PPL(H) Principles Of Flight Practice Questions - UK CAA PPL(H) Theory - Principles Of Flight Helicopter Exam

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What two primary velocity vectors combine to form the resultant relative airflow over a rotor blade aerofoil section in a stationary hover?

Forward flight velocity and vertical rate of climb Rotational airflow due to blade rotation and downward induced flow (downwash) Tail rotor downwash and engine intake airflow Centrifugal acceleration velocity and rotor blade flapping speed

Correct Answer:

Rotational airflow due to blade rotation and downward induced flow (downwash)

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