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Machines and techniques for skyline yarding of smallwood

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dc.creator Kellogg, L. D. (Loren D.)
dc.creator Oregon State University. Forest Research Laboratory
dc.date.accessioned 2008-02-19T23:08:33Z
dc.date.available 2008-02-19T23:08:33Z
dc.date.issued 1981-12
dc.identifier.uri http://hdl.handle.net/1957/7917
dc.description 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 initial cost) specifically developed for smallwood. Used, inexpensive yarders can be a viable option for yarding smallwood, but carriage selection and timber size are important considerations. Prebunching small logs with a separate, low-cost system can increase yarding production and lower harvesting costs incurred with expensive new yarders. Proper determination of crew size and equipment balance can produce more cost-effective use of new, low-cost yarders. Because smallwood logging will increase in the Pacific Northwest as log diameter continues to drop, additional research and evaluation to Improve the effectiveness of machines and techniques is essential. en
dc.format.extent 1275795 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Corvallis, Or. : Forest Research Laboratory, School of Forestry, Oregon State University en
dc.relation.ispartofseries Research bulletin (Oregon State University. Forest Research Laboratory) en
dc.relation.ispartofseries 36 en
dc.subject.lcsh Logging, Skyline en
dc.subject.lcsh Logging -- Machinery en
dc.title Machines and techniques for skyline yarding of smallwood en
dc.type Technical Report en
dc.description.digitization Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 B+W), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 3.1 was used for pdf compression and textual OCR. en

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