Originally Posted by
LTNman
The noise contours were last done in 2011, which is a year before the arrival of Easyjet. As most will know noise is measured in dB but what most folk won't know is that for every additional 3dB of noise the noise level increases by 100% as noise is measured on a logarithmic scale. This is why contour maps are in 3dB segments.
......... and I believe the A320neo is around 3db quieter than the A320ceo. There is one neo now based at SEN and reportedly it will be joined by a second such aircraft. The reduction in noise levels is very noticeable and has been commented on locally.