AIR PERFORMANCE 57 



hence V T ' and V R ' are constant and equal to V TO ' and V RO ' 

 respectively. Then we have 



r v r v' 2 



and from page 53 



N; _v 

 N'-V^ 



Also, of course, by definition 



w , dx 

 and V = _ : . . . . . (5) 



.-. from (4) and (5) = . . . . (6) 



V CL3C 



J 

 .*. from (2) and (6) - 



- 



Now put a .-jj. ...() 



and 

 then 



_ 



dx dx 



dw 



.'. - - - = aw 

 dx 



j dw 



.'. dx = - - ..... (7) 

 aw 



r w r x 



( dw ( , 



.'.-'I - = a \ dx. 

 \ w 



J tt-o ^ AO 



Note that x, = o and z^ = W (i ^ ^J \ . (> ) 



C" - P)V* ) 



Performing the integration, we have 



