In which airspace type is the speed restricted to 200 KIAS when operating below its lateral limits?

The correct answer relates to the operational limitations imposed on aircraft within Class B airspace. In the United States, Class B airspace is typically associated with the busiest airports, and it serves to manage high traffic volumes safely and efficiently. One of the key regulations for aircraft operating within Class B airspace, specifically when flying below its lateral limits, is the restriction on airspeed to a maximum of 200 knots indicated airspeed (KIAS).

This limit aims to reduce the speed of aircraft in close proximity to significant airports, mitigating the risk of collisions and facilitating smoother traffic patterns. The rule reflects considerations of safety and air traffic management, ensuring pilots maintain a controllable speed when navigating near densely populated terminal areas.

Other airspace classes such as Class C, Class D, and restricted airspace have their own specific regulations, but they do not impose the same blanket speed restriction specifically when operating below their lateral boundaries. For instance, Class C and D airspaces primarily focus on communications requirements and may not have the same speed limit applied, while restricted airspace is designated for areas where special activities are ongoing but does not universally limit speed to 200 KIAS. Understanding these distinctions is vital for pilots to ensure compliance and safety during operations.