Graybeard
Ok, Confiture, maybe you have a logical explanation why the GS reported was the exact same 107 kt as the vertical velocity. See post #552
I would also presume it is a coincidence, but ...
why coincidence?
what did you think how BEA create the 3D flight path picture (last 5 min of flight) in the report?
they know surely save the 3D pos of LKP and the 2D pos of the crashplace, and they have truly the acceleration X/Y/Z from the box, and a lot more information with more or less reliability,
they puzzle a line over the two save points and try to put in as much as possible of the information, always checking if it is plausible with the acceleration .....
and if the flightpath ends with 45 deg then the GS is alway equal VS.......
no coincidence
p.s. by the way, how did you realy manege the calculation of the flight path angle if all avionic people use feet in Z direction and miles in X and Y, did you first convert the miles in feet? or use a scaled chart? or exist a calculator with the tangentfunction (feet/miles)