Help needed: Reverse Thrust (Idle Reverse only) with FlightSimPM 737/777 TQ via FSUIPC7

[Nilsooo]

Hi,

I’m using the FlightSimPM throttle quadrant (737/777) with MSFS 2024 and FSUIPC7 (v7.5.4).
My problem: when I pull the reverse levers, the throttles immediately go to full reverse.
What I want: when I pull the levers, they should stay at idle reverse

Can someone explain how to set this up correctly in FSUIPC7?

[John Dowson]

How have you configured the reversers? Please show me / attach your FSUIPC7.ini file so that I can see your assignments.

Do the reverse levers use an axis or do they trigger buttons?

[Nilsooo]

I have reset all assignments for now. My reverse levers are buttons, not axes – when I pull them, they simply trigger a button press.

Here are the throttle quadrants I am using, so you can see the hardware:

• https://www.flightsimpm.com/web-store/737-Throttle-Quadrant-v2-5-p33600129

• https://www.flightsimpm.com/web-store/Boeing-777-Throttle-V2-p76915817

Do you want me to attach my FSUIPC7.ini (with default/reset state) already, or should I first make a basic assignment attempt so you can see what I am doing wrong?

[John Dowson]

The hardware doesn't matter - it is just a collection of buttons and axes as far as FSUIPC is concerned.
You would normally just assign the reverse lever button to a Throttle Dec control, so that when the throttle is in idle and you pull the reverse lever, the decrement should switch it to idle reverse. However, this could depend on the aircraft = which aircraft are you using?

On 9/26/2025 at 9:44 PM, Nilsooo said:

Do you want me to attach my FSUIPC7.ini (with default/reset state) already, or should I first make a basic assignment attempt so you can see what I am doing wrong?

No point attaching it until you have the assignments. Try assigning again and if you still have issues, show me your ini and log files, the latter with logging for Events, Buttons & Keys and Axes Controls activated.

[Nilsooo]

Here are the requested files:

• my current FSUIPC7.ini

• a shortened log (ReverserTest.log) showing only the part where I tested the reverse levers

Aircraft used: PMDG 777
Hardware: FlightSimPM throttle quadrant (reverse levers are button-based, not axes).

When I pull either reverse lever, the engines go directly into full reverse. What I want is: pulling the reverse levers should give idle reverse only, and then increase reverse thrust only if I advance the main throttles forward.

 

FSUIPC7.ini ReverserTest.log.txt

[John Dowson]

20 hours ago, Nilsooo said:

When I pull either reverse lever, the engines go directly into full reverse.

This is because you have assigned the reverser button to send Throttle Decr on repeat, so it keeps decrementing the throttle until you go to max reverse. Change this to not repeat, and it will go to idle reverse. But you will then need to assign something else to throttle decr to increase the reverse speed.

20 hours ago, Nilsooo said:

What I want is: pulling the reverse levers should give idle reverse only, and then increase reverse thrust only if I advance the main throttles forward.

You can't do this with the Throttle Decr, as any further movement on the assigned throttle axis will still apply forward thrust. You need to use the Throttle Reverse Thrust Toggle control to toggle this behavior. However, this is currently only implemented for all throttles, not individual throttle controls.

I will look into allow this for individual throttle/reverser controls, but this may take a while. For now, you can just assign one reverser to Throttle Reverse Thrust Toggle both on press and on release (and with no repeats). If you do this, when you use that reverser lever, it will set the reverse thrust mode for both engines, and the throttle control for each engine will increase the reverse on that engine, and when you move the reverse lever back, it will toggle back to normal thrust mode.

I will look into allowing the same behavior for the individual throttle1/2/3/4 reverse thrust controls.

John

[John Dowson]

I have implemented separate reverser for throttle1 and throttle 2 in the attached version.

With this version, assign your reverser buttons to TOGGLE THROTTLE1 REVERSE THRUST and TOGGLE THROTTLE2 REVERSE THRUST, both on press and release, and with no repeats.

