Vassilopoulos and Mandel 



SHIP E— HEAVE 



C 



PHASE ANGLES 







80 



V2.K-S3.4- 





10 20 30 



\/^ KNOTS 



<40 



^. 



S4k-32.0 



320 

 280 



240 



A A 



A A 



10 20 SO 40 



394 



