• murphy4trees's Avatar
    21 Hours Ago
    In this case because the cut was at 50% of the way through the strength of the vertical grain of the wood is at its greatest.. rather then splitting far up the trunk with a clean break as is often the case in BBC, this tree splintered just above the cut. An examination of the log just above the cut showed that the grain began to split up the trunk, with a clear crack developing vertically visible in the cross section of the wood, as high as 6 feet above the cut... so it wanted to split up the trunk a good way but didn't, because the fibers just above the cut splintered first. If the cut had been made more than half way through, there would have been a LOT less strength the vertical grain, making the tree more likely to split with a clean break up the trunk... this is one of the reasons why a shallow notch is not recommended. With a shallow notch, there is a greater tendency for BBC
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    21 Hours Ago
    NICE! it would be easy enough to cut the tree pictured from the hooks as well, but I'd rather use a high cut from the ground if possible casue its just faster than getting out the saddle .. ANd more importantly these days I can't wear the hooks anymore... Probably never will again.. they hurt my feet so bad last time.. it's been 7 months since the last time and they still hurt from it.. plantar fasciitis..
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    1 Day Ago
    In this case yet. It's about where the weakness in the structure is. We normally cut to create a hinge which will be the weakest part of the tree's structure. When the hinge is left too thick, or there is a bypass in the face cuts, or in this case there is only a kerf backcut, there is a possibility that the weakness is in the vertical grain of the wood. That can split up or down depending on which side is weaker. At the stump, the high side will be weaker than the stump, so the trunk will split up. As it does the new pivot point will be some feet above the cut,
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    1 Day Ago
    simple physics yes... your understanding of said physics.. not so much ... next time I AM going to cut over 50% of the stem with the kerf before pulling...
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    2 Days Ago
    2 pull lines with skid steer needing to take a bunch of runs at it .....
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    2 Days Ago
    it was not necessary to climb... usually that's safer too!
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    2 Days Ago
    cut the second stem high to shorten the fall
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    2 Days Ago
    this is all I got out of it... was hoping for something more like butch's pic... thinking I only went half way through with the kerf cut... might go 60% next try..
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    3 Days Ago
    school of hard knocks for us Mericans
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    4 Days Ago
    You gotta watch those other three fingers
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    4 Days Ago
    I remember the first time I ever swing a limb accidentally... being amazed at the movement sideways over 90 degrees before any drop... took me a few years to figure out how to do it on purpose.. Kenny the tree spyder explained it back in the day... SO its those anomalies that can be fertile ground for learning...
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    4 Days Ago
    each to their own.. I like to start wit the questionable things and work back from there :lol: Thinking about the way the trunk split on this one makes me think that trees growing in a wooded landscape are more prone to BBC as opposed to trees growing in a suburban setting.. also of course its interesting to see what it takes to split the trunk.... which is a lot in this case
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    I was also expecting more of a clean break of the trunk fibers vertically with the grain... It looked at first like it was going to split up the trunk a good ways, then it got all stringy with a bunch of jagged fibers, rather than a clean breaking of the grain.. I've seen hickory splits look like that but never ash... got video.. forgot to get stills
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    we pulled from about 15 degrees off the 90 of the cut.... so the pull line was offset to the desired lay... I predicted that the tree would fall with the grain of the wood (90 to the cut)... turns out that the top started going to the direction of the pull line for about the first 45 degrees of the fall, then it turned and landed perfectly to the lay.. at least 15 degrees during the drop... NOw that was a surprise .... I love surprises. (when they don't result in something getting damaged).. great opportunity to learn something...
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    Agreed and you don't even know the best part yet!
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    Oh ya! just calling it like I see it...
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    67 replies | 1068 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    let's just call it outside the box.. if you feel the need to judge that, its a pretty good bet that you're inside the box... making you nothing to me... I already came up with some valuable insights on the first attempt, which could end up saving someone's life.... nothing ventured.. nothing gained inconsistent results are only that way because you haven't figured out the physics yet... 16" stem ... maybe 45-50 feet
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    To shorten the fall ....
