The maximum indicated airspeed permitted when operating an aircraft within 4 NM of the primary airport in Class D airspace is?

In Class D airspace, the maximum indicated airspeed limits are designed to enhance safety and efficiency in areas closely associated with airports, where aircraft are typically transitioning for landing or takeoff. When operating within 4 nautical miles of the primary airport, the maximum indicated airspeed is set at 200 knots. This speed limit helps reduce the potential for conflicts and allows pilots to better manage their approach and departure procedures in crowded airspace.

Traveling at or below this limit enables better communication and coordination with ATC, allowing for smoother operations in a more congested environment. Pilots need to be aware of these speed restrictions to minimize the risk of incidents and maintain safety standards while operating near an airport.