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Old 5th Jul 2012, 17:30
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Clandestino
 
Join Date: Feb 2005
Location: Correr es mi destino por no llevar papel
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Originally Posted by syseng68k
but one thing that stood out for me on initial scan was the
paragraph on the horizontal stabiliser, p218, 5.3.1.2, where
the concept of "pitch runaway" is discussed.
Errr... discussed was the "pitch runaway" that could result from engaging the autopilot that would follow the false air data, not "stabilizer runaway".

Originally Posted by syseng68k
I'm sure that this must have been discussed at length elsewhere
in the topic, but would have assumed that any sensible system
design would inhibit ap engagement, or any autoflight function,
unless airspeeds are known good.
Problem is that it is easy to use computer to detect failed airspeed indicator but the system that can detect unreliable airspeed needs to be truly intelligent. No replacement for human pilot there is currently available.
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