Which AAC category encompasses speeds from 141 to less than 166 knots?

The correct classification for aircraft with speeds from 141 to less than 166 knots falls under AAC Category C. This categorization is essential for airport operations, particularly in context to runway management, air traffic control, and procedural planning.

Categories A, B, C, and D are defined by their approach and landing speeds, which help in determining the necessary spacing and operational protocols for aircraft during both takeoff and landing. Category C specifically includes aircraft that have a maximum approach speed of less than 166 knots and helps ensure safe and efficient airport operations by appropriately managing these aircraft along with their wake turbulence and aerodynamic characteristics.

Understanding the speed classifications of aircraft is critical in maintaining safe air traffic flows, minimizing delays, and enhancing overall safety in airport operations. This is why recognizing Category C as the appropriate option is important for individuals preparing for airport operational responsibilities.