Can anyone help me with the C172 trimwheel problem, and lots of other aircraft too please? I am using a relatively new and high spec. PC and internet ethernet connection of 400 MB+. I have read and tried most of the suggestions in this forum but if the answer may lie in 3rd. party items, then please can someone give me their opinions?
I’ve looked at Streamdeck, the Logiteck Multi panel, the DesktopAviator’s Digital Trim Wheel Panel, the Authentikit Tuning app. and various Arduino options. There’s also FSUIPC although I have no idea what this is or does.
I’ve seen a fair few comments here of people reaching the point of giving up with MSFS since 2021 and I agree with them that it is difficult to fly without a reasonable trim adjustment as opposed to a wheel that with just a touch (literally) the aircraft goes into a nose dive or sets off for outer space.
I would really appreciate any advice and/or comment on the above and anything else that might work.
Here’s hoping and thank you in advance.
As for “analog” trim wheel you can check if it’s possible to adjust its sensitivity via controls options (it might be not).
FSUIPC is basically the same controls options, but with more precise settings, although I can’t confirm whether it supports trim wheel periphery.
I personally use buttons as they provide the smallest step possible when trimming; still the whole process in unnecessary difficult in the sim (while it’s literally meant to ease things up). There’s a scripot for auto-trim and FSUIPC I’m planning to test, but as for now…
I have buttons assigned on my joystick and my yoke. One (on each) to move the trim one way, another to move it the other way. Works brilliantly
I do have a plan to add a hardware trim wheel, but I’ve not built it yet so I’m not sure how I’ll connect it.
I use the trim wheel on my Honeycomb Bravo. It just causes button presses (lots of them per rotation) as you rotate the wheel (one button when rotating one direction and another button when rotating the other direction). I have my Spad.next profile increment/decrement the trim by a small amount with each button press. I can make the trim more or less sensitive by adjusting (in the Spad.next profile) how much it changes the trim with each button click. It’s a lot more realistic than having the trim on buttons on my yoke (which is what I had before I got the Bravo quadrant).
You can also change the increment value in the aircraft.cfg file but probably on the default 172 that file will be protected / locked.
In 3rd party and/or Deluxe/Premium edition aircraft you should be able to edit it though. Look for a line called ELEVATOR_TRIM_EFFECTIVENESS (something like that, from memory) and lower the value (say it’s 1.0, make it 0.6 or even lower if you want it even slower per ‘click’).
Thank you LKFJP, I have already looked at some Spad videos. It seems this might be the answer, cheers.
Thank you Baracus250, I’ll see if I can find that bit of code.
I use the Logitech multi panel’s trim wheel and some Spad code, works well after a lot of experimenting. Spad can be your friend, after the learning curve … !
Just to answer this (hopefully) quickly and mostly cleany but FSUIPC is an app that allows the sim to communicate with third party applications in a way that allows you to manipulate the virtual cockpit in a desired way through physical interaction. This can be through the logitech panels or a wholly custom built 3d printed simpit.
In a sense, it does nothing more than output sim data in a readable form for other applications. MSFS has Simconnect built in, which pretty much does the same thing as the free FSUIPC version. SPAD.next lets you use either to configure your panels.
The .cfg file (for the Premium / Deluxe planes ) got unlocked some months ago. - so you should be able to change them (ideally with a Mod, so the changes will survive a Sim Update)
Yeah, that’s what I said in the 2nd para 
I am using the Flight Velocity Trim Wheel Pro. It has an adjusting knob that allows you to adjust the sensitivity of the trim while in use. It has one quirk; when you start windows it defaults to full down trim. Before flying you must move it to the center position in the control sensitivity setting or in windows calibrate.
Thank you lexmirnov,
I’ve tried the sensitivity in control options on the TB FV1 but nothing makes any difference. I tried it on the discovery flight to the pyramids in Egypt this afternoon. This is in a C152 and whatever trim you try, nose up or down, the plane nose dives and crashes - quickly, so quickly there isn’t even time for the engine revs to pick up to pull the plane up !
Thank you though for taking the time to try.
Hello Baracus250, I’ve tried to find the aircraft.cfg files without success. Could you give me a clue please? I’m on W11 with a standard MSFS. If I can actually find and edit the config as you suggest I can upgrade, at the moment I’m flying the Cessna 172. Thanks.
Hi. You replied to the wrong person there btw, but I’ve looked at this and I made a small mistake. It’s actually the flight_model.cfg file you need.
I found it in Steam version here:
C:\Users"YOURUSERNAME"\AppData\Roaming\Microsoft Flight Simulator\Packages\Official\Steam\Asobo-aircraft-c172sp-classic\SimObjects\Airplanes\Asobo_C172sp_classic
On the MS Store version, that will probably be different but you should still be able to find the Packages\Official folder I think.
Maybe try: C:\Users\username\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\Packages\Official\OneStore
Then pick the plane folder of the one you are flying (e.g. Asobo_C172sp_classic) and open flight_model.cfg using Notepad.
The line inside is elevator_trim_effectiveness = 1.33*
within the [FLIGHT_TUNING] section (quite near the end).
This is looking at the standard Asobo_C172sp_classic, so change that 1.33 to something lower depending how much you want to knock it down. If you want to tweak it you will need to reload the whole sim after any change.
Hi again Baracus250, Thank you again for the response. I found ithe file thanks, although I haven’t started tweaking yet (shopping day). For anyone else looking at the thread, in my version it was as you suggested but after OneStore/ it was Asobo_aircraft-c172sp-as1000\SimObjects/Airplanes/Asobo_c172sp_AS1000/flight_model.cfg. The Asobo_aircraft-c172sp-as1000\ WAS repeated !
It was indeed set as 1.33 so Ill be delving probably tomorrow. Thanks again.
No worries! The AS1000 is the glass cockpit one I think. Classic (my name) is the steam gauge one. I think.
I have the WB-Sim enhancement so that’s all I’ve flown for ages, so not 100% sure but you probably have other folders in those root folders (_floats, _skis etc) so make sure you’re working on the actual specific model you’re flying!
Hi again, Yes indeed I did see the skis one and the floats one. From memory there were about 6 variations so it might take some time with all the re-starts! I feel sure that I will get there with this and I’m grateul that you ave taken the time to help.
Absolutely no problem mate. Let us know how you get on and if it solves the issue for you. Or if you get stuck, just ask again
Hello again, and success! I still have tweaking to do but already it is useable as a plane and not a satellite launcher. I reduced the setting to 0.6 and then 0.5. I had to play around with sesitivity and extremity settings and even now I can limit the porpoising to a couple of hundred fps once it has had a few seconds to settle down. SUPER RESULT. So good luck with all your simming and thanks again.