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

Why are semi-rigid teetering rotor hubs mounted in an 'underslung' geometry relative to the teetering hinge pin?

To minimize shifts in the blade center of gravity relative to the mast center of rotation during flapping, reducing Coriolis accelerations To increase maximum pitch range available during high-speed autorotation To eliminate the requirement for collective control mixing units To allow individual rotor blades to lead and lag independently without dampers

Correct Answer:

To minimize shifts in the blade center of gravity relative to the mast center of rotation during flapping, reducing Coriolis accelerations

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