Version: 1.7.28.0
Frequency: Consistently
Severity: Low
(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: if applicable
Context: community package, latest fuelsystem version
Similar MSFS 2020 issue: untested
Bug description:
Repro steps:
define a fuelsystem with two lines with vastly different fuelflowat1psi parameters, both connected to the same valve
Attachments:
Hello @ijustwantologin
Can you please do a video or GIF capture of your Fuel System debug while the valve is opening/closing?
In my own tests, the pressure drops everywhere but in the output line and the fuel flow remains constant (disregard the oscillation between 2 values from one frame to the next) until the valve is fully closed:
If we agree this is what we both see, I’ll have this reviewed.
Regards,
Sylvain
some context, line H7260Toleft_tank is the line downstream of the valve and has the lowest defined flow in the entire system, here the flow should decrease as the valve is closing
the second video has line CarbManifoldToH7260 (line upstream to valve) defined to the same flow as H7260Toleft_tank, hence correct flow
in addition, I think I found another issue, the enginedriven pump(1.7psi at idle) is effectively in series with the electric pump(4.5psi), turning it on does not change fuel pressure (pumps in series should add pressure, resulting in 6.2psi in my case), however it has somehow doubled fuel flow
1 Like
Hello @ijustwantologin
Thank you for the additional context.
Could you please follow section 3 of our guidelines and provide us with your flight_model.cfg where the fuel system is defined?
How to report a bug or crash - [MSFS 2024] Bug Reports - MSFS DevSupport
Regards,
Sylvain
