Very interesting! We actually have an entire set of instructional videos on the user guide on how to use these functions. This is specifically an ILS auto-land feature that is available on most aircraft in IF, and IRL is used only in extreme whiteout conditions (for the most part).
This is actually just to indicate that you have captured the glide slope (hence GS), but it will still be a green even if you have a speed too fast or slow. A good way to judge speed would be to keep your inclination between -2.5 and 2.5 degrees until the flare, or -5 and 5 degrees if you’re on the extreme side
Did you know you don’t even have to do this? The APPR mode will land for you, although I don’t recommend it as even slight winds can cause some havoc on touchdown.
As a side note, you can also use the ILS approach method without using the APPR mode, but setting your nav source to NAV1 and the sticking to the line on the compass and the glideslope indicator to the left of your altitude marker!
That’s good to know. It’s been over a year since I last used the APPR mode, I prefer to hand fly my approaches, so I’m guessing my memory is a bit off.
Probably because you were going too fast. Remember that your GS will appear green even if you are too fast. Depending on the aircraft and weight, your final approach speed should be between 120 and 150 knots. For instance in the 737 at flaps 30, I would have my final approach speed around 135-145 knots depending on the weight
Wow, this is one of my most favourite parts when flying! Thank you for sharing, Poland_aviation!
Just be sure to switch NAV back to GPS if and after you’ve experience an emergency Go-Around, I always forget that and then wonder why my aircraft path went way off on its own
Select your airport
Go to “NAV” and make sure that source is the same as selected before
Go to autopilot and select “APPR” mode
Continue flight and disable AP at short final
Land “safely…”
Thank you for sharing, Poland_aviation!