Gerritsma and Beukelman 



E 



Fn = .15 



2 3 i 5 



s 



Fn = .20 



Ef 



2 3 4 5 6 17 



Fn = .25 



Fn = .30 



E 



2 I 3 I < I 5 I 6 7 



^ 



2 3 < 5 I 6 





 -4 



Fig. 7 - Distribution of a over 

 the length of the shipmodel 



230 



