Turbo - No Fuel Flow
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@Black-Square I have the same issue, when priming the fuel flow indicator does not move at all but I can see the fuel entering through the tablet engine page. Verified this on the TC version.
@Voxen Did you tap on the glass? I was having the same "issue", until I decided to tap on the glass. Then it worked for me. Must be an old gauge to stick so much lol.
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@Voxen Interesting. Did you have the throttle full open and mixture full rich?
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Yes, both. I flew the plane multiple times and I never seen the needle moving during priming.
@Voxen Send a video, if you could.
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I can not upload video here but I can send the iCloud link to it:
https://share.icloud.com/photos/0d6w3fBH8uKJ_2sw9iQq8YlaQ@Voxen Thanks for taking the trouble to upload that. I know you said you tapped on the glass before, but unfortunately, not in the video. The variable that drives the actual fuel into the cylinders is literally duplicated in its last step to drive the gauge, so it's very difficult for me to believe that there could be an issue between that last step and the gauge itself.
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I'm thinking this may be temperature related. As I noted earlier, I'd seen the fuel flow gauge begin to respond with longer priming times on the TC. However on my last few flights it has never moved. The difference is the last few flights have been from airports with extremely high (>30c) temps.
However, even with the hot temps, the engine still starts just as expected with no issues.
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@Zacke said in Turbo - No Fuel Flow:
The EDM shows the fuel flow while priming
Can someone read what the fuel flow is while priming, or what the value of
L:BKSQ_FuelFlow_1, GALLONS PER HOURis? -
In SPAD.Next data inspection, BKSQ_FuelFlow_1 is not updated at all (value is always 0 and never changes), while priming or when engine is started and pushed up to 20mp.
GALLONS PER HOUR, I don't find this variable at all.
Also I noted that once engine is running, the FF needle only start to move around 18mp, not below.
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I did another test and found something interesting.
This time, the fuel flow indication didn't increase again, even after tapping the gauge. The EDM showed that fuel flow was increasing normally, so the engine itself was receiving fuel correctly.
Since I had previously completed a flight where the gauge worked as expected, I tried to figure out what was causing the needle to stick. It seems to start sticking at around 16°C. By 20°C, the needle no longer moves upward at all, even if I tap on the gauge. -
Hi, everyone. I looked into this more today, and found the obvious: The fuel flow gauge is highly non-linear at the very bottom of its scale. Since these real instruments are full of real mechanical eccentricities, I've just added a little piece of "cheater" code to help boost the fuel flow indication just enough to read on the scale. Hopefully that should help eliminate any confusion.
