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 I 1 SWPE M.5 



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Photo 17. 



Sea-side view of uniformly placed tribar armor before wave 

 attack at a lV-on-1.5H structure slope 



Photo 18. Sea-side view after attack of 2.02-sec, 0.46-ft waves; 

 d = 0.45 ft; W = 0.627 lb; lV-on-1.5H structure slope; uniformly 



placed tribars 



