Phenomenon
Drones and unmanned aircraft
A remotely piloted or autonomous aircraft, commercial or military, operating in the observed airspace.
How it presents
- Powered, deliberate flight with station-keeping and repeatable transits.
- Rotor or propeller acoustics when audio exists.
- Endurance and altitude consistent with a known airframe class.
What this explanation does not settle
Identifying a craft as a drone answers what it is, not whose it is. Unattributed drone activity over restricted airspace remains a security finding, not a closed case.
No published file in the archive currently carries this resolution. The page stays as a reference definition rather than being padded with unrelated material.