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    5 Days Ago
    Cut my second today... gotta say got was very disappointing.. Pretty straight white ash ... hoping to get 7-10' of lift above the cut... only got 2-3' with a lot of splinters.. this is about as prone to BBC as any species around here and I was expecting a lot more action.... Still formed a nice bridge, and so a lesson was learned.....
    51 replies | 1090 view(s)
  • murphy4trees's Avatar
    67 replies | 1068 view(s)
  • murphy4trees's Avatar
    6 Days Ago
    Want to know why???? next time you walk by a mirror, take a look!
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    6 Days Ago
    There is always a reason... for many the reason is "because someone told me to do it like this".... Not me though.... I do it because, its the easiest , fastest, most reliable, way to get the tree where it needs to go... with consideration for all the many variables...
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    http://www.tcia.org/TCI-publications/tci-magazine/pdfs/07-2004-TCI-Mag_0.pdf starts on pg 8 I just re-read the article.. it's actually a little embarrassing .. I've changed my techniques in some respects since then... worst thing about the article is the pictures. I didn't have a good one.. Palmer rightly pointed out that the mulberry hinge just blew up and really didn't hold .... I actually agreed with him on that one... I didn't argue with him when he definitely announced that the Germans had proved the tapered hinge is no good in holding against side leaners .... I would like to see the science... Still would...
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    try harder next time.. its too late for this one!
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    I didn't sharpen the saw.. Barely used it.. Just showed up to put the tree on the ground.. Noticed it was cutting kind of funny.. Felt like it was biting pretty good sometimes, but not all the time.. Might be from the bar rails being off, or more likely a problem with the chain. I need to get some flat files... I haven't sharpened a chain in some time.. probably last year
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    If you had simply asked about the corner cuts on page 2 we wouldn't be here on page 10... But you want to criticize, and you're still talking shit, like you know something! then don't come asking for my understanding.. Figure it out for yourself... I did! And its no big deal, pretty simple actually... learned from the school of hard knocks... I've been cutting trees since you were three years old.. That's given me plenty of time to make a lot of mistakes... And I learned from those mistakes.. Maybe... just maybe.. you can learn from yours too.
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    If you read the o.p. Squish, you'll remember that this thread was about 2 guys standing too close to the DZ causing me to waive them off, at which point the skid steer op pulled early before the back cut was completed. I will use the tapered hinge regularly when most guys wouldn't. Perhaps to fight a little side lean or give added protection to a valuable obstacle on one side of the LZ, but did not use it intentionally here... I have intentionally practiced this cut for years in non-critical applications, trying to glean a complete understanding of its use. Unfortunately it is a fairly unreliable cut. Sometimes it works incredibly well to fight side lean, and other times seems to have little effect. Perhaps this is why it is a truly controversial subject to this day. When I wrote the article in TCI magazine, Ken Palmer told me face to face that the tapered hinge has no benefit to fight side lean and his scientist buddies in Germany had proved it. It is no longer taught to professional fallers. On the other hand any experienced faller knows that a tree can be steered with the back cut. It seems like the controversy might be due to the effects being somewhat species dependent. Personally I have noticed red maple will tend to fall perfectly perpendicular to the backcut, even when it is fifteen or more degrees off the notch and the lean or pull favor the notch's 90. This is why in many situations you want to be certain the hinge is straight. Best way to do that is to eyeball the gunning line as the back cut is getting finished. I may have ended up using a slight taper here, but certainly didn't mean to leave that much taper and that much meat on the hinge.. I did not start that back cut thinking I'll leave a good taper to the hinge. If the skid steer op hadn't pulled early I would have level out the cut..
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    That's like saying Kevin Bingham hasn't been taught to climb on a tautline hitch..
    110 replies | 2798 view(s)
  • murphy4trees's Avatar
    1 Week Ago
    saying that hinge was "compromised" by the corner cuts is like saying a 7,000 lb rope is compromised by using a running bowline to lower a 150 lb limb. Technically its true, but completely irrelevant to the function.
    110 replies | 2798 view(s)
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I've been cutting trees since graduating college in the early 80's. My son is the best person I know. I believe in doing the right thing,
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