144 BULLETIN 711^ U. S, DEPARTMENT OF AGRICULTURE. 



line method. About 4,000,000 feet of timber was hauled by the sky- 

 line at this setting. The overhead swing engine had no trouble in 

 taking care of the output of the yarding engine, which averaged 

 from 50,000 to 75,000 feet per day; in fact, it seemed it could have 

 handled the output of two yarding engines. 



Nestos overhead snubbing system. 



Under some conditions an overhead snubbing method can be used 

 to swing logs to better advantage than any other method. This was 

 true of the following case : 



An operator had a* limited amount of timber, which stood on a 



UPPER 



Lowef^ 



Fig. 50. — Carriage, Nestos overhead snubbing ^stom. 



bench 400 feet above the railroad, the slope between the bench and 

 the railroad falling away so ra,pidly that the use of a pole road or 

 chute was out of the question. It was decided to use an overhead 

 snubbing system of the type shown in figure 49. 



A wire cable If inches in diameter and 2,000 feet long was used 

 as a standing line. One end of this line was fastened to a stump 



