Originally Posted by
dixi188
Where I live we have a 747-8 VIP machine that is no noisier than the 737-800.
That's to be expected - an aircraft in VIP configuration will typically be a lot lighter than the same aircraft full of pax or cargo, and consequently a fair bit quieter.
The ICAO certificated flyover noise level for a B748 at max weight is about 6 EPNdB higher than the B738, so roughly 4 times as noisy.