21 



Figure 6 - Wave-Resistance Coefficients r = 



knC 2 pg b 4 /a 

 Bodies as Defined on Figure 4, f/L = 0.125 



of Symmetrical 



easily draw conclusions from the rather comprehensive plots than from any 

 text. 



We are mainly interested in the range of Froude numbers F below 

 and at the maximum of the large hump in the resistance curve; see, for in- 

 stance, Figures 6, 7 and 8. Above the maximum the absolute value of wave 

 resistance decreases comparatively slowly with growing F, but the ratio wave 

 resistance to frictional resistance drops quickly. Therefore, at high speeds 



