Lewis 



3D- 



P/r/?so/v C2 KT (/2) 



Log^Q 



/x'E'SPOA/Sjr /i/^P/./TU£)£r 

 Op£-p/) -TORS 



Log*cd 



ITNTe-GRATED Rj^SPOr^SJT SpjECTR/) 



//. = /80' (//£/)£> S£y9s) 



JL- SOO' 



-0.2 -0.^ -O.G -OX 'VO -1.2 



Log, oJ 



Fig. 7 - Relative bow motion, series 60 ship in Pierson 

 62-knot spectrum at various speeds 



202 



