100 

 80 

 60 

 40 

 20 







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Wove Length 480 ft 

























20 













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Wave Len 



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Wave Length 720 ft 

























5 10 15 



Ship Speed in knots 



Legend 



Without Fins 

 With Fins 



5 10 15 



Ship Speed in knots 



20 



Figure 10 — Experimental Phase Relationship Between Heave and Pitch 



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20 



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5 



10 



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Wave Length 480 ft 





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Wave Length 600 ft 



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Wave Length 720 ft 







































5 10 15 20 5 10 15 20 5 10 15 20 



Ship Speed in knots 



Figure 11 — Computed Location of Point of Minimum Vertical Motion 



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