. Production rates in commercial thinning of young-growth Douglas- fir. Logging Costs; Douglas fir Thinning. 0 50 100 Volume per log (cubic feet) Figure 15.âDirect skidding-cycle cost per hundred cubic feet (for distance = 400 feet), based on log volume, by type of skidding machine. 150 â a c o 16 14 12 9 10 >5-hp. C iAWLER \\ 5 D-hp. CR AWLER ^> \ \£ \ \ \ \ 60-h 3. 4-WH EEL SKID DER ~~ 100 200 300 400 Volume per log (board feet) 500 600 Figure 16.âDirect skidding-cycle cost per thousand board feet (for distance = 400 feet), based on log volume by type of skidding machine. 15. Please n
. Production rates in commercial thinning of young-growth Douglas- fir. Logging Costs; Douglas fir Thinning. 0 50 100 Volume per log (cubic feet) Figure 15.âDirect skidding-cycle cost per hundred cubic feet (for distance = 400 feet), based on log volume, by type of skidding machine. 150 â a c o 16 14 12 9 10 >5-hp. C iAWLER \\ 5 D-hp. CR AWLER ^> \ \£ \ \ \ \ 60-h 3. 4-WH EEL SKID DER ~~ 100 200 300 400 Volume per log (board feet) 500 600 Figure 16.âDirect skidding-cycle cost per thousand board feet (for distance = 400 feet), based on log volume by type of skidding machine. 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Adams, Thomas Cooper, 1918-; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). [Portland, Or. ] : Pacific Northwest Forest and Range Experiment Station, Forest Service, U. S. Dept. of Agriculture
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