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Old 7th May 2004 | 00:16
  #28 (permalink)  
homeguard
 
Joined: Nov 2003
Posts: 636
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From: notts
Wing drop

I'm glad that at least some people have responded to BEagle's contribution with understanding.

If a wing stalls and drops then the angle of attack of that wing increases further while rolling leading to a wing tip stall. To further increase the angle of attack of the wing tip by using aileron is foolish and simply wrong. The first action must be to pitch forward and unstall the wing whatever the aircraft attitude to the horison. Angle of bank is irrelevent. Rudder is applied only to prevent FURTHER YAW. It does not matter how many engines that you have in this respect, always unstall the wing first. At most, any other actions are simultaneous, are never more important and certainly do not precede any action to reduce the A of A.

It is true that one assesses the INITIAL wing drop during a Cof A flight test to be no more than 20 degrees following the stall and that ailerons should be effective at the critical angle of attack. But, that no way infers that the use of ailerons at the stall is the correct action for recovery. It is an airworthiness control assessment only.

To complain that the wing should drop at all is, with respect, unreasonable. The more stable the aircraft is and therefore resistant to change, perhaps from mishandling, then the more resistant it will be to recovery following mishandling. A double edged sword!
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