Goggle fan speed

Goggle fan speed rendered by the goggles

observed fire fan (OF fan)

Ground Panoramic Night Vision Goggle (GPNVG)

Enhanced Night Vision Goggle-Binocular (ENVG-B)

Goggle DVR status

Goggle DVR status rendered by the goggles

Goggle link quality

Goggle system warnings

Goggle voltage

Goggle voltage rendered by the goggles

supersonic speed (exceeds speed of sound / Mach 1)

variable-speed with speed control

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

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

Motor PWM speed separated from PID speed

duct-enclosed fan

duct-inclosed fan

fan

fan exit duct

fan method (of reconnaissance)

crankshaft fan pulley

unducted fan (engine)

fan drive propeller shaft

fan hub clutch

fan mounting bracket

fan shaft

fan-like action

fan-powered aircraft

fan thrust reverser

prop-fan engine

recirculation fan

axial fan