ploughman67
Thanks
What would happen in your scenario to the speedbrakes and thrust setting when the selected altitude is reached and the pilots already unconscious ?
I see the main problem with this hypotheses that only transponder and acars comm equipment would have to be knocked out but all other vital electronics still working. On the other hand what happened on MH370 surely wasn't an everyday event.
BTW:It doesn't really matter but as far as I understand the 29.5 k feet was derived from that unidentified primary radar contact. Precision of that height would depend very much on angular resolution of the primary radar, so I guess it is just a best estimate give or take some 1000? feet.