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Filtering by: Creator Andi, Mamane Na Degree Name Master of Forestry (M.F.)

Production rates of skyline, balloon, and helicopter yarding systems from gross time study analysis

Creator:

Curtis, Richard James

Abstract:

This paper describes the analysis of data from a three-year gross time study of skyline, balloon, and helicopter yarding systems operating in Western Oregon. Data collection activities were designed and supervised by the Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service. The specific logging systems studied were running...

Resource Type:

Masters Thesis

Full Text:

-yarder balloon .342 .294 Yo~Yo highlead na .300 Yo-Yo highlead uphill na .404 Yo-Yo inverted