PPRuNe Forums - View Single Post - F-35 Cancelled, then what ?
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Old 20th May 2014, 21:22
  #4466 (permalink)  
gr4techie
 
Join Date: Feb 2012
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Jet noise comparison
Comparing the sound of aircraft in dB can be misleading, an difference of just a few dB can in reality be quite a lot. As dB is not a linear scale but logarithmic. The way I interpret it, for every 10dB the noise increase by a power of 10.
10dB=10
20dB=100
30dB=1000

As noise is considered, I reckon the Tornado GR4, with it's constant speed and variable noise is way up the league table. It amuses me when you compare the thrust of noisy "fast" jets with much quieter civvy airliners.

Anyway, I'm glad I won't be trying to sleep on an aircraft carrier with F-35's above me.
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