Night flights not such a good deal
The main crux of his argument is that on the QC scale the proposed flights would be a quarter as noisy as 747s. However we are actually talking about 6db less noise. Not so much I think.
Tony tells us the
new airbus A380 is rated at QC0.5 on landing and QC 2which means 87 to 89.9 EPNdB on landing and 93 to 95.9 EPNdB on take off. That's still a lot of sound.
Yes, technically there is a significantly greater amount of energy needed to make 95db as 89db but the difference to our ears is quite small. The wikipedia tells us that
due to the logarithmic nature of human aural perception, this 3dB change is only perceived as a small change in the noise level. So while the white cliffs of Ramsgate might suffer less is this argument just one of degrees?
I think it is.
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