Estimating machine rates and production for selectedforest harvesting machines operatingin the western United States and determiningthe most economical machine combinations underrepresentative conditions in Turkey

approved: AN ABSTRACT OF THE PAPER OF Abdullah E. AKAY for the degree of Master of Forestry in Forest Engineering presented on January 2. 1998. Title: Estimating machine rates and production for selected forest harvesting machines operating in the western United States and determining the most economical machine combinations under representative conditions in Turkey.