Originally Posted by
Volume
Does anybody believe in the altitude dip recorded for both flights?
For me this is indicating an issue with the static pressure measurement. I think this dip in altitude 23:21:40 to 23:22 for this flight and at 14:25 on the previous flight is an error in the data, and not the real flight path.
Especially as the curve returns to an expected one after a short time with no remaining offset.
The speed increases significantly with the "altitude dip" which i would call a descent.
After that they climb at a higher rate because they are faster and are reducing speed, trading speed for altitude.
Someone even calculated total energy and graphed that to show that the data are consistent.
But that does not mean that there were no problems with static pressure measurement as the plane has multiple sensors and only the output of one of them is transmitted in the ADS-B data.