My private test prep says "The pilot has no control over the angle of incidence" and I cannot understand this unless AOI means an angle in a specific configuration which I failed to find any reference mentioning so. Please enlighten me and I appreciate your help. My understanding is as follows. 1. Angle of incidence is angle between the wing chord line and the center line of the fuselage. 2. Chord line is a straight reference line from the leading edge to the trailing edge of an airfoil and changing the shape of an airfoil by lowering flaps would change the chord line. ∴ Pilot can control AOI since pilot can control chord line by lowering flaps.