Two Madill 044 yarding cranes were monitored over a three-week period in 1989 in a Coastal British Columbia stand where chokers were used for yarding mechanically felled and bunched second-growth timber. Productivity, costs, and profitability of the choker system were determined and compared to using grapple systems on the same yarding cranes.
FRDA Research Report 108 (1787 KB)
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Updated July 24, 2015