Other directional notch methods

Different directional notch methods than open face notches.

Open-face directional notch with larger opening angle

Inverse notch with larger opening
• Flat and sloping terrain
• Directional notch opening more than 70°
• The bottom cut is angled downwards from the felling cut
• The felling cut in line with or slightly above the level of the directional notch
+ The hinge remains intact until the tree hits the ground
- Higher stump height

Inverse directional notch, "Humboldt"

Inverse directional notch,
• Thicker trees on steep slopes
• Directional notch opening at least 45°
• Horizontal cut has the same angle as the felling cut
• The felling cut is slightly above level of the directional notch
+ Good for tree types susceptible to splitting
+ Low stump height

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