PPRuNe Forums - View Single Post - Air Asia Indonesia Lost Contact from Surabaya to Singapore
Old 4th Feb 2015, 19:12
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silverstrata
 
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Flexpwr:

To my knowledge, no commercial aircraft is ever directly "commanding" an attitude with either a stick or control column.
I'll see your confident gambit, and raise you ten....

The 737 in CWS mode does exactly that - it commands and maintains an attitude (always in pitch and sometimes in bank). And CWS is controlled by the control column. Which is why I thought the A320 must be doing the same type of thing.


Flexpwr:

I recommend that you spend some time in the Tech Log and get a good grip with the concept of Airbus FBW before suggesting this is nonsense, or why would anyone design such a thing.
If you hold a constant 'g' with a decreasing speed the system will require an increasing pitch attitude to maintain 'g'. Conversely, holding an attitude will merely hold a constant attitude. The first design will get you into trouble before the second.

Any other questions?
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