Version: 1.6.34.0
Frequency: Consistently
Severity: High
(Low - quality of life, workflow optimization, rare enough to not impact production, etc…
High - critical but workarounds are available, important feature not working as expected, frequent enough to impact production
Blocker - prevents from working on the project, prevents from releasing the product)
Marketplace package name: N/A
Context: In flight
Similar MSFS 2020 issue: N/A
Bug description: See Same fuel system version – different results between FS2020 and 2024 - [MSFS 2024] Questions & Community Discussions / Aircraft - MSFS DevSupport. In our A380X airplane, using the same version of the fuel system (version 4) produces different results for fuel flow through junctions.
Repro steps: 1. Start a flight (free flight) on the runway with FS2020 using the A380X dev version.
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Using the airplane’s EFB, load between 50,000 and 100,000 kg of fuel.
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Using the Instrument – pedestal upper view, select the “FUEL” pushbutton so that it lights up. Select the Instrument – ECAM SD view. Note that the 4 feed engine feed tanks will have symmetrical fuel loads between tanks 1 and 4 and between tanks 2 and 3. (Depending on the fuel load, 1 and 4 may have different amounts from 2 and 3.)
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Take off (ignoring any ECAM warnings for not having takeoff speeds inserted). Note that shortly after takeoff, fuel begins transferring from 2 fuel tanks (the inner fuel tanks) into the 4 engine feed tanks. Note that over time, the fuel quantity for tanks 2 and 3 remain equal, as do tanks 1 and 4 (retaining the same difference between 1/4 and 2/3 if there was a difference at the start).
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Repeat these steps using FS2024 and note that over time, the fuel quantity for tanks 2 and 3 remain equal, but tanks 1 and 4 do not, with tank 1 receiving much more fuel than tank 1.
You can download and install the A380X using our installer, available here: FlyByWire Simulations
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