Final answer:
Flight control locks have a safety system to prevent unintended aircraft movement or control inputs.
Step-by-step explanation:
Flight control locks must have a safety system to prevent unintended aircraft movement or control inputs. This safety system is designed to ensure that the controls cannot be inadvertently activated or altered, which could result in dangerous and unintended movements of the aircraft. For example, a flight control lock may prevent the movement of the control stick or yoke, ensuring that the aircraft remains stationary or in a predetermined position when it is not in use.