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 A 300 



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1 2 3 4 5 6 7 8x10" 



WAVE HEIGHT TO LENGTH RATIO, H/a 



Figure 23. Phase lag of force data - Circular model. 



1 2 3 45 6 7 



WAVE HEIGHT TO LENGTH RATIO, HA 

 Figure 24. Phase lag of force data - Semi -circular model 



8 X 10 



37 



