Pielander
Typing error I guess. You obviously meant to say even if it is in a vacuum.
A spaceship flying through space will make a lot of noise. Noise doesn't need air. It is a vibration of any medium.
I think this is what was nagging Turbofan. He was thinking all this commotion - where is it going to? And the answer is of course all the noise generated by smashing into the atmosphere isn't being generated (so no problem there) whilst the noise of the engines etc is propogating around the vessel but not transferring into the medium surrounding the vessel.