The noise of flying machines can be a source of joy or annoyance. Let’s have a look at what makes that noise and how much progress has been made over the years!

The F-84F Thunderbirds team


The XF-84H ‘Thunderscreech’!


The Boeing Dash 80, prototype of the B707


Noise creating vortices coming from an airliner’s flaps


The Bypass section of a RR Trent


A possible Airbus blended body design


An APU exhaust


The Gyrodyne Rotorcycle


Images are displayed under Creative Commons licence with thanks to – Airbus, the USAF, Boeing Dreamscape, David Monniaux and the US DOD.