Sorry for the silly question...but I'm a bit lost and confused about the Flight Director system of this great aircraft.
Expert will be laughing but, eveen after viewed the video tutorial I'm not sure to understand exactly the purpose of the two switches...I mean, in Ian's video I see Auto Trhust working as expected even if F/D is not switched on...same for autopilot A and B...they works in all different modes without F/D switches moved to on.
So, could you please explain why I need to switch on Flight Director switches?
Thanks a lot for any feedback