Commercial Pilot License (CPL) Practice Exam

In Class B airspace, the maximum airspeed below 10,000 feet is 250 KIAS (Knots Indicated Airspeed). This regulation is in place to ensure safety and maintain an orderly flow of air traffic in busy terminal areas where Class B airspace is typically found.

The restriction on airspeed helps to prevent faster aircraft from creating wake turbulence hazards for slower, smaller aircraft that may also be operating in the same area. Keeping the airspeed limit at 250 KIAS below 10,000 feet allows for better separation between aircraft, reducing the likelihood of conflicts, and improving overall safety in high-traffic environments.

Understanding the designations of different airspaces, such as Class B, C, D, and E, along with their respective operational rules and limits, is crucial for pilots. Other airspeed limits in different airspace classes or altitude ranges do exist, but for Class B below 10,000 feet, the focus is specifically on maintaining a limit of 250 KIAS.