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Old 15th May 2021, 14:41
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PJ2
 
Join Date: Mar 2003
Location: BC
Age: 76
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Dave, here's a quotation from a 1998 Boeing document that may touch on what you're looking for:

" Aerodynamic principles of large aircraft upsets An airplane stall is characterized by any one (or a combination) of the following conditions:
  • Buffeting.
  • Lack of pitch authority.
  • Lack of roll control.
  • Inability to arrest descent rate.
These conditions are usually accompanied by a continuous stall warning. A stall must not be confused with the stall warning that alerts the pilot to an approaching stall. Recovery from an approach to stall is not the same as a recovery from an actual stall. An approach to stall is a controlled flight maneuver; a stall is an out-of-control, but recoverable, condition. "
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