S 2 



_tt> _p 



Beach Profile 

 7IY-06 (after 375 hr) 

 7IY- 10 (after 335 hr) 

 7IY Initial Profile 







21 



28 



35 



Figure 23. 



Distance from Original SWL Intercept (ft) 



Final profiles in experiments 71Y-06 and 71Y-10. 

 with the longest test durations in the series. 



Beach Profile 



4 r 



E 2 - 



70X-06 (after 175 hr ) 

 70X-I0 ( after 2 lOhr) 



71 Y-06 (after 375hr) 

 71 Y- 10 (after 335 hr) 

 Initial Profile 



- H.. 



-2 - 



-4 



-14 



Figure 24. 



7 14 21 28 35 



Distance from Original SWL Intercept (ft) 



Comparison of final profiles with a wave period 

 of 1.90 seconds and an initial slope of 0.10. 



65 



