Some of my planes in IL2 Great Battles the center is forward or the trim is acting very weird if I t

Some of my planes in IL2 Great Battles the center is forward or the trim is acting very weird if I trim nose down the stick moves forward alot in order to keep plane level. I need to apply constant force down when doing so. But some of my planes do not act like this I'm using the same config profile for all right now. any thoughts? I notice this on the duck the spit and the p39 so far I know it happens on other but those are the ones I've flown recently.

TeufelHundenOP•1/1/25, 4:12 PM

it like trim is working but why is it having the opposite effect on the direction of my stick like this?

TTeufelHunden Some of my planes in IL2 Great Battles the center is forward or the trim is acti...

kaltokri•1/1/25, 4:13 PM

Do you have configured curves in IL-2? This lead to the problem on my side.

TeufelHundenOP•1/1/25, 4:16 PM

no curves in IL2 at all

TTeufelHunden Some of my planes in IL2 Great Battles the center is forward or the trim is acti...

Number481•1/1/25, 9:15 PM

not sure I fully understand your problem description, but if the trim movement seems to be backwards, in general I would recommend to make sure the dot in the axis view in the configurator app moves in sync with your joystick. If one or both axes are backwards, use the invert setting for that axis in configurator.

If your axis is backwards and you invert it in the game, this will usually lead to inverted forces since there is typically no sync between "ffb direction" and "axis direction".

TeufelHundenOP•1/1/25, 9:17 PM

I have turned my stick base around but I checked the invert on my pitch axis when I turned my base around. Is there another area I need to invert for trim to work correctly.

TeufelHundenOP•1/1/25, 9:18 PM

TeufelHundenOP•1/1/25, 9:19 PM

what you are saying makes sense my stick works good for everything but when trimming plane out the stick moves the wrong direction

TeufelHundenOP•1/1/25, 9:19 PM

I just don't know how to fix it.

Number481•1/1/25, 9:25 PM

does the purple dot follow the stick correctly and in the right direction?

TeufelHundenOP•1/1/25, 9:31 PM

yes the purple follows

TeufelHundenOP•1/1/25, 9:32 PM

its kinda weird when i trim out plane stick needs to be forward to stay level?

TeufelHundenOP•1/1/25, 9:32 PM

only in a few planes

Number481•1/1/25, 9:34 PM

I guess I misunderstood then? Thats how the trim effect works. If you trim down, the stick will move forward, same for other directions.. the center point of the spring effect will move in the direction you are trimming.

If nose down trim is required to maintain level flight, the stick will be forward of center.

TeufelHundenOP•1/1/25, 9:39 PM

yes maybe these planes are just weird to me and the FFB is weird to me as well never used it before but some planes act different most planes i can trim out and stick stays in middle level flight few planes stick must be well forward in level flight while trim is 100

TTeufelHunden yes maybe these planes are just weird to me and the FFB is weird to me as well n...

Number481•1/1/25, 9:45 PM

I can't really help with what to expect from various aircraft in IL2, but that is how FFB trimming works in general. Various aircraft my implement it differently or not at all.

TeufelHundenOP•1/1/25, 11:29 PM

yeah I think some of these planes are just really nose light and flying at high speed even with full trim nose down the nose wants to raise

Vertigo (VIV)•1/2/25, 7:16 AM

Some planes simply dont have a pitch trim, like the IL2 itself and i-16 (presumably they didnt have one IRL). If you want, you can "cheat" and use vpforce configurator to implement hardware force trim (using trim controls defined there). Some planes in Il2 require excessive nose down trimming with flaps down.

HH145Rotor-Sims The first screen shot you show the balance spring at -94% in the forward postion...

mark turner•1/2/25, 1:56 PM

Hi, the last screenshot with the other effects checked is what I have now, the first shot was when I was trying extremes of the slider to see what happens.

Mmark turner Hi, the last screenshot with the other effects checked is what I have now, the f...

H145Rotor-Sims•1/2/25, 2:47 PM

I wish I could help further. I tried multiple tests and grip lengths and didn't have an issue setting up based on my own video and what F14 Billy recommended as in the process. Maybe you have an issue with your unit. How did you build your unit, is it pre-built etc? May have to reach out to the devs and tag them

mark turner•1/2/25, 3:25 PM

Hi, thanks, it was pre built and seems to work fine apart from not behaving as you describe in the video!

Mmark turner Hi, thanks, it was pre built and seems to work fine apart from not behaving as y...

H145Rotor-Sims•1/2/25, 3:46 PM

If you have a pre built rhino by walmis then definitely reach out to him

Mmark turner My settings are pretty much default, but I also get an annoying oscillation arou...

walmis•1/2/25, 4:10 PM

You have a decently steep spring gain map applied. I've loaded your config and tuned the filters a bit, works reasonably well at high pot gain (the attached .vpconf file will only patch the filter values so you can apply it on top of your current profiles)

Rhino-filters-tight.vpconf488B

Reed•1/2/25, 5:48 PM

@mark turner what is the reason you have such a steep spring gain? I’ve tried steep spring gains to make the centering stronger for holding the long extension but I get reverberations still.

