AP MISBEHAVING

Francesco
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AP MISBEHAVING

Post by Francesco » Fri Dec 22, 2023 11:13 pm

Hello guys,
Since yesterday night I noticed that with the A320ceo the AP is completely misbehaving. Never happened before. What happens is that the aircraft goes well until it’s quite close to approach. At this point is stops following the green line of the route, and goes its own way straight to the final approach. Which completely messes up all the things, because you’re at a certain altitude and then suddenly u are supposed to descend in order to have a chance of landing (chance that in the end doesn’t come). Why is this happening. Also, the route that I import from sim turf manually is absolutely corrects, but close to the final, on the route display weird turns appears, and they are totally avoidable and shouldn’t be present…

https://share.icloud.com/photos/0d5blHK ... 8UI7xZR2EQ ➡️ that’s another proof from a guy from facebook

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RicardoLVFR
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Re: AP MISBEHAVING

Post by RicardoLVFR » Fri Dec 29, 2023 1:28 am

Hi, for now the only way approach works is ILS approaches, but you can't use them to autoland all the way to touch down.

With the avionics update RNAV approaches and others will work much better.
Ricardo Morillo
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Pauld
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Re: AP MISBEHAVING

Post by Pauld » Sat Dec 30, 2023 7:52 pm

For the past week or two the mangenta diamond will not come down ready for approach. I'm doing exactly the same as I've always done with a ils landing. The horizontal diamond comes across and I can loc it but then the vertical diamond doesn't budge.

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7heAngryVe7eran
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Re: AP MISBEHAVING

Post by 7heAngryVe7eran » Fri Jan 05, 2024 12:43 pm

Francesco wrote:
Fri Dec 22, 2023 11:13 pm
Hello guys,
Since yesterday night I noticed that with the A320ceo the AP is completely misbehaving. Never happened before. What happens is that the aircraft goes well until it’s quite close to approach. At this point is stops following the green line of the route, and goes its own way straight to the final approach. Which completely messes up all the things, because you’re at a certain altitude and then suddenly u are supposed to descend in order to have a chance of landing (chance that in the end doesn’t come). Why is this happening. Also, the route that I import from sim turf manually is absolutely corrects, but close to the final, on the route display weird turns appears, and they are totally avoidable and shouldn’t be present…

https://share.icloud.com/photos/0d5blHK ... 8UI7xZR2EQ ➡️ that’s another proof from a guy from facebook
Hey Francesco, I would like to help you.

Would you send me your flight plan, so that I can fly it to see what's happening with the aircraft?

Thank you

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7heAngryVe7eran
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Re: AP MISBEHAVING

Post by 7heAngryVe7eran » Fri Jan 05, 2024 12:45 pm

Pauld wrote:
Sat Dec 30, 2023 7:52 pm
For the past week or two the mangenta diamond will not come down ready for approach. I'm doing exactly the same as I've always done with a ils landing. The horizontal diamond comes across and I can loc it but then the vertical diamond doesn't budge.
Hello Pauld. I would like to take a look.

Can you send me your flight plan?

Pauld
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Re: AP MISBEHAVING

Post by Pauld » Sun Jan 14, 2024 3:52 pm

Sorry about the late reply. It happens on every flight plan on all four planes. They lock ok but the mangenta diamond doesn't make its way down for approach. It's not so bad most times as visibility is fine for a manual landing but yesterday when approaching San Francisco in fog was a job and half 😁

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7heAngryVe7eran
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Re: AP MISBEHAVING

Post by 7heAngryVe7eran » Mon Jan 15, 2024 5:23 pm

Pauld wrote:
Sun Jan 14, 2024 3:52 pm
Sorry about the late reply. It happens on every flight plan on all four planes. They lock ok but the mangenta diamond doesn't make its way down for approach. It's not so bad most times as visibility is fine for a manual landing but yesterday when approaching San Francisco in fog was a job and half 😁
No worries. Thank you for the explanation of the problem. I'll do a flight today and report back. Meanwhile...

Did you follow the procedures below?

1. the ILS's Frequency is input in the RAD/NAV menu on the MCDU

2. You are at the correct altitude to intercept the ILS localizer and glideslope (you'll need an approach chart for this, the above video goes over that somewhat)

3. You are flying a heading that will allow you to intercept the localizer while below the glideslope (GS). That is, you want to be far enough away so that you'll intercept the localizer before you need to start your descent.

4. Enable "APPR" mode using the button on your glare shield once you're heading towards the localizer intercept point. The AP will automatically arm and engage the localizer and glideslope at the appropriate points.

5. Once at (or before) 'minimums' (usually 200 feet radar altitude) you can disengage the autopilot and fly the remainder of the approach/landing.

If so, the problem may lie in how Asobo programmed their avionics. These aircraft use those same avionics. To my knowledge there is an update planned, but unfortunately I cannot tell you when that will be.

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7heAngryVe7eran
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Re: AP MISBEHAVING

Post by 7heAngryVe7eran » Mon Jan 15, 2024 10:17 pm

Pauld wrote:
Sun Jan 14, 2024 3:52 pm
Sorry about the late reply. It happens on every flight plan on all four planes. They lock ok but the magenta diamond doesn't make its way down for approach. It's not so bad most times as visibility is fine for a manual landing but yesterday when approaching San Francisco in fog was a job and half 😁
I just completed a flight from RPLL Manila, Philippines to RCTP Taipei, Taiwan. Nevermind that this wasn't my best descent and landing. I was a bit fast throughout the descent and forgot to enable my autobrakes 8-) .

I was able to see the problem you're having, where the ILS vertical diamond doesn't seem to work correctly.

For now, a workaround would be to follow the correct rwy ILS charts (I use Navigraph) and use Open Descent to adjust vertical speed until you're able to make your decision height. Of course, if you are unable to see the runway due to bad weather, you may be forced to go around or divert.

You can view the video of my landing here. If you skip to 1:53:00, notice that during the landing, I had the same issue. Also, when I enabled AP2, the AP began to increase my vertical speed. I immediately reenabled AP1, and used V/S mode to descend to the runway. The weather was clear enough to see the approach lighting to determine a vertical speed of around -600.

It has been addressed that the Asobo autopilot has a few bugs and doesn't have the ability to auto land. An update is planned to address this and other issues, but as of now I do not have an answer on when it will be released.

Pauld
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Re: AP MISBEHAVING

Post by Pauld » Fri Jan 19, 2024 3:02 pm

Ok great thanks for the update

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7heAngryVe7eran
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Re: AP MISBEHAVING

Post by 7heAngryVe7eran » Fri Jan 19, 2024 10:52 pm

Pauld wrote:
Fri Jan 19, 2024 3:02 pm
Ok great thanks for the update
You're welcome!

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