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Skyline and grapple yarding, however, require more complex, and expensive equipment. [1] A traditional high lead or gravity system will function with just two cables, a skidding line. As the names imply the skidding line is used to drag the logs in, and the haulback line is used to drag the skidding line back out for the next turn (or group of ...
A skyline yarder can pull in 5 to 10 logs at a time, using separate chokers. The pulleys are mounted on towers or cranes, other trees, ridges, or, in rare cases, helium balloons. Satellite photograph of industrial-scale skyline logging in the Tierras Bajas project in eastern Bolivia, showing deforestation and its later associated replacement by ...
Skidding (circa 1900). In mining, quarrying, and forestry, skidding mainly concerned the usual transport of felled or cut material (wood, logs, stone) or extracted material (ores), sometimes cut to size (squared ashlar), to the road, track, river or top of the slope which, from the loader or loading point, enabled it to be transported onwards.
Choker setters at work attaching a log to a skyline in Cowlitz County, Washington (October 1941). A choker setter or choke setter is a logger who attaches cables to logs for retrieval by skidders or skylines.
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 ...
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That location appears to be combined with a shot taken near 12th and Harrison streets looking west at the downtown Kansas City skyline. Meanwhile, others felt the show depicted Kansas City ...
Skyline logging, in forestry, a method of cable logging; Skyline matrix, a form of a matrix storage; Skyline operator, a data query selecting the potential best data points; Skyline (software), a software for analysis of mass spectrometric data; SkyLine, people mover in Frankfurt Airport