So I’m trying to fly an Airbus 320neo and I’ve watched several “autoland” tutorials but I simply can’t manage to land with the ILS. The autopilot just doesn’t do what it’s supposed to and I don’t understand what I’m doing wrong.
First things first: I choose my departure and arrival, and make a proper flight plan (IFR, high or low altitude airline), and I choose an approach at the destination airport. For example today I tried to fly from Madeira to Gibraltar. Seemingly everything is set properly in the flight plan (purple approach line, etc).
However, after takeoff I notice that when the autopilot is on, it never adheres to the altitudes that are set in the flight plan. I press the “engage managed altitude” button but the AP doesn’t do it. I end up having to always manually manage the altitude, and press “engage selected altitude” every time the ATC tells me to change. I don’t understand why. The AP manages the heading and speed but never the altitude. I have to add that the flight plan in the on-board computer seemingly lacks a lot of data. Altitude is missing from most waypoints, and it’s only set at a handful. I also don’t understand how it works and I couldn’t manually program the whole thing. It’s set as it is calculated on the world map, I don’t touch it.
Now, what I don’t understand even more is how I should set up the AP to land. When should I turn on the LS and Approach modes? When I turn on the LS data, the “diamonds” never appear on the display. Even more importantly, the ATC doesn’t tell me where should I descend. The AP just flies the planned route but doesn’t descend so I end up being too high and can’t land.
When exactly should I turn on the LS and Approach modes on the AP? There is absolutely no information on how to do this. Also, should I turn on the LOC mode, too? What is Constraint mode? Is it needed for the autoland function? I don’t understand any of this.
So my problem is that the AP can steer the plane in the right direction, but it doesn’t change altitude on its own and can’t properly approach the airport. I read about it and watched videos but I still don’t know in what order and when exactly should I press all these buttons.
How can I make the AP to change altitudes properly, is it possible at all? And what’s the common way to make it approach an airport and land?
Any help is appreciated.