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Filtering by: Committee Member Dykstra, Dennis Committee Member Aulerich, Ed

An analysis of the slackpulling forces encountered in manual thinning carriages

Creator:

Iff, Ronald H.

Abstract:

The popularity of gravity-return skyline logging systems is now increasing in the Western United States. Simplicity seems to be the basis for their success. While two drum yarders are most commonly used, ·some systems, such as the Wyssen, use only a single drum for yarding. Carriages commonly used with these...

Resource Type:

Capstone Project
The loading of second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco): to simulate the forces acting on an intermediate support tree

Creator:

Sedlak, Jerome Peter

Abstract:

The comercial thinning of second-growth stands in the Pacific Northwest is becoming increasingly important for satisfying the demand for timber. Cable logging will require the rigging of smaller intermediate support trees rather than those utilized on old-growth timber sales. This paper reports on the results of a study designed to...

Resource Type:

Capstone Project