What is the maximum speed limit in Class C and D airspace below 2500 AGL within 4 nautical miles of the airport?

In Class C and D airspace, below 2500 feet AGL and within 4 nautical miles of the airport, the maximum speed limit is set at 200 knots indicated airspeed (KIAS). This regulation is in place to enhance safety and facilitate the management of air traffic in busy terminal areas, reducing the risk of mid-air collisions and ensuring that aircraft can operate safely in close proximity to the airport.

The limitation to 200 KIAS helps maintain a standard speed that is manageable for pilots who may be dealing with various factors such as traffic, weather, and runway configurations. This speed restriction allows air traffic control to provide clearer and more effective instructions to pilots, keeping operations orderly and predictable in these busy airspaces. The difference in speed limits among various classes of airspace reflects the varied levels of air traffic and other operational considerations present in each type.