Rigging refers to

• A. The final adjustment and alignment of an aircraft and its flight control system that provides the proper aerodynamic characteristics.
• B. The future impact of a hazard that is not eliminated or controlled.
• C. The characteristic of a gyroscope that prevents its axis from tilting as the Earth rotates.
• D. The four fundamental risk elements in aviation.

Answer: (A)

Rigging is the final adjustment and alignment of an aircraft and its flight control system to provide the proper aerodynamic characteristics. By setting the control surface travel, aligning hinges, and adjusting linkage lengths, technicians ensure the surfaces move to the correct positions and the airplane responds precisely to pilot input. Proper rigging gives the intended control feel, authority, and trim, so the aircraft flies as designed and handles predictably.

The other descriptions don’t fit rigging: one talks about the potential future impact of an untreated hazard, another about a gyroscope’s behavior, and the last about the basic elements of risk management in aviation.