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  1. cory

    Playing with a 100 tone crane

    That makes sense Reg, although during pretension, the bark and the whole piece is uncut, after cutting it seems the bark might be more easily shed. How bout a thought experiment: choke a section that weighs 2000lbs, apply pretension of 4000lbs without causing any issues. Then slack the tension...
  2. cory

    Playing with a 100 tone crane

    I probably do 10-15 craners/year, use wire rope with clevis 99% of the time. Those 2 incidents above were both tulip trees. If you don't have them out there, they can grow extremely tall and straight with slow taper. So some trunk picks can be totally smooth and straight with no bumps or...
  3. cory

    Playing with a 100 tone crane

    The two times Ive heard of it happening-one mentioned above and one that Tucker told us about happened to his uncle, the pieces had already been picked and were in midair when the logs released inside the bark so I'm not sure what Reg is saying is fool proof.
  4. cory

    Playing with a 100 tone crane

    Good policy.
  5. cory

    Playing with a 100 tone crane

    Speaking of choker types, we've talked in other threads about the danger of large, straight tulip sections slipping completely out of their bark skin during spring time removals when the sap is running and nylon straps were being used for the chokers. Ive always felt wire chokers were the...
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