PPRuNe Forums - View Single Post - A320 aerodynamic "whoop" sound
Thread: A320 aerodynamic "whoop" sound
View Single Post
Old 19th Jan 2011, 10:35
  #2 (permalink)  
Otto Throttle
 
Join Date: Oct 2008
Location: UK
Posts: 361
Likes: 0
Received 0 Likes on 0 Posts
Almost certainly the selection of flaps and slats. It can be so noticeable for those under approaches to airports that often this is the first sound you hear, long before any engine noise.
Otto Throttle is offline  
Reply