Multiple Brushless Motors, Spinning, Smooth Whirring, Medium Speed Robot-Like Articulations, Pitch Bends

Electric Fan Motor, CU, Object Buzzing Against Blades, Dynamic Speed and Pitch, Skittering, Morphing

Dense Rotation Whir, Droning Air Chop, Sputtering Hum, Large Zip Tie in Weed Whacker, Start, Run, Stop, Movement, Perspective Change, Intensity and Pitch Varies, Beating Buzz, Swell, Whomp, Flap, Fan, Helicopter, Drone, Engine, Blower, Industrial, Two Vers

Dense Rotation Whir, Droning Air Thumps, Deep Sputtering Hum, Cardboard Cross in Weed Whacker, Long Run, Swells, Movement, Perspective Change, Intensity Varies, Beating Buzz, Whine, Swell, Flap, Some Grinding, Fan, Helicopter, Drone, Engine, Blower, Indust

Machinery Hum, Metal Ammo Box on Weed Whacker Motor, Resonate, Deep Buzz, Whir, Hollow, Movement

Large Freezer Motor, CU, Rattle, Vibration, Knocking, Clicks, Low Electrical Hum, Constant

Small Motor, Start and Stop, Short Zaps, Zingy, Electric, Movements, Machinery, Servo

Turbine Running, Start, Whine, Whir, Buzz

Generator, Start, Shirt Run, Off, Noisy Hum

APU Tractor, Revving, Engine Rumble, Whistle, Maneuvering, Brake Squeaks