32 3 —

 

 

1 2 3 4 5 6 q 8 9 10
eee i i i i i { i i \

 

Figure 9. (Engineers Series) Composite Fatigue Curves of First and Fourth Days
Showing Increasing Production.

 

+180

140

—120

[00

 

80 au

 

GEFoRE rare 2 MIN. 4 tA 6 ae.

 

 

Figure 10. Composite Curves of Condition and Costs in Heartbeats for the Days
Shown in Figure 9.