WOW! There are two VERY important thins to remember when using cranes to do trees. First, the crane operator MUST relay the maximum weight for each pick to the guy doing the cutting. Secondly the climber has to have a good head calculator (knowledge of the weight of the particular wood and leaves) to make sure he doesn't exceed the limits of the crane.
My crane guy and i work very well together, communication is the key. Once the cut is made, the crane MUST lift the piece OR it s a disaster. IMO there are NO little crane boo-boos with trees. They are ALL potential life threatening situations.
That all being said, cranes are a very valuable asset when used properly. Like anything being done at height, gravity is always the winner!
