What weight does the auto balance system aim to maintain within the wing tanks?

The auto balance system in aircraft is designed to maintain a consistent and optimal weight distribution within the wing tanks to ensure stable flight characteristics. The chosen answer, which is 20 pounds, reflects the specific target weight that the system aims to balance between the two wing tanks. Maintaining this balance is crucial during different phases of flight, as it helps prevent adverse aerodynamic effects that can occur due to uneven weight distribution. By aiming for this specific weight, the auto balance system enhances the overall performance and safety of the aircraft.

In the context of this question, other weight options do not reflect the operational standards for the system. Hence, while understanding that various weights might seem plausible, only the value of 20 pounds aligns with the engineering goals set for managing wing tank balance effectively.