-3.5 



-3.0 - 



-2.5 



1 1 1 



O EXPERIMENT 



• F0IL2D PREDICTION 



— I 1 1 



NACA 4412 SECTION 

 a = 6.4° 



EXACT POTENTIAL THEORY 

 (REF. 20) 



-2.0 



1.5 



\ 



-1.0 



-0.5 



0.0 



1.5 



1.0 



OOo 



O r% n r t O-Tl CM <^ 



0.5 



J I I I I L 



0.0 



0.2 0.4 0.6 



FRACTION OF CHORD, x. 



0.8 



1.0 



Figure 9 - Pressure Distribution on NACA 4412 Section 

 at a = 6.4 Degrees 



29 



