SACAA NPL Principles Of Flight Practice Questions - SACAA National Pilot Licence (NPL) Principles Of Flight & Technical Examination Exam

Angle of Attack is fixed by aircraft designers, whereas Angle of Incidence changes continuously in flight. Angle of Incidence is fixed between the wing chord line and fuselage axis, whereas Angle of Attack varies dynamically with flight path and pilot input. Both angles are variable in flight and adjust automatically with airspeed. Angle of Incidence is measured relative to the wind, while Angle of Attack is measured relative to the horizon.