text: EFFECT OF HIGH SPEED FLIGHT 
  
  Many different factors may be of structural 
  importance in high speed flight. Any one or 
  combination of these factors may be encount- 
  ered if the airplane is operated beyond the 
  limit (or redline) airspeed. 
  
  At speeds beyond the limit speed the air- 
  plane may encounter a critical gust. This is 
  especially true of a high aspect ratio airplane 
  load factor. Of course, this 
  with a low limit 
  
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