NAWWEPS OD-EOT-SO 
BASIC AERODYfflAMICS 
FRICTION DRAG OF A SMOOTH 
FLAT PLATE 
c ,020 - 
E D ,010 - 
iii .008 - 
yu’ .%2 - 
O” 0 :% - 
:: ,002 - ‘\ 
2i ‘1 
.OOl * 1 I 1 1 1 
0.1 0.5 1.0 5.0 10.0 50 100 
REYNOLDS NUMBER 
RN(MILLIONS) 
CONVENTIONAL AfdD LAMINAR 
FLOW SECTIONS 
TRANSITION 
NACA / 
L NACA 0009 
P DRAG BUCKET” 
I I 
-1.0 -3 0 .5 I.0 I.§ 
SECTION LIFT COEFFICIENT, cl 
Figure 7.25. Skin Friction Drag 
55 
Weaised January 1965