What are the three categories of airspace where drone operations are not allowed without permission?

Drone operations are subject to various restrictions, and understanding the classification of airspaces is crucial for safe and legal flying. The three categories where drone operations are not permitted without permission are Restricted, Prohibited, and Temporary Flight Restriction (TFR).

Restricted airspace includes areas that are off-limits to general aviation due to security or safety reasons, such as near military bases or sensitive national sites. Prohibited airspace is even more stringent, where no aircraft, including drones, are allowed to operate at all times without special authorization, typically for national security. Temporary Flight Restrictions are issued for specific events, such as disasters or large public gatherings, where drones would pose a safety risk, thus requiring pre-approval for any operation in these areas.

The other choices do not accurately reflect the critical categories that impact drone operations. For instance, while Class A, B, and C airspaces are important classifications used for manned aircraft, they don't specifically address the unique permissions required for drone operations. Similarly, military, commercial, and private airspace is not a recognized term in the context of airspace restrictions for drone usage. Lastly, the concept of national, state, and local airspace does not convey specific legal classifications relevant to drone operations and their restrictions.