Life Sciences Commons^™

B815: A Comparison Of Small Single- And Double-Drum Cable Systems For Prebunching Partial Cuts, Frederick M. Hathaway, Benjamin F. Hoffman

Bulletins

This study evaluated two single-drum and two double-drum winching systems for prebunching small-diameter, tree-length stems from partial cuts. Three farm tractors with Farmi winches and one sled-mounted winch were used. One single-drum system was run by professional woods workers and the others were operated by forestry students. Three different types of chokers were used and a skid cone was used with two systems.

The professional crew used a self-release block at the back of the trailside pile to avoid piling delays while the other systems used a spar tree. All systems were evaluated by time studies. The professional crew was …