Noss has a field test out, comparing the Ranger RD7, the Gransfors Bruks Hunters Axe, and the Fusion Battle Mistress. He mostly chopped, shaped, and split downed tree trunks and branches. Watching these tests was an exercise in frustration. In the first place, as he tested the blades, I only could hear what Noss was saying 20% of the time. Mostly I watched him hack away without a clue to his reactions to the tools he was testing. I expect he was just too far from the microphone pickup of his video camera, but it’s still a problem.
That wasn’t the worst. The most frustrating thing was watching him chop. Cutting a downed tree trunk with axe or knife, it was always the same. He chop a narrow notch, ending at a sharp V point. Then he keept chopping within that notch. The result is that whatever edge he was using constantly pounded the same place, at the bottom of the notch. It’s hard for me to imagine a less efficient approach to chopping timber. I’m sure someone has one, but I don’t want to hear about it.
The way I learned to chop, you opened a notch as wide as the cut you are making is deep. If you are cutting through a ten inch thick deadfall, cut a ten inch wide notch. If you are going to cut through from the north face of the log, and then finish from the south face, each notch can be about five inches wide. Each side of a notch heads into the log at about a 45º angle from the line of the log where you’re cutting into it. That way you can keep chopping towards the center, removing chips as you go. This is much more efficient than just banging your knife or axe blade against the same spot until you gradually wear that area into sawdust.
If you’re using a full sized axe, you can probably open a ten inch notch on a log in one go. Chop above the centerline of your proposed notch on both sides. Chop below the centerline on both sides. Chop in the middle at both sides. With luck and skill that will pop a big chunk of bark and wood loose, and you can take the next step.
If you’re using a hatchet or a chopper knife, you’re unlikely to be able to work so large. So work in stages. Chop a narrower notch, still working in at a 45º angle. When you’ve gone as deep as you can with the opening size you have, expand the notch. Take bites on either side of the existing notch, removing short chips of wood. Keep going until you have the size of notch you need to chop as deep as you want. It may sound like a lot of extra work. But it’s still better than banging your blade uselessly at the bottom of a narrow notch.
If you can’t make sense of my instructions, check out
An Ax to Grind: A Practical Ax Manual