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Filtering by: Subject Crawler tractors -- Customizing Remove constraint Subject: Crawler tractors -- Customizing

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Skidding and bunching tractor

Creator:

Fobes, E. W. and Forest Products Laboratory (U.S.)

Resource Type:

Technical Report

Full Text:

E. W. Fobes May 1951 OCT 9 1951 Figure 1.--Skidding tractor with
Adapting swinging booms to crawler tractors for hardwood and other small log operations

Creator:

Bullard, Howard

Resource Type:

Undergraduate Thesis

Full Text:

tralLor. 8o tbc bast of qy kaorlcrtga r 5. eulngln bsoms bave not yet baanrto crawLer traetors for
Increased traction for wheeled tractors

Creator:

Fobes, E. W. and Forest Products Laboratory (U.S.)

Resource Type:

Technical Report

Full Text:

TRACTION FOR WHEELED TRACTORS A standard wheel-type tractor equipped with detachable crawler tracks has
Front-end loaders

Creator:

Fobes, E. W. and Forest Products Laboratory (U.S.)

Resource Type:

Technical Report
Jack-knife sulky

Creator:

Fobes, E. W. and Forest Products Laboratory (U.S.)

Resource Type:

Technical Report

Full Text:

crawler tractors. This sulky makes it possible for owners of small woodlots and with limited harvesting
Two thinnings of douglas-fir with crawler tractors : time differences

Creator:

Kangur, Rudolf and Oregon State University. Forest Research Laboratory

Abstract:

Two intermediate cuttings were made in a Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stand on the Wilark forest management research area in northwestern Oregon. Age of trees in the stand varied from 47 to 62 years at the first cutting. Crawler tractors were used in both extractions. In the first cutting,...

Resource Type:

Technical Report

Full Text:

, saw- logs and poles and piling were taken to the skid road by crawler tractor. A choker setter worked
Two thinnings of Douglas-fir with crawler tractors : time differences

Creator:

Kangur, Rudolf and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report

Full Text:

, saw- logs and poles and piling were taken to the skid road by crawler tractor. A choker setter worked

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Academic Affiliation

College of Forestry2

Creator

Fobes, E. W.4
Forest Products Laboratory (U.S.)4
Kangur, Rudolf2
Oregon State University. Forest Research Laboratory2
Bullard, Howard1

Date

Date range begin – Date range end

Current results range from 1935 to 1967

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Decade

1960-19692
1950-19594
1930-19391

Degree Level

Bachelor's1

File Format

application/pdf6

Language

English [eng]7

Resource Type

Technical Report6
Undergraduate Thesis1

Rights Statement

Copyright Not Evaluated7

Subject

Logging -- Machinery3
Crawler tractors -- Oregon2
Douglas fir -- Harvesting -- Oregon2
Farm tractors -- Customizing2
Forest thinning -- Oregon2
more Subjects »

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