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High Lead logging in Western Oregon Cable grue Larix 3T, installed on agricultural tractor. Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, and grapple yarders, but also in Europe (Austria, Switzerland, Czech Republic, France, Italy).
A yarder is piece of logging equipment that uses a system of cables to pull or fly logs from the stump to a collection point. [1] It generally consists of an engine, drums, and spar, but has a range of configurations and variations, such as the swing yarder. Clyde Skidder at Marathon Logging Camp near Newton, MS ~1921 Madill 124 Yarder. An ...
High lead logging is a method of cable logging using a spar, yarder and loader. It was developed by Oscar Wirkkala. It is accomplished with two lines (cables) and two winches (or cable drums). The mainline or yarding line extends out from one winch, while a second usually lighter line called the haulback line extends out from the other winch to ...
The cables run up an angled boom and then to the far side of a setting. By using two cables set up like a clothes line, the rigging can be pulled out and logs can be pulled across a logging setting where the trees have been previously felled. This machine is most suitable for steep ground where it is difficult to access the logs with other ...
Logging, by a mile. According to the ... “In essence, when the machine on the slope needs to move, the tethering machine provides enough tension on the cable to allow the tethered machine to ...
A choker setter or choke setter is a logger who attaches cables to logs for retrieval by skidders or skylines. [1] [2] The work process involves the choker setter wrapping a special cable end (choker) around a log and then moving clear so the yarding engineer (e.g. skidder operator) can pull the log to a central area.
Skyline logging (or skyline yarding) is a form of cable logging in which harvested logs are transported on a suspended steel cable (a cableway or "highline") from where the trees are felled to a central processing location.
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