Default A320 Constraints Button

When flying the default A320 how do I read the constraints on the route. For example, departing LHR my first constraint is D1 and 1700 with a line underneath in magenta. The next is LON11 3000 with a line underneath. Further along the route there is LON101H 6000 in magenta with no line underneath it.

I’m a little confused as to what I need to do with these constraints. Do I need to be at D1 and no higher than 1700ft or do I need to be a minimum of 1700 at D1?

Also, why do some have lines underneath and some don’t?

A line underneath can be looked at as a floor. A line over is a ceiling. Lines above and below indicate an exact altitude requirement.

Thanks, that makes sense, what about no line?

“Recommended” I believe.

Thank you very much. That’s very helpful.

Those constraints are respected by the aircraft in managed mode, BTW. When descending, anyway; I’ve never noticed what happens on climb-out.

The default A320 on climb out gains altitude like a rocket. Not sure what’s wrong with it

It’s been like that since a few SUs ago, it goes like a Saturn V. I’ve read somewhere here there’s a tweak for it, but I’ve never bothered; I quite like it :smile:

BTW, this might be of interest:

That’s exactly what I do in descent but stars aren’t always correct I rarely use them anymore. Sometimes the plane won’t follow them and decides to take a shortcut and leaves me to high. I’ll then takeover myself and follow it. I usually won’t add an approach until I get it from atc. Even then I check the atis to check for wind speeds. And I don’t add vias either as it will usually be the correct via ATC gives you anyway. If you don’t want the approach request another. Always remember you’re the pilot.

Have you tested if the stock A20N respects the constraints? Because in my experience, A20N FBW does but stock A20N does not care about constraints, at least on departure (as said below I have been flying approaches manually, AP off).

Let me know because I haven’t been able to know if I’m doing something wrong (I’m using the exact same steps on both aircraft).

Best and thanks in advance!
Seb

I find that it respects constraints on descents only.

Thanks for the answer! Seems my previous post was flagged so I’m waiting to edit it (TBH don’t know what could have been bad in it).

Need to try constraints on descents and approach. I have been practicing doing them manually lately so AP off, but I concur, it doesn’t follow constraints on departure, just climbs like a rocket as said above.

You probably already know this but make sure you’re in managed mode on descent. I have no idea why you were flagged either.

I was talking about the stock plane; I’m not ready for the FBW yet.

Check my msg again, I asked for the stock A20N, not the FBW. FBW does follow constraints :slight_smile:

If that was for me (it’s not clear), then you read mine again. I’ve never flown the FBW; I don’t even own it. I was talking about the stock plane.

What… I’m going to quote myself and add bold to emphasize the parts that indicates I’m asking about the stock A20N

“Have you tested if the stock A20N respects the constraints? Because in my experience, A20N FBW does but stock A20N does not care about constraints, at least on departure (as said below I have been flying approaches manually, AP off).”

I don’t know why you think I’m asking about the FBW, it was just a comment I made comparing stock vs FBW.

Best!
Seb

Yes already!!! I was talking about the stock plane!!!

If that still hasn’t sunk in, I give up. I can explain it to you, but I can’t understand it for you.

And it does also on departure? Because I’m having the same experience as @timinorlando, at least on departure it doesn’t follow them at all.

PS calm down, so far you had only said “i haven’t tested the FBW” which wasn’t my question at all, I specifically asked if for you the stock A20N did follow constraints on all flight situations.

I swear to god it’s like being on YouTube here sometimes, some people just want to argue no matter what.

You ask if I’ve tested the stock A320.

I’ve said I was already talking about the stock A320.

You ask if it respects constraints on climb-out.

I’d already said “I’ve never noticed what happens on climb-out.”

You repeat the questions.

I repeat the answers.

Yet still you try to make an issue. I know a troll when I see one; if I say any more I’m going to get in trouble, so in deference to the community any further replies from you will remain unanswered.