The reason for a stall at a given pitch angle can be... - PPL(H) EN

Question id 685 - Principles of Flight (Helicopter) - PPL(H) - Private Pilot License

Constant peripheral speed and great vertical airflow through the rotor.

Smaller vertical airflow through the rotor and constant peripheral speed.

Smaller effective angle of attack and small peripheral speed.

Smaller frontal resistance and turbulent airflow.