BAE 146 Question
Hi,
I've recently had the need to fly in and out of London City and hence have been a pax on the 146 for the first time. On a recent flight I was sitting beside the wing and on our initial climb there was a very loud noise as the flaps were been raised. I've flown on many different aircraft but never heard this on anything other than the 146. So the question is - why is this flap system so noisy?? - what are the mechanics behind it that make it so different to other jets, such as 7xx or A3xx?