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 