[Bobby777]

I suppose there's something meaningful in all that *stuff* you posted there ... I cannot see where you explained fully how INS works and why it's immune from spoofing ... if you can explain, please do ... if it's an astro-tracker, well, that's enough explanation for me ...

[Bobby777]

earlier poster said INS was based on detecting Earth's magnetic field ... even my radar detector does that (it has a compass built in) ...

[A Little Bird]

You three seem to be very intent on discussing the spoofing of the INS. Have you taken a look at my posting #78? Spoofed or not, the evidence shows that either the INS was never engaged, or that it was engaged too late to control the airplane.