on a hinge no more than three inches thick.
Practice your measurements, and practice your cuts on trees that don't have any big problems or risks. If you want to test your limits on trees, do it on ones that can't fall on anything of value; and that includes you!