What is the speed limit for aircraft within 4 NM of a Class C airport at below 2,500 feet AGL?

The speed limit for aircraft within 4 nautical miles of a Class C airport at altitudes below 2,500 feet AGL is set at 200 knots. This regulation is in place to ensure safe operations in the vicinity of busy air traffic and to minimize the risk of wake turbulence and other potential hazards that can arise in the vicinity of airports. By maintaining a lower speed, pilots have more time to react to any unexpected traffic or changes in their own flight conditions, enhancing safety for both themselves and other aircraft.

The regulations aim to facilitate orderly traffic flow and ensure that pilots can effectively manage their approach and landing procedures, particularly in complex airspace scenarios that involve various aircraft types and pilot experience levels. This speed limit helps to maintain a balance between efficiency and safety, aligning with the overall objectives of airspace management around major air transportation hubs.