Noise Before Take Off - Airbus Mainly
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Join Date: Apr 2009
Location: bristol
Age: 49
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Noise Before Take Off - Airbus Mainly
Just before i begin i would like to point out i'm not a pilot, but i do fly a lot and i have noticed before take off mainly on Airbus 319 / 320 there is a sound that sounds like someone is putting rivets into the metal work, a sound i almost expect each time i take off now.
Can anyone inform me what this noise is ?
Can anyone inform me what this noise is ?
Nice
Join Date: Oct 2003
Location: All Over
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Hydraulic power transfer unit (PTU). Sounds like sawing or a dog barking. A quick search will provide a more thorough answer, this question is asked about once a week so better not take up much more bandwidth with it! 
Join Date: Nov 2007
Location: Northampton
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so better not take up much more bandwidth with it!
Or is that just your way of reminding him of the "search" facility, which in itself probably took up some "bandwidth"
