unmanned aircraft (UA)

small tactical unmanned aircraft system (STUAS)

jamming unmanned aircraft system

low altitude unmanned research aircraft

low altitude/airspeed unmanned aircraft

multi-role unmanned aircraft system

small tactical unmanned aircraft system

tactical unmanned aircraft system (TUAS)

unmanned aircraft system traffic management

unmanned aircraft systems operator

unmanned aircraft systems training battalion

small unmanned aircraft system (sUAS)

unmanned aircraft system

training aircraft (tng acft) / trainer aircraft

aircraft accident (flight accident; aircraft mishap)

aircraft armaments / aircraft weapons

aircraft accident / flight accident, aircraft mishap

aircraft mishap / flight accident, aircraft accident

aircraft modernization / aircraft upgrade

aircraft track and balance (adjusting balance of aircraft)

aircraft upgrade / aircraft modernization

aircraft weapons / aircraft armaments

flight accident / aircraft accident, aircraft mishap

low flying aircraft / low-flying aircraft

anti-aircraft artillery observation aircraft

Integrated Modular Unmanned Ground System (iMUGS)

Joint Architecture for Unmanned Systems (JAUS)

manned and unmanned systems integration capability (MUSIC)

manned and unmanned teaming (MUM-T)

nano-unmanned aerial system (nUAS)

unmanned

Unmanned Aerial Vehicle (UAV)

Unmanned Carrier Launched Airborne Surveillance and Strike System (UCLASS)