Originally Posted by Machinbird
The reason for a very long LOC event is fairly obvious, the Airbus FBW system was still in control.
There is not so much left of the FBW to control in ALT2 Law. Wasn't it one of the first events to be triggered at 0210?
Or you'll have to start your sequence even earlier, which is even worst considering this timming issue at stake.
Originally Posted by Machinbird
But how was the airspeed lost so quickly? Logically the aircraft departed controlled flight with a strong upward vector.
Now if someone can match up these endpoints, we will likely come very close to the cause of the loss of AF447 without even using the recorder data
I'm believing that those end points can only be matched if every starting assumptions made is basically correct. If one discard something, like ALT2 law, one will certainly end with two fairly unmatchable end points.
Originally Posted by grity
henra theoretical: if the bird is without any control but starts with an extrem climb mayby 60 deg, this (~balistic) path will reach a maximal high of ~12700m (full change the kinetic horizontal energie into potencial energie), while reducing the speed to very low untill it will deap stall and if it then fall with a stable AOA of 50-60 deg. back to 10500m and afterwards down to zero.....
this path could need ~100 sec longer than yours and can end within a range of 8000
When this
"zoom & boom scenario" is considered, it will seem obvious that those fully monitored engines (from Brazil take off to 0214:26) will trigger at least "ENG STALL" ECAM warnings and all related ACARS.
Remember that F-GZCP engines were working "fine" during all the sequence covered - dixit the BEA as well.