That dog barking sound is caused by the Power Transfer Unit [PTU], a device used on twin engined planes to conserve fuel.It is also designed to power the hydraulic systems in the aircraft.So when The PTU cycles on and off when pressure fluctuates,it generates a loud,recurrent sound like that of a dog barking
@MSydney2022
2 жыл бұрын
Thank you for the detailed explanation, so I guess it's nothing to worry about?
@paulkaturuza
2 жыл бұрын
@@MSydney2022 not at all. It makes many people nervous though 😂. And keep up posting nice videos!
@creativesports-2022
2 жыл бұрын
@@paulkaturuza lol..well i was as well..lol thanks
@RyanZ225_PC
2 жыл бұрын
@@MSydney2022 You’ll hear the PTU barking a lot during engine start and when the gear comes up or down especially if you sit in between the wings on any Airbus A320 family aircraft. Some other planes do have PTU, but its only on the Airbus A320 family that you can hear it as far as I know.
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