13 



used and their efficiency, regulations with refer- 

 ence to their use method of changing runs, etc. 

 (Submit sketches showing chief features of 

 machine, methods of changing runs, and location 

 of landing and runs from one set-up.) 



d. Factors governing the choice of landings and 

 limits of area to be logged from one set-up. 



e. General scheme of railroad or other means of 

 transport for machines and logs. (Submit map 

 showing transportation layout for a limited area. ) 



f. Cables: number, size, length, type, quality, 

 make, average life in terms of feet log scale, 

 maintenance methods, value, disposition of worn 

 cables. 



g. Methods of operation, including laying-out job, 

 moving and setting up equipment, skidding, and 

 loading. 



h. Crew : organization, number of men, .qualifi- 

 cations, and duties. 



i. Animals : number duties. 



j. Fuel: kind, amount, how secured, relative 

 efficiency, cost per unit. 



k. Water requirements per day how provided. 



1. Capacity, daily, of machine in logs and log 

 scale, for given distances (to be determined by 

 time studies, showing distribution of time for 

 each part of operation). 



m. Relation of power skidding to forest manage- 

 ment, based on damage to young growth and 

 disturbance of ground surface. 



n. Spare parts carried in stock for each unit. 

 . With tractors. 



a. Type of tractor used horse power speed 

 loaded and empty hauling capacity. 



b. Loading devices: winches or other equipment. 



c. Trailers: type capacity method of attach- 

 ment to tractor. 



d. Maintenance : character of repairs necessary 



