64 



0-3 



0-2 03 0-4 



SCALE OF -f-v/yfaZ 



Figure 33 - Effect of Asymmetry on Resistance (Wigley) 



(Courtesy of Institution of Naval Architects) 



The effect on resistance of a reversal in the direction of motion 

 is given by Figure 34; only calculated curves with viscosity correction can be 

 compared as without correction the difference is obviously zero. 



Interesting results have been obtained for the influence on resist- 

 ance of changes in the forebody only, the afterbody being kept constant, and 

 vice versa. 



For variable bow shape, calculations without viscosity correction 

 are in good agreement, on the average, with experimental data within the range 

 of forms investigated. 



