P/D 0.8 



_ ! ! ( 



(CAMBER FACTOR, C T , c, CAVITY THICKNESS 

 TYPE AT FIG. 5) 



(1.5, 1.054, 48.52. A) 



OPTIMUM PITCH 

 (1.5, 1.056, 48.64, A) 



nr TAN ; = CONST. 



OPTIMUM rcr TAN Q. 

 I 



02 0.4 0.6 0.8 



r/R 

 Figure 7 - Comparison of Optimum Variable Pitch 

 and Constant Pitch in Model 3770 (Case 1 ) 



LIFTING LINE DESIGN 

 (1, 0.985, 50.1, A) 



Figure 8 — Angle of Attack from Angle 



13 



