Index Catalog // ScholarsArchive@OSU

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: Yarding delays add significantly to the time and cost required to obtain a given quantity of timber. In this study, they increased total yarding time by as much as 28 percent. As yarding system complexity increases, the frequency of delays can also be expected to increase. For one balloon yarding...
Resource Type:: Technical Report

Creator:: Butler, David A., LeDoux, Chris B., and Oregon State University. Forest Research Laboratory
Abstract:: The authors describe a new,theoretical methodology for evaluating the replacement of a single piece of logging equipment with a predetermined new model. The example is for a specific piece of equipment and gives results unique to the data-base analyzed, but the application typifies procedures, required data, and results of the...
Resource Type:: Technical Report

Creator:: Olsen, Eldon D., Gibbons, Daniel J., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report

Creator:: Kellogg, L. D. (Loren D.), Olsen, Eldon D., and Oregon State University. Forest Research Laboratory
Abstract:: The production rates and costs of harvesting smallwood were determined for a small yarder (Koller K-300) operating under variable conditions: the size of the crew, the addition of a skidder to swing logs from the landing, and the type of harvest method-employed, either conventional or hot thinning (simultaneous felling and...
Resource Type:: Technical Report

Creator:: Kellogg, L. D. (Loren D.) and Oregon State University. Forest Research Laboratory
Abstract:: Research on skyline machines and techniques currently available for yarding smallwood is reviewed. Three categories of machines are discussed: used yarders (with a low initial cost) adaptable to smallwood, new and versatile yarders (with a high Initial cost) manufactured in the United States, and new, foreign-built yarders (with a low...
Resource Type:: Technical Report

ScholarsArchive@OSU