airborne forward air controller

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

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

forward air controller (airborne) FAC(A)

forward air controller (FAC)

forward air controller party

ground-based forward air controller

heliborne forward air controller

airborne drone controller

air support field pack, field pack air support, airborne / para (air support) / Pathfinder Bergen

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

Boeing E-4 Advanced Airborne Command Post (AACP) / E-4 National Airborne Operations Center (NAOC)

air controller

tactical air controller

air traffic controller (ATCo)

air intercept controller

forward air control

forward area air defense command, control, communications and intelligence (FAAD C3I)

forward air support operations centre

air assault and airborne forces

air assault and airborne operations

airborne tactical air battle control system

controller (exercises)

fighter controller

Special Operations Terminal Attack Controller (SOTAC)

joint terminal attack controller (JTAC)

brake controller

combat controller

Controller Interceptor Trainer (CIT)

fluid-operated controller

differential pressure controller

pressure ratio controller

propeller speed controller