What is the maximum operating speed within 4 nautical miles of a Primary airport for Class Delta airspace?

The maximum operating speed within 4 nautical miles of a primary airport in Class Delta airspace is 200 knots. This speed restriction is in place to promote the safety and efficiency of operations in busy airspace, particularly near airports where takeoffs and landings occur frequently.

Class Delta airspace typically surrounds airports with an operational control tower, and the lower speed limit helps ensure that aircraft can safely maneuver around one another, especially when considering the multitude of traffic in a small area.

Maintaining speeds below this limit allows pilots to have greater control and provides a buffer for air traffic controllers to manage incoming and departing traffic effectively. This regulation is crucial for maintaining safety as aircraft transition into either departure or approach phases near the airport.

In contrast, the other speed choices exceed the established limit for this specific airspace classification and would not be compliant with the operational standards necessary to ensure safe traffic management close to a primary airport.