Originally Posted by airtren #342
1. During a large part of the climb - marked area 1 (blue rectangular area)
there is a continuation of a strong Normal Accelaration variation - perhaps the strongest in the graph, indicating the strong (est) Turbulence - that started during Normal Law.
2. The Elevators (resultant) move during this area (1) seems (if any) to be ND (the graph is slightly above -3 degree line). This seems to be in spite of the Pitch Commands mostly NU. - surprise Elevators don't move NU with Pitch Command NU Is this a consequence of a strong Updraft?
It coincides with Normal Acceleration above 1g - confirms A33Zab observation.
The increase of normal acceleration between 02:10:07 and 02:10:15 is strongly correlated with the increase in pitch attitude in the same period. The increase in pitch was in response to elevator movement (quite sensitive at M=0.8) which in turn corresponded to sidestick command - see BEA#3 top of page 41 (english version). [Sentence DELETED. Reason: The graph on page 42 does show the elevator angle]
In an encounter with an updraft the airplane would also experience an increase of normal acceleration, but it would not pitch up in this manner.