Скачать с ютуб What is the BARKING SOUND on Airbus planes??? в хорошем качестве

What is the BARKING SOUND on Airbus planes???

📗📗📗GET MY NEW BOOK https://amzn.to/32TH4x7 📗📗📗 INSTAGRAM FLYWITHCAPTAINJOE: https://goo.gl/TToDlg MY WEBSITE: https://goo.gl/KGTSWK I'm sure many of you have heard this sound before?  Yes I does sound like a barking dog, or someone trying to start a malfunction chainsaw in belly of the airplane.  But in actual fact what you can hear here, is the PTU on Airbus airplane. PTU stands for Power transfer Unit.  The PTU comes on either during engine start or engine shutdown.  The green & yellow hydraulic systems, the normal source of pressure is the Engine Driven Pump and the auxiliary source is the Power Transfer Unit (PTU). The PTU is a hydraulic motor pump which transfers hydraulic power between the green and yellow systems without transfer of fluid. It operates automatically, whenever the pressure differential between the two systems reaches 500 PSI. Which is the case during engine start or shutdown on the ground!  I hope you enjoyed this video and learned a little aviation fact for today! More to come tomorrow! Wishing you all the best! Joe ALL COPYRIGHTS TO THIS VIDEO ARE OWNED BY FLYWITHCAPTAINJOE.COM ANY COPYING OR ILLEGALLY DOWNLOADING AND PUBLISHING ON OTHER PLATFORMS WILL FOLLOW LEGAL CONSEQUENCES