heliborne forward air controller

proportional–integral–derivative controller (PID controller / three-term controller)

terminal attack controller (TAC) (= forward air controller)

forward air controller (FAC)

forward air controller (airborne) FAC(A)

forward air controller party

ground-based forward air controller

airborne forward air controller

forward observer (FO), forward observation officer; (artillery) observer / spotter

common heliborne jammer

heliborne

heliborne assault

heliborne assault force

heliborne attack

heliborne emitter location / countermeasures

heliborne forces

heliborne illumination system

heliborne landing

heliborne unit

heliborne visit, board, search and seizure

precision aim-technique heliborne antitank

heliborne laser fire and forget missile

air controller

tactical air controller

air traffic controller (ATCo)

air intercept controller

controller (exercises)

fighter controller

Special Operations Terminal Attack Controller (SOTAC)

joint terminal attack controller (JTAC)

brake controller

combat controller

Controller Interceptor Trainer (CIT)