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all but one....

It wasn't the force on the overhead anchor points that was a concern. It was scuffing up the bark as the pieces swung into the rigging. Happened once on the first tree and there was a close call on the second tree with that first wood cut. We adjusted the placement of the skyline block for the...

No, BUT those pieces were close to the SWL of the line in a static situation. NO room for allowing shock loads.. The pendulum effect minimises shock loads, especially when pieces are tied off near balance point.. Lowering 40'+ pieces off the tree itself would have either created a situation...

Good question.. lots of answers.. trees were at top of steep hill going down to top of 5' retaining wall... could have been difficult for ground crew to handle such large bits, and could have gotten ugly if tips got hung up on all the surrrounding trees and butts ended up going the wrong way ...

I was actually surprised at how little effect the side loading had on the trees used for overhead anchor points. First of all they were eastern white oaks, which are nearly indestructable.. secondly shock loading was almost zero.. thirdly the set up of the anchor points adjusted the vector...

http://www.youtube.com/watch?v=rr7FxOpsgyI couldn't find the embedded code.. maybe its not up yet on youtube.. some fun cuts..