Noise levels of fighter jets.

[F-15 Eagle]

No, it is wrong. Normal human ear possible cant hear 6dB, but 6 dB DIFFERENCE is very easy to notice. Remember, 6 dB difference is ~2 times stronger sound. I'll bet everyone can hear that...

Well it just goes to show that i don't know much about dB and noise levels.

 

[SlyDog]

Well...its a bit tricky.

Physically are an increase of 6 dB of sound level 2 times stronger.

The ear perceive 6-10 dB as 2 times stronger - depending on frequency, individual difference and sound level. The human hearing are somewhat "compressed" so to speak.

 

[F-15 Eagle]

I was a little surprised that the F-15 does not make as much noise as the F-16, F-18 and F-35 do. I've seen F-15s fly close to me in person before and their very very loud. It does make me wounder how much louder a F-35 will be if it is 3 dB louder than the F-15.