Originally Posted by RF4
BEA only tells us, that the flight control inputs in the simulator produced comparable outputs to the flight controls and caused comparable flight behaviour.
BEA tells us on p.41 of IR#3:
At the request of the BEA, Airbus conducted a simulation of the operation of the flight control computers,
This could be a computer simulation rather than one in a fixed-base or moving-base flight simulator.
Originally Posted by OK465
there is no direct statement of finding to the effect that after the aircraft exited the flight envelope the aircraft longitudinal movements were still consistent with these pilot inputs even though control surface positions were.
That statement presupposes knowledge of the aerodynamic characteristics outside of the envelope where these characteristics have been established by flight test, perhaps extrapolated using wind tunnel data.
If these characteristics
were known, it would not be particularly difficult to model them
(at least for the longitudinal motion), and to use them in a simulation to produce your statement.