Which of the following does NOT contribute to aircraft size affecting induced rolling?

The correct choice is based on the understanding of how induced rolling in aircraft is influenced by various factors, particularly the design and physical characteristics of the aircraft. The distance to the ground is not a direct contributor to induced rolling, which primarily results from the interaction of the aircraft's wake and the airflow around its wings.

Induced rolling is affected by wing design because the shape and configuration of the wings influence how lift is generated and how that lift interacts with the surrounding air. A larger wingspan or different wing configurations can create varying levels of induced drag and changes in airflow patterns, which can enhance or mitigate rolling effects.

The distance from the leading aircraft is relevant, as closer proximities can lead to stronger wake turbulence, which directly affects the following aircraft's stability and can induce rolling moments. Similarly, the weight of the aircraft plays a role because heavier aircraft create more pronounced wake turbulence, which can create more significant effects on nearby aircraft.

In contrast, while the distance to the ground could affect instantaneous performer characteristics like ground effect, it does not directly influence the mechanics of induced rolling as it relates to the characteristics of wake turbulence and wing performance. Thus, this factor stands apart from the others that directly contribute to induced rolling in aviation contexts.