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Felling question

Started by Tony, September 05, 2017, 10:14:21 PM

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Tony

   I've  noticed on some felling vids, after the notch is cut there is a vertical cut/slice on each side, what is the purpose of this cut??? ??? ??? ???

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                                                               Tony
TK1600, John Deere 4600 W\frontendloader, Woodmaster718 planer\moulder, Stihl MS461 Stihl 036 & 021 & Echo CS-370
"You cannot invade the mainland United States.  There would be a rifle behind each blade of grass."  Adm. Isoroku Yamamotto ( Japanese

Riwaka


teakwood

They make this marks on each side so it's easier to see where the back cut has to stop, so you won't cut through the hinge wood
National Stihl Timbersports Champion Costa Rica 2018

Jemclimber

It's also to prevent fiber pull to the side of the hinge which can steer the tree after the hinge closes/breaks.  Sometimes this pull is intentional to cause swing, but when you're stuck to the tree at heights with a lanyard, this fiber pull can suck you into the tree with very bad results.  In climbers lingo it is sometimes referred to as "snipping the ears".
lt15

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