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The A32NX & A380X Project are community driven open source projects to create free Airbus aircraft in Microsoft Flight Simulator that are as close to reality as possible.
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EFOB , FULEPRED values mismatch #4688

Closed Parshva8888 closed 1 year ago

Parshva8888 commented 3 years ago

Aircraft Version

Development

Build info

{
  "built": "2021-05-01T22:21:52+00:00",
  "ref": "master",
  "sha": "b63c33db9b402dd4188cdf341e224eeaa71d6a57",
  "actor": "MisterChocker",
  "event_name": "manual"
}

Describe the bug

Screenshot (294) Screenshot (295) Screenshot (296)

EFOB and FUELPRED page mismatch

Expected behavior

Same values on both pages

Steps to reproduce

while performing a couple of flights

References (optional)

No response

Additional info (optional)

No response

Discord Username (optional)

Parshva8888#1339

erso44 commented 3 years ago

I will investigate this issue.

erso44 commented 3 years ago

I do not understand the issue and just to be clear how the systems are working on the FUELPRED side: The FOB value on the EWSD (Engine warning and system display) is the current loaded fuel. The FOB on the MCDU on Page FUELRPED is how much fuel is really needed for the whole flight. The first line on FUELPRED is how much fuel will be left when airriving at destination X. The second line is the same just for alternate destination Y.

In your picture I can see that you have curently 8660 KG of fuel. When you arrive at VIDP you will have 800 KG fuel. At OPLA the same amount of fuel. For your flight you need 8000 KG of fuel.

What is the issue ?

My reference: http://www.a320dp.com/A320_DP/nav-flight-management/sys-14.10.0.html

erso44 commented 3 years ago

I need to correct this ticket. The thread creater means that destination FOB on F-PLN is different to destination FOB on FUELPRED. There is no issue with the values.

image image

This ticket can be closed.

Parshva8888 commented 3 years ago

the issue is that the efob value often goes into -ve and when I open fuel pred the efob then updates to what the fuel pred value is

On Tue, Jun 15, 2021 at 1:48 PM Ersin Karakilic @.***> wrote:

I do not understand the issue of the issue creator and Just to be clear how the systems are working on the FUELPRED side: The FOB value on the EWSD (Engine warning and system display) is the current loaded fuel. The FOB on the MCDU on Page FUELRPED is how much fuel is really needed for the whole flight. The first line on FUELPRED is how much fuel will be left when airriving at destination X. The second line is the same just for alternate destination Y.

In your picture I can see that you have curently 8660 KG of fuel. When you arrive at VIDP you will have 800 KG fuel. At OPLA the same amount of fuel. For your flight you need 8000 KG of fuel.

What is the issue ?

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Parshva8888 commented 3 years ago

well my video states otherwise

On Tue, Jun 15, 2021 at 5:30 PM Ersin Karakilic @.***> wrote:

Did not make any changes but EFOB values are the same. [image: image] https://user-images.githubusercontent.com/39134287/122048675-e1872c00-cde1-11eb-9f23-78c9a968b0e4.png [image: image] https://user-images.githubusercontent.com/39134287/122048696-e6e47680-cde1-11eb-900c-b0d861820534.png

This ticket can be closed.

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erso44 commented 3 years ago

Sry, I don't understand. Maybe someone else can work here if the issue still exists.

Parshva8888 commented 3 years ago

check out the video I sent you Look at the initial EFOB in FPLAN then see me go to fuel pred see how there is a disparity in values then when I go back to the EFOB it changes back to what it was in FUEL PRED which it should have been from the start

On Tue, Jun 15, 2021 at 5:58 PM Ersin Karakilic @.***> wrote:

Sry, I don't understand. Maybe someone else can work here if the issue still exists.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/flybywiresim/a32nx/issues/4688#issuecomment-861456243, or unsubscribe https://github.com/notifications/unsubscribe-auth/AT5MV3VLMJQ2FT3EPJ35YS3TS5BQHANCNFSM437O5DNA .

moonfog7 commented 3 years ago

I can confirm that. EFOB for destination on FPL and FUEL PRED differ. If you click on FUEL PRED they are in sync for a moment and after a while these values diverge again.

tracernz commented 3 years ago

The fuel prediction is not continuously updated (this also affects the PERF APPR page, which is why it's on my "too look at" list). That's listed as a TODO in the code... At the moment I don't think it's accurate for the new engine model either, but not sure.