electronic speed controller (ESC)

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

electronic speed control (ESC)

electric speed control (ESC)

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

electronic protective measure (EPM) / electronic counter-countermeasure (ECCM) / electronic protection (EP)

propeller speed controller

supersonic speed (exceeds speed of sound / Mach 1)

variable-speed with speed control

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

cruise speed / cruising speed

Nr gauge (Nr = speed of rotation) / rotor speed sensor

electronic emulation and electronic countermeasures system (Leer-2) on Tigr-M chassis

mobile electronic emulation and electronic countermeasures system (Leer-2) on Tigr-M chassis

electronic counter-countermeasures (ECCM) / electronic protective measures (EPM)

air controller

controller (exercises)

fighter controller

forward air controller (FAC)

Special Operations Terminal Attack Controller (SOTAC)

tactical air controller

joint terminal attack controller (JTAC)

forward air controller (airborne) FAC(A)

forward air controller party

ground-based forward air controller

heliborne forward air controller

brake controller

combat controller

Controller Interceptor Trainer (CIT)

fluid-operated controller

differential pressure controller

pressure ratio controller

controller clearance