Did you notice if the message is showing after you inserted the fuel figure but the fuel is not yet on board ?
I understand you have the on ground auto trim setup option, would you have an option for the aircraft to estimate its CG through the landing gear ?
I believe the best option would be to directly question Airbus through your management. This is a very interesting question.
The fuel is done, ready to go, inserting ZFW/ZFWCG and sometimes getting the message, sometimes not. Today absolutely wild CG didn't trigger any message... and the stab trim set itself automatically accordingly that wild entry.
Looks like there is nothing there to measure the actual CG. We only enter the starting point and then the FCMC calculates CG change with fuel movement and carries on the initial entry mistake, if any. But the ECAM message and its explanation in the FCOM are totally confusing and don't fall in line with my understanding of the system.
Last edited by Romasik; 18th Feb 2013 at 15:06.