What is the maximum speed for aircraft operating in Class B airspace unless otherwise required?

The maximum speed for aircraft operating in Class B airspace is indeed 200 KIAS (Knots Indicated Airspeed) unless otherwise required. This restriction is in place to ensure safety and maintain orderly traffic flow around busy airports typically associated with Class B airspace. Class B airspace is designed to handle large volumes of aircraft, and the speed limit helps reduce the risks of collisions and facilitates easier communication and navigation.

Additionally, the 200 KIAS limit helps pilots maintain better control and situational awareness in the congested airspace often found in and around major urban areas. It's important to note that while the Class B airspace imposes this specific speed limit, pilots must remain vigilant and comply with any other speed restrictions that may be communicated by air traffic control as necessary for safety and efficiency.