SACAA ATPL(H) Principles Of Flight Practice Questions - SACAA Airline Transport Pilot Licence (Helicopter) Principles Of Flight Examination Exam

Pitch angle is measured between the chord line and the mechanical reference plane, whereas AoA is measured between the chord line and the relative airflow Pitch angle and AoA are identical parameters measured relative to the horizon AoA is fixed mechanically by collective input, while pitch angle varies continuously with induced flow Pitch angle accounts for rotor disc inclination, whereas AoA ignores relative wind velocity