Fuel Consumption and Time Compression

Bug Reporting Hub Aircraft & Systems
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1

Its not a big deal - But I noticed something today with Fuel consumption and using time compression. I couldnt figure out why sometimes I would have tons of fuel leftover after a flight and sometimes I was right on the money (using the default A320). Maybe this has already been posted but I couldnt find it anywhere.

It appears to me using time compression does not effect fuel flow (IE Fuel Flow should be increased as well when using time compression). So on a long flight where I use high time compression the fuel flow is the same as if had not use time compression. Explains to me why on my long flights why I end up with so much more fuel left over then when I have shorter flights and dont use much time compression.

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2

What do you mean by time compression? Do you mean increasing the Sim Rate?

3

Yes…I think it used to be called time compression in FSX days but increasing sim rate…

4

im doing a lot of long flight with the Longitude (over 3000nm) and I dont have too much fuel at destination.
seems ok to me.
Maybe its different from plane to plane

5

Hello
I just saw your topic and I have the same problem of consumption that does not decrease during the flight but I do not understand “increase the sim rate”?
Can you explain?thanks

6

Using the keyboard to go to 2x or 4x times…I use it on long flights so I dont have to wait 8 hours to land.

7

ok but what does this have to do with the fact that fuel consumption is not decreasing???

8

Fuel consumption should also be speed up at the same rate as your time compression…if I am using 4x time compression fuel should be used at the same rate - not as if I didn’t have time compression on at all. Again I have no idea if this is legitimate but for me something seems off…If I am taking a short flight where I dont use time compression I have little fuel left over…If I start using time compression I end up with way more fuel then if I did not use at all.

9

well actually there is a problem with the consumption whether I increase the sim rate or not the level does not move.
I have a question about how to get back to the normal sim rate after increasing or decreasing the rate without doing nm/speed calculations.

11

Fuel empty in a few seconds!!! See the video after the description

  • Take-off

  • Show the remaining fuel during climb

  • Set simulation speed to the minimum

  • Start analog clock in order to show the simulation speed

  • Show again the remaining fuel, SET PAUSE ON (around 50 seconds on the video) then switching between cockpit and external view few times

  • Fuel start to rapidly drop, in a few seconds I have no fuel!!!

  • Time on the analog clock seems to be frozen (around 1 minute and 55 seconds on the video)

  • Re-set normal simulation rate speed

  • SET PAUSE OFF

12

ISSUE DESCRIPTION

Description of the issue:
When I increase the sim rate to 2x, 4x, or higher, the fuel consumption doesn’t change and stays the same as it does at 1x. Since this is a long-range aircraft, it would be great if fuel usage scaled properly with higher sim rates, like it does with the default Boeing 787. This would make long flights much smoother when using faster sim rates.
At the moment, I have to set the fuel manually during flight to simulate the increased sim rate, which is far from ideal.

If applicable, which aircraft is experiencing this issue: Airbus A330 (all variants)

[PC Only] Did you remove all your community mods/add-ons? If yes, are you still experiencing the issue?
Not applicable as the issue happens with a default airplane.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?
Every time.

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. Start a flight with any iniBuilds A330.
  2. Take off and climb to the planned cruising altitude.
  3. Increase the simulation rate to 2x, 4x, or higher.
  4. Monitor the fuel usage and compare it to the expected consumption at the current sim rate.

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using, if relevant:

[PC Only] Are you using Developer Mode or have you made any changes to it?
No.

[PC, MSFS 2020 Only] Are you using DX11 or DX12?

[PC Only] What GPU (Graphics Card) do you use? RX 7800 XT

[PC Only] What other relevant PC specs can you share?

MEDIA

Please add a screenshot or video of the issue occurring.

[END OF FIRST USER REPORT]

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13

I seem to be having the opposite issue with 2x - 3x sim rate. I always carry 20% more fuel than needed, but usually end up near empty, or discover halfway through the flight that I won’t make it. Maybe they overcorrected on the new beta?