text: angle of attack. Regardless of the condi- 
  tion of flight, 
  the instantaneous flight path 
  of the surface determines the direction of the 
  oncoming relative wind and the angle of 
  attack is the angle between the instantaneous 
  relative wind and the chord line. To respect 
  the definition of angle of attack, visualize 
  the flight path of the aircraft during a loop 
  and appreciate that 
  is 
  defined by the flight path at any point dur- 
  ing the maneuver. 
  that 
  Notice 
  
  the relative wind 