When you activate your reverse lever for a particular engine, it will then toggle reverse thrust mode for that engine only, and the throttle for that engine will increase the reverse thrust. When you move the reverser back, this will toggle reverse thrust for that engine again, disabling the reverse thrust.

Let me know how it goes.

John

FSUIPC7.exe

[John Dowson]

In the attached, I have also enabled the Set Throttle1/2/3/4 Reverse Thrust On/Off controls to also allow the reversers to be used.
In this version, you can also set your reverser button to Set Throttle1 Reverse Thrust On for the press and Set Throttle1 Reverse Thrust Off for the release, and also for reverser 2 using the matching Throttle2 controls.

John

FSUIPC7.exe

[Nilsooo]

Thanks for providing the two test executables. Unfortunately:

• The first file I couldn’t download because my antivirus flagged it as infected.

• The second file I could run, but it still puts the throttles straight into full reverse when I use the reverse lever.

• Also, with that second version, I cannot edit the button assignment in the “Buttons & Switches” control anymore.

So at the moment, I cannot get idle reverse working with either file.

[John Dowson]

9 hours ago, Nilsooo said:

• The first file I couldn’t download because my antivirus flagged it as infected.

Strange this occurred with the first file and not the second...but it will be a false positive. This is continually happening with Windows Defender but is usually fixed pretty quickly by a subsequent virus definition update. This occurs with the compressed version - I have attached an uncompressed version below for you to try.

9 hours ago, Nilsooo said:

• The second file I could run, but it still puts the throttles straight into full reverse when I use the reverse lever.

Did you change your assignments, as indicated? If you are using the same assignments, the same thing will happen, as I explained.
Please try again, and if you get the same issue pleaseattach your ini and log files again. But please attach the full log file, not an extract.

9 hours ago, Nilsooo said:

• Also, with that second version, I cannot edit the button assignment in the “Buttons & Switches” control anymore.

If you cannot edit an assignment, this is because you either have multiple assignments to the same button, or you have edit the assignment to add a compound or condition on the assignment. If this occurs again, show me a screenshot together with your FSUIPC7.ini file.

John

FSUIPC7.exe

[John Dowson]

@Nilsooo Could you please report back on this - I would like to understand why this is not working for you as it seems fine here.

John

[Nilsooo]

Hi John,

sorry for the late reply, I was away for the last few days. I have now tested the new exe you provided, and I was able to edit the assignments. The reversers are now working and going into idle reverse as expected.

One question: would it be possible to configure the reversers so that when the levers are engaged, they don’t go exactly to idle reverse but a little above idle? At full idle reverse there is hardly any noticeable effect.

Thanks again for your help!

[Nilsooo]

Just as an additional note: I have also noticed that sometimes only one engine goes into reverse, even though I pull both reverser levers.

[John Dowson]

12 hours ago, Nilsooo said:

One question: would it be possible to configure the reversers so that when the levers are engaged, they don’t go exactly to idle reverse but a little above idle? At full idle reverse there is hardly any noticeable effect.

You could also try sending a Throttle1/2 Decr control after the Set Throttle1/2 Reverse Thrust On or Set Throttle1/2 Reverse Thrust Toggle control on the button press. To send multiple controls, you need to edit the ini (comment out the first assignment, make the second one, then uncomment the first one).

12 hours ago, Nilsooo said:

Just as an additional note: I have also noticed that sometimes only one engine goes into reverse, even though I pull both reverser levers.

No idea why that would be. Is the button being triggered and the control being sent? Logging would tell you this (Buttons & Keys and Events).

[Nilsooo]

Hi John,

I’ve now configured everything for the 777, and it’s working exactly the way I wanted — the reversers go into a slight reverse power when engaged, and I can control reverse thrust with the main throttles.

Thanks a lot for your help and patience with all the testing and adjustments!

If I run into any further issues, especially when setting up my 737 hardware, I’ll get back to you here.