SACAA PPL (H) Aircraft Technical Practice Questions - SACAA Private Pilot Licence (Helicopter) Aircraft Technical & General Knowledge Examination Exam

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What structural feature enables a rigid rotor system to allow blade flapping and feathering without traditional mechanical hinge pins?

High-pressure hydraulic actuators mounted directly inside the rotor mast Flexible composite blade roots and elastomeric bearings that absorb bending and torsional loads Floating swashplate rings connected directly to the rotor hub casing Counter-rotating upper and lower rotor blade retention pins

Correct Answer:

Flexible composite blade roots and elastomeric bearings that absorb bending and torsional loads

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