What is the radius of an MSA?

The radius of a Minimum Safety Area (MSA) is defined as 25 nautical miles (nm). This distance is established to ensure safe maneuverability and operational safety for aircraft during various phases of flight, particularly during takeoff and landing. The 25 nm radius provides a buffer zone that can accommodate the aircraft's operational requirements while considering factors such as air traffic, potential emergencies, and navigational safety.

Understanding the significance of the MSA radius is crucial for pilots, air traffic controllers, and aviation safety officials. It reflects a standard adopted in aviation practices that helps to coordinate airspace usage effectively, ensuring safety and efficiency in aircraft operations.