Thanks a lot!
So to maintain Vprot, FAC's send signals to the other F-CTL (to pitch down....etc) and also directly to FADEC? FAC's will basically do what A/THR does?
I understood your thing. But you say "to maintain Vprot"
When the plane pitches down, it can take speed. So if it is maintaining Vprot, something has to command.
So what is controlling speed at Vprot?
Thanks