Why Heavily Back Leaning Trees Are EASY To Fell! - Shark Gill

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Published 2023-02-19
This video demonstrates the "shark gill" technique for felling a tree with a chainsaw. This method is known for providing maximum control and precision during the cutting process. By making a series of cuts along the back side of the tree, the shark gill technique allows the feller to guide the tree in a specific direction as it falls, reducing the risk of damage to surrounding property. This video is perfect for improving tree felling skills and increasing safety while working with a chainsaw.

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The video demonstrates the "shark gill" technique using a powerful and reliable Stihl MS 400 C-M chainsaw. This chainsaw is perfect for felling trees of all sizes and is equipped with a powerful 4.8 horsepower engine. I used a rope and pulley system to pull the tree down after cutting; this is an additional safety measure that allows for greater control over the direction of the tree fall. This technique not only makes the tree-cutting process more efficient but also makes it safer for the person cutting the tree. The video is a must-watch for anyone who wants to learn how to cut down a tree safely and efficiently.

0:00 The Facecut
0:31 Shaving sides
0:45 How to cut the shark gills
2:10 How the shark gill hinge works
2:18 The Backcut
03:04 Pulling the tree down
03:12 How the shark gill behaves when pulled and it is about to break
03:26 The result

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All Comments (21)
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  • @jcwoods2311
    Very cool. When I was very young saw my father do this but didn't know what it was. Thank you for the detail! My only criticism is all of the cut branch debris at the base while you were cutting. Dad taught me to clear area so if something starts to go bad I wouldn't trip getting out of the way.
  • I have used this several times. Even when it's not critical, it is great to be able to control the falling rate with the multiple hinges. Great technique.
  • @gusty60
    Thank you for that demonstration!
  • @jg2072
    What is the pulling portion of this? I would also appreciate showing the lean.
  • @apuuvah
    Just what I needed and will do for a large heavily leaning spruce near a highway. Thanx. Kiitti.
  • Ну если нужно свалить одно дерево, то можно и повыеживаться...если больше делать нечего.
  • @stuartwhelan3258
    Nice work, great job. The video would be enhanced by standing back and showing the viewers the lean of the tree. Apart from that, a great explanation of your cuts.
  • @tonyperez2703
    This was amazing to watch! Such smooth cuts and effortless control. I'm just learning to use a saw so these videos will certainly help
  • That will work on frozen timber. I've used double sizwheel bore cuts to swing hard frozen spruce , aspen and birch. It's the best that can be done to strengthen frozen holding wood. BUT it's an easy way to get quite a barberchair if someone does it in the summertime when the holding wood is really strong.
  • Never heard of the technique before, is this practical or just something that tree surgeons came up with to make it look cool?
  • @grassroot1100
    Had to watch to the very end for the , " big Finnish." Thanks
  • @mevled
    Pařez lze definovat jako část stromu (zpravidla bázi kmene), která zůstává zakotvena kořeny v zemi. Standardní výška pařezu by měla být 1/3 průměru káceného stromu (měřeno na řezu). V případě náročných terénních podmínek lze ponechat i pařez přiměřeně vyšší.
  • @johnbrowniv
    Not sure of ideal use case here, but creative. Seems like a standard cut would have worked as well?
  • @Dr.Reason
    Not sure if it was camera angle or not, but that tree was so heavily leaning back that I couldn’t tell it wasn’t leaning forward.
  • @g.h.5284
    a.s.m.r. at its best - I'm loving it
  • @Bryan-yl7mg
    Never saw this technique. But I'm concerned how many times you stumbled on the debris around the tree.