PPRuNe Forums - View Single Post - AF 447 Search to resume
View Single Post
Old 15th Aug 2010, 16:23
  #1907 (permalink)  
Join Date: Jul 2009
Location: Not far from a big Lake
Age: 78
Posts: 1,459
Just a gut feeling at the moment, but I suspect there is another still higher angle of attack where drag+ lift will balance the aircraft weight in a nearly level attitude. Problem is, no one has published the data for A330 Cd & Cl at ridiculously high angles of attack. You may be able to find data for other type jet transport accidents and get meaningful data since at very high angle of attack the actual shape of the airfoil becomes less important than wing area, aspect ratio, and wing sweep angle. In a 40 degree AOA for example, wing twist factors will likely have minimal impact. If sufficient data from older accidents is not available, I suppose you could use NASA panel codes to come up with meaningful data. Unfortunately I am not sufficiently versed in Aerodynamics to produce a useful result in a useful time frame.
Machinbird is offline