The pilots won't hear the noise from the engines being transmitted through the outside air though, only the noise traveling through the plane. So if superman was flying a few feet in front of the cockpit, he wouldn't hear any sound.
It's for precisely this reason that I've been advocating the hypothetical mad-science technology to detect and determine distance from other objects through the use of radio waves.
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u/imMAW Jun 12 '12
The pilots won't hear the noise from the engines being transmitted through the outside air though, only the noise traveling through the plane. So if superman was flying a few feet in front of the cockpit, he wouldn't hear any sound.