PPRuNe Forums - View Single Post - EC155 incident, SNS, 6 Nov 2013
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Old 23rd Jul 2014, 21:45
  #144 (permalink)  
HeliComparator
 
Join Date: Aug 2004
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Originally Posted by JohnDixson
... That brings to mind something that has yet to be mentioned re this case: the pitch attitudes that are described in the reports are pretty extreme. I saw no mention of any command pitch attitude limits within the 155's AFCS/Autopilot software ( and I'd assume they are there, with numbers far less than the aircraft achieved ) or was the situation that those attitudes were achieved by the aircraft with the systems disabled?
Yes there are pitch attitude limits for when the automation is driving. But not for when the pilot is driving. In the case in question the extreme attitudes were reached as a result of pilot intervention, both directly, and then, I suspect, consequential to the pilot releasing the controls back to the autopilot whilst out of trim.
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