Time History Data
Thanks, HC.
I was referring to the 4/rev excitation, not the 1/rev, but as you wrote, perhaps the sample rate didn't support that range ( I didn't work it out, but am sure its 16-21 Hz or so ).
Is it possible that the AFCS/Autopilot Computer has some memory built in? If so, I'd bet that it would have the frequency range to assist.
Think they didn't put up the directional control trace because there is none? Most surprising if true.
All in all, one would hope that there is a lot more applicable data to review than that published in the single figure. I have to believe that the pilots office at EC is into this 100% and can assist. Just guessing, but would not be surprised if they took the VRS sedative with some skepticism as well.