o 



E 



I5r 



20 



25 



2.0-ft contour 



RANGE 01- 

 RANGE 03- 

 RANGE 05- 



50 100 150 



Cumulative Time (hrl 



200 



250 



Figure 32. Comparison of the -0.9-, -1.3-, and -2.0-foot contour 

 movements in experiment 70X-06. 



63 



