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Which is checked during a control system rigging inspection?

  • A.The aeroplane static margin at the test loading
  • B.The lift curve slope
  • C.The Dutch roll damping ratio
  • D.Free play, cable tension and travel

Answer: D

Rigging concerns the mechanical system: free play, cable tensions, and the travel achieved at the stops, all of which affect flutter margin, control authority and feel. Static margin is a loading and design property, checked by weight and balance rather than by rigging. The lift curve slope and the Dutch roll damping are aerodynamic and dynamic properties that no ground inspection can measure.

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