The Aerodynamics of Sails 



(X> , 00 



D. = pUn^ b^VnAf— A -Va I \ 



(29) 



Values of l^^. ^o^ various values of h/b are shown in Table 1. This table 

 indicates that i^„ decreases rapidly as m or n increases. For practical pur- 

 poses, negligible error is introduced in the induced drag calculation by neglect- 

 ing the effect of all terms in the double sum for m or n greater than eight, 

 except possibly for the case of h equal to zero. ' - . 



Table 1 : - 



(Table continues) 



1403 



