25 



.2 do 6 



S«fg"f 























III 









.024 1 













































7/ 









.016 

 .012 

 .008 

 \ .004 

 \ ° 





1 







r 



\ 





























/ 



•£•=0.125' 



















\ 



\ 



V^ 



J 























f 







\ 



V 



__f_ . 



0.25 























77 



^ 





























r=o.5\_ 







\ 3 



4.0 



5.0 



6.0 



7.0 



8.0 



9.0 



IC 













■■£■* 0.125 





























L 



= 0.5 \ 







— = 0.25 





























.0 



2 







2 



.0 



4 



.0 



5 







6 



.0 



7 



.0 



8.0 



9.0 



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2F2 



<*> 0.707 0.500 0.408 0.354 0.316 0.288 0.267 0.250 0.236 0.224 



Figure Q - Comparison of the Shape of Wave-Resistance 



Curves for the Spheroid rj($) = 1 - | 2 ; the Curves 



are Reduced to Approximately Equal Maxima 



A. Small depths of immersion 



1 ) Within reasonable limits, the peak value of the R/4 curve does not 

 depend too much on the shape of the body,* especially upon the prismatic co- 

 efficient. 



2) The merits of full forms, over a wide and possibly important range 

 of Prou.de numbers 0.35 ^ F ^ 0-50, are clearly emphasized, as well as 



3) The heavy penalty which has to be paid for high prismatics at 

 lower F. 



■*If more elaborate results are desired they can be derived from Figures 28 through 35- 



