Range 01 



Range 03 



Range 05 



Range 07 



Range 09 



150 200 250 



Cumulative Time ( hr) 



350 400 



Figure 29. Comparison o£ the -0.3-, -0.4-, -0.6-, -0.7-, and 0.8-foot 

 contour movements in experiment 71Y-10. 



