Drone Pilot Practice Exam 2026 – Complete Test Prep Guide

Class A airspace begins at 18,000 feet Mean Sea Level (MSL) and extends up to and including 60,000 feet MSL. This airspace is primarily designed for high-altitude operations of aircraft, where air traffic control services are required for all flights. Because Class A airspace operates within the National Airspace System, it plays a crucial role in managing the flow of air traffic and ensuring safety at higher altitudes where commercial airliners and other aircraft typically operate.

Understanding where Class A airspace starts is essential for drone pilots and other aviators, especially since drones cannot typically operate in this airspace without special authorization. By knowing that Class A airspace begins at 18,000 feet, pilots can better plan their missions and remain compliant with aviation regulations, preventing issues related to airspace violations and enhancing overall safety in the skies.