What types of airflow can be observed around a rotor blade aerofoil?

Question

Question PPL(H) - Private Pilot License - Principles of Flight (Helicopter)

QuizVDS · Accepted Answer

Laminar airflow at the leading edge, turbulent airflow further back

QuizVDS · Answer

Laminar airflow on the entire upper surface

QuizVDS · Answer

Turbulent airflow at the leading edge, laminar airflow further back

QuizVDS · Answer

Turbulent airflow on the entire upper surface

Id 675 - PPL(H) EN - What types of airflow can be observed around a rotor blade aerofoil?