What is the designated maximum speed limit inside the Circle of Safety around an aircraft?

The maximum speed limit inside the Circle of Safety around an aircraft is set at a very low threshold to ensure the safety of personnel and equipment in close proximity to large and potentially dangerous machinery. The designated speed limit of 3 mph allows for controlled movement, reducing the risk of accidents and allowing ground crew members to react quickly in the event of unexpected situations.

This speed limit is particularly important when considering the weight, size, and operational characteristics of aircraft, as well as the presence of personnel working around them. By maintaining a slower pace, it enhances overall safety, enabling thorough situational awareness, thus preventing potential accidents or injuries caused by collisions or other unsafe interactions.

The other options reflect higher speeds that would undermine the focus on safety and vigilance required in such sensitive environments.