Salute!
Surprised to see the question and the responses.
The AF447 threads went over this and over this and ....
Way I understand it:
- A gee command for pitch that is corrected for pitch attitude, but basically a one gee command with stick neutral. So at 30 deg of climb, the FBW attempts to hold about 0.87 gee. No regard for speed until AoA gets to some limit, and then the system relaxes the gee to keep from stalling. The basic jet seems very benign, but the FBW control laws can get in the way under a few situations/conditions.
- The FBW control laws in "normal" or even a back-up mode continue with this gee implementation except some "protections are lost for max roll and pitch and other "limits".
- The hozontail tail will trim to maintain the gee command and reduce the need for back stick so the elevators can return to "neutral".
Some folks from the AF447 thread can add/correct to this description.
Last edited by gums; 2nd Jan 2013 at 18:44.