INTRODUCTION CABLE YARDING OPERATIONS HIGHLEAD, LIVE SKYLINE, RUNNING SKYLINE DEMONSTRATION/CONTEST. Cable Logging, Equipment & Systems. FOR 420 Feb 1, 2001 James Hart. CABLE YARDING.
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Cable Logging, Equipment & Systems
FOR 420Feb 1, 2001James Hart
OLD PNW YARDER
SKAGIT 3-DRUM PORTABLE TOWER
WITH GUY LINES
CABLE LOGGED CORRIDOR IN PNW
Running skylines operate in any direction
operate in any weather
less damaging to soil than tractor skidding
operates faster than tractor on same terrain
limited primarily by the line capacities of the yarder drums
the high-lead is used for only clear-cut
the cost of moving, and changing yarding road are fixed, not efficient for low volumes of harvesting
High costs per unit for low values per acre discriminates against small log operationsCABLE LOGGING SYSTEMS------------------------------------------ ADVANTAGES DISADVANTAGES