PPRuNe Forums - View Single Post - Unable to see and correct or even react to drift.....
Old 16th November 2015 | 13:39
  #18 (permalink)  
Pull what
 
Joined: Feb 2009
Posts: 858
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From: England
Sorry I expressed myself wrong, the vertical fin is the primary surface for longitudinal stability,
The horizontal fin(if fitted) is the primary fixed surface for longitudnal stability
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