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Old 4th Apr 2013, 10:02
  #15 (permalink)  
Uplinker
 
Join Date: Nov 1999
Location: UK
Posts: 2,524
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Absolutely !

RetiredF4 ; I have tried to post the Airbus control diagram here for you, as promised, but it has turned out to be too difficult for my limited IT skills, sorry!

Anyway, the point is that there are two separate feedback paths to the flight control computers. One measures the control surface itself - that it has moved where the flight control computer ordered it to go and how far; The second is a "response" feedback which measures how the aircraft moved following the control order, and modifies that order if the aircraft did not respond as required. Both these feedbacks combine to give a sort of attitude stability, meaning that the pilot, when hand flying, does not need to react to every adverse movement the atmosphere causes, (and if s/he does they may find they are 'fighting' the control computers). Better to back off slightly and guide the aircraft rather than actively countering every movement. When hand flying in conditions of heavy turbulence on approach though, the side stick may need to be moved to its' limits to keep to the required flight path.



U

Last edited by Uplinker; 4th Apr 2013 at 10:04.
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