PPRuNe Forums - View Single Post - Vortex Generators
Thread: Vortex Generators
View Single Post
Old 3rd December 2011 | 09:06
  #12 (permalink)  
Advs
 
Joined: Nov 2011
Posts: 40
Likes: 0
From: victoria
Reducing the noise by 3 decibels is equal to halving the total energy of the sound.
Human ears more than 85db causes damage and more than 140db causes pain. Give or take a few.
Advs is offline  
Reply
0