NAVWEPS 00-8OT-80 
BASIC AERODYNAMICS 
CYLINDER WITHOUT CIRCULATION 
INCREASED LOCAL 
VELOCITY 
UPWASH mSWNWASH 
---- 
\ 
LDECREASED LOCAL 
VELOCITY 
CYLINDER WITH CIRCULATION 
MAGNUS EFFECT BY 
ROTATING CYLINDER 
AIRFOIL LIFT 
-ZERO LIFT 
I 
UPWASH 
7 INCREASED LOCAL 
I ,-VELOCITY 
POSITIVE LIFT 
DECREASED LOCAL 
VELOCITY 
Figure 1.8. Generation of Lift (sheet 1 of 2) 
17