21-15. (H) Rotor Heads
All questions: 39
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1. When using a strobe type tracking and balancing system on a fully articulated rotor head, one blade is not equidistant from the other blades in the lateral plane. The cause of this defect is that:
2. Tail rotors differ from main rotors in that:
3. Dragging of a blade takes place:
4. What indication will be available to the pilot of wear in either tail rotor gimbal or pitch change link bearings?
5. “Dragging” of a rotor blade is an angular oscillation of the blade in: