17 



ing devices, etc. (show special features by 

 sketches). 



cc. Type of trailer used. Describe and illustrate 

 any special features by sketches. 



dd. Size and length of logs that can be handled, 

 and average number per load. 



ee. Fuel and oil requirements, daily and monthly. 



ff. Maintenance requirements chief troubles 

 spare parts carried on hand skill required in 

 repair work crew for repair work. 



gg. Loading and hauling practice. 



hh. Number of trips per day for given distances, 

 bottom, topography, and loads (based on time 

 studies). 



ii. Roads: character, construction, and main- 

 tenance. 



jj. Crews: number of men duties. 



kk. Cost per 1000 feet, log scale, for given 

 distances and conditions. Compare with other 

 forms of transport for similar conditions. 



11. Make sketches of, and describe carefully all 

 important features of the motor truck, auxil- 

 iary equipment and special forms of roadbeds. 



3. Slides and chutes. 



a. Conditions under which used. 



b. Location: principles and methods curves, 

 grades, etc. 



c. Form of slide and terminals: describe and 

 show by sketches, drawn to scale. 



d. Construction: methods material crews. 



e. Operation: feeding and tending the slide 

 length and diameter of logs handled log control 

 crews cost per 1000 feet handled. 



f . Maintenance : life of slide character of repairs 

 crew required cost. 



4. Aerial tramways. 



a. Conditions under which used. 



b. Construction: methods materials required 



