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Rolfspan

TBM930 throttle acting up in cruise/AP

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While flying the TBM lately, the throttle jumps all over the place from high speed to low and back without input from pilot. It seems to me that I had that problem some time ago but I forgot what’s the solution for that fix was. Any help will be appreciated.

Thanks, Rolf

 


Computer - Windows 10 Pro 64bit -  I7 7700K CPU @4.20GHz - GPU GTX 1080- - 32.0 GB RAM - P3D v4.1

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Hi. Yes I am having the same issue now and a while back. I think it was related to FSUIPC, but then saying that I don't use FSUIPC at the moment.

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Odd as this happened to me too but in the FBW A320, it was only for a minute or two and on that one flight.  I was in a climb.


CPU: Core i5-6600K 4 core (3.5GHz) - overclock to 4.3 | RAM: (1066 MHz) 16GB
MOBO: ASUS Z170 Pro |  GeForce GTX 1070 8GB | MONITOR: 2560 X 1440 2K

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Same here .. It only moves visually and no effect on actual throttle setting. I just ignore it. TQ is Saitek. 


Intel i7 - 6850K @ 3.60 GHz   |   Palit JetStream RTX 2070 Super  |  32 GB RAM  |  Saitek peripherals

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3 hours ago, Rolfspan said:

While flying the TBM lately, the throttle jumps all over the place from high speed to low and back without input from pilot.

I have seen this also, and in my case it was the MSFS bug that sets controllers to 50% after you use ESC to leave and reenter the sim.

The RPM lever was set to 50%, and caused this behavior.

Once I moved the lever a bit on my yoke/quadrant, it went back to the commanded 100% setting and the visual issues stopped.

Edited by Bert Pieke
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Bert

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Ok I have just cured mine. I noticed in the Control settings, I had a mapping for the Propeller, which is not used in the TBM, so I cleared that mapping and now the throttle works perfectly. I am just hoping these settings are different for each aircraft. As I do use the Propeller Axis in other planes

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I had the same issue in TBM. It was caused by Saitek throttle quadrant. I used the same profile as for other single engine aircraft (which also have mixture and props mapped) and I guess the old TQ sometimes produced a signal even with the levers fully down which resulted in erratic movement of the throttle lever. I guess if I set some deadzones the problem would be also solved - or just make a new profile for the TBM without props and mixture mapped.

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Excellent ideas. I will try them and report back. 

Thanks all. Rolf


Computer - Windows 10 Pro 64bit -  I7 7700K CPU @4.20GHz - GPU GTX 1080- - 32.0 GB RAM - P3D v4.1

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8 hours ago, Tomaz Drnovsek said:

I guess the old TQ sometimes produced a signal even with the levers fully down

Also look at the ESC bug, which sets your lever to 50% without you doing anything..

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Bert

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8 hours ago, Bert Pieke said:

Also look at the ESC bug, which sets your lever to 50% without you doing anything..

Yeah, I know about that one. On rare occasions they said... it happens to me every time I press ESC. 🙃 But what's happening with throttle lever on TBM is different - it moves quickly from 100% to 0% repeatedly.

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8 hours ago, Tomaz Drnovsek said:

Yeah, I know about that one. On rare occasions they said... it happens to me every time I press ESC. 🙃 But what's happening with throttle lever on TBM is different - it moves quickly from 100% to 0% repeatedly.

I see that too, but the (invisible) rpm lever is the cause (at least in my cockpit)..

Edited by Bert Pieke

Bert

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