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turbine duke fuel flow

Scheduled Pinned Locked Moved Piston & Turbine Dukes
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  • F Offline
    F Offline
    fosl
    wrote on last edited by
    #1

    Several flights now, and both engine fuel flows always indicate 00.0. No failures. Any suggestions?

    Thanks

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #2

    Could you provide a screenshot or video so I can take a look at the situation? That's always extremely helpful. Thank you.

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  • F Offline
    F Offline
    fosl
    wrote on last edited by
    #3

    duke ff.PNG

    In the screenshot, observe the FF GPH for both engines. It is always 00.0.

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #4

    A little more context in the screenshot would have been preferred, but in this case, that does look very strange. You said no failures, but did accidently click on the fuel flow circuit breaker? Probably not, if you said it's been multiple flights, now.

    This is a very strange one. Do you know how to use developer mode to look for L:Vars, or perhaps SPAD, or any software that can access L:Vars? I could be curious what the value of "BKSQ_DUKE_FuelFlow_1" is. I'm guessing zero from this screenshot, which means that the following other items must be in order to show fuel flow (I'm guessing they are, since your engines are running happily, but this is the troubleshooting process:

    (A:ENG FUEL FLOW GPH:1, GALLONS PER HOUR) must have a value.
    (A:FUEL TANK SELECTOR:1, enum) must be greater than zero.
    The selected fuel tank must have more than 2.5 gallons.
    The fuel flow sensor circuit must be energized.

    Very strange, indeed. Let me know if you can figured anything out. If not, I will continue to think, but I might pass you off to to technical support since I believe they can screenshare to try some things that I can't do over text.

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  • F Offline
    F Offline
    fosl
    wrote on last edited by
    #5

    FF indicators have been returned to service! Must have been a binding conflict. Im using the Thrustmaster Airbus thrust levers which is working out well. However, the Eng master switches were bound by default to several fuel related functions. Works great in the fenix, not so great with the duke. Cleared all bindings and assigned the eng master switches to only the condition levers. Now the FF indicators are working. Thanks for your help. Fantastic aircraft you have released!

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #6

    Excellent! Thank you for taking the time to let me know and posting here so that others might find the solution too. Happy flying!

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  • L Offline
    L Offline
    leroylockwood
    wrote on last edited by leroylockwood
    #7

    I have a very similar issue which I cannot resolve. In both Turbine Duke and Piston Duke, fuel flow indicates ZERO when starting from COLD and DARK. However, the indication is normal when spawing on the runway with engines running. Circuit breakers are all in.

    SIMCONNECT FUEL FLOW PPH and GPH are available but LVAR:BKSQ_DUKE_FuelFlow_1 and _2 return "0" when started from COLD and DARK.

    Appreciate any input you may have.

    Thank you!

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #8

    I've been trying to reproduce this for several days whenever I load the Dukes. Unfortunately, I haven't had luck. Do the fuel flow indicators in the cockpit also read zero, or it just the LVar that's stuck at zero?

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  • R Offline
    R Offline
    Romulus
    wrote on last edited by
    #9

    I was experiencing the same issue, I am using SPAD. I discovered this:

    If I used SIMCONNECT:SET_FUEL_VALVE_ENG1 the fuel cutoff lever would move and engine would start etc, but no operating FF gauge.

    If I used B:FUEL_1_CONDITION_LEVER event the FF gauge and everything else works perfectly.

    I hope this helps!

    Black SquareB 1 Reply Last reply
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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    replied to Romulus on last edited by
    #10

    @Romulus Very interesting!! Thank you for sharing. I can envision how that could happen in my code. That is also relevant to a note I have for another unannounced project that I'm currently working on. I will definitely be exploring that shortly, and I will implement a solution for the Duke, assuming it doesn't significantly disrupt current hardware and home cockpit builders' setups.

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