82 REPORT OF THE No. 3 



II. Air Operations 



During the past season the Air Service carried on flying operations in con- 

 nection with various phases of forestry work. The following is a summary of 

 the detailed report of Mr. W. R. Maxwell, the Director of the Air Service: — 



"The operating season of 1925 extended over a period of 206 days, during 

 which time the Service flew a total of 2,738.37 hours. 



No. of machine-days, machines employed 763 days. 



No. of machine-days, machines available and idle 1,737 



No. of clear weather machine-days, machines available and 



idle 932 " 



No. of machine-days, machines available but weather unfit 



for flying 805 " 



Machine-days (1 machine for 1 day) supplied by the Service 



during 1925 2,500 " 



No. of times 1 machine unserviceable for 1 day 229 



No. of times machine unable to complete patrol on account 



of machine trouble 15 



No. of times Service unable to complete patrol 9 



No. of patrols requisitioned 555 



Machine patrol efficiency 97 . 3% 



Service patrol efficiency 98. 4% 



No. of permanent stations operated 10 



No. of temporary stations established 21 



Note: 



(a) In many cases the requisitions cover flying operations of from two to 

 four days. 



(b) No instructional flights, cross country to or from operating bases, 

 remote transportation, demonstration or operations in Red Lake, Fort 

 Cologne and James Bay District Treaty transportation are included in 

 the above requisitions. These flights were carried out on schedule. 



Total Load: 



Total weight carried by the Service during 1925 2,364,275 lbs- 

 Average total load carried per machine for season 139,070 



Average total load carried per flight 1,848 



Operating Load Carried: 



Total operating load carrie'd season 1925 1,810,735 



Average total operating load carried per machine 111,537 



Average operating load carried per flight 1,432 



Effective or Pay Load: 



Total effective load carried season 1925 553,540 



Average total efl'ective load carried per machine 34,239 



Average effective load carried per flight 427 