142nd_Bama•1/2/25, 6:11 PM

It appears my ingame Trim control for dcs is no longer working. Not sure when it happened as I’ve been using hardware trim for helicopters and haven’t been in a fixed wing for a while so I haven’t noticed the issue until now. Has anyone ran into this or have any ideas as to what the issue could be?

1142nd_Bama It appears my ingame Trim control for dcs is no longer working. Not sure when it...

Number481•1/2/25, 6:24 PM

make sure you uncheck both "sticky" spring and "override trim" in configurator. Beyond that, its just simply binding the trim controls in DCS (and the normal stuff like making sure FFB is enabled globally)

walmis•1/2/25, 6:25 PM

Also check dcs.log, if it lists vJoy input device it could cause problems with trim

NNumber481 make sure you uncheck both "sticky" spring and "override trim" in configurator. ...

142nd_Bama•1/2/25, 6:29 PM

Nothing is checked and also turned off telemffb to be double sure…. Thank you for the answer!

Wwalmis Also check dcs.log, if it lists vJoy input device it could cause problems with t...

142nd_Bama•1/2/25, 6:29 PM

I will check that, thanks!

Wwalmis Also check dcs.log, if it lists vJoy input device it could cause problems with t...

142nd_Bama•1/2/25, 7:31 PM

i did find this in the logs

02 19:21:39.194 INFO INPUT (Main): created [vJoy Device] with full id [vJoy Device {6BE6F3E0-7745-11ed-8002-444553540000}], ForceFeedBack: yes, guidFFDriver: {EEC6993A-B3FD-11d2-A916-00C04FB98638}

142nd_Bama•1/2/25, 7:56 PM

Still having the issue...
i removed the vjoy device, no longer appears in logs,.
no effects are sticky in vpconfig
there are no curves or saturation in the axis within dcs
nothing that i can see in telemffb whould be causing it but i closed it just in case and it still will not trim.
when i hold the trimmer button the spring force is removed but it will not hold the new trimmer position
the trimmer mode is in either default or instant if "ffb friendly" is present
global ffb is checked in dcs

this is challenging my patience!

walmis•1/2/25, 8:03 PM

See the thread here: https://discord.com/channels/965234441511383080/1230852705593851964/1324122150206050344
someone had the same issue, check the points outlined in the thread

walmis•1/2/25, 8:04 PM

The trim (blue circle) indicator should jump to the trimmed position:

142nd_Bama•1/2/25, 9:31 PM

i updated/reupdated everything to do with vpforce and the problem seems to have fixed itself!!

RReed @mark turner what is the reason you have such a steep spring gain? I’ve tried st...

mark turner•1/3/25, 7:39 AM

This is to make the stick feel harder to pull the more I pull it….I wanted some appreciable resistance at around 3 or 4 G which is commonly used for most tactical turns.

mark turner•1/3/25, 7:41 AM

By the way, I am also suffering with oscillations around the centre and despite some hours of tinkering, not managed to isolate any settings which help.

mark turner•1/3/25, 7:42 AM

Going to try Walmis settings above

mark turner•1/3/25, 7:45 AM

It would be good to know exactly what causes it….Last year when I had the issue again, Walmis advised reducing damping voltage - but this time adjusting those settings seemed to make no difference. I will check now with the supplied .conf file

mark turner•1/3/25, 7:48 AM

It’s frustrating as I am not sure what I did to bring it back again, apart from adjust the gain curve. Making it straight again does not get rid of the issue

walmis•1/3/25, 7:49 AM

It's best to reset to defaults and go from there

mark turner•1/3/25, 7:50 AM

Which is why I started doing the calibration as recommended above which kick started the questions……as I could not get the stick to behave as per the suggested process.

mark turner•1/3/25, 7:57 AM

While I have your attention Walmis, is it correct that I should feel the notching and clogging as described above when I wipeout the stick around the circle?

walmis•1/3/25, 8:08 AM

Can you test with default rhino parameters? I think you had some deadband set in your spring setting which would introduce notches in the center

mark turner•1/3/25, 8:26 AM

Am recalibrating now.....the notches and cogging feeling are not in the centre, they are at the outer extremes of movement, I have a distinct notch at approx 4 & 8 oclock and it feels like several smaller notches as I move the stick from approx 10 - 2 oclock. My stick is mounted backwards BTW so the pots are nearest me. I have inverted X axis so the purple dot mirrors the physical position of the stick when it moves

mark turner•1/3/25, 8:26 AM

This is with the default config loaded and all boxes in effects unchecked

mark turner•1/3/25, 8:27 AM

I am going to try the adjustment to balance spring as per the linked video again now.......

mark turner•1/3/25, 8:51 AM

OK, have just been adjusting as per the video, but I think the issue lies with the extension. The guy in the video has an S bend extension that keeps the stick not far from the centre. My Z extension displaces it 150mm to the rear. So there is no setting that works to keep it in place, once you go past centre point against the displaced weight. I can get it roughly to stay but there are certain parts of teh range of movement where no amount of slider setting will offset the weight of the displaced grip.

mark turner•1/3/25, 8:52 AM

And of course it behaves differently above and below the centre

walmis•1/3/25, 9:14 AM

For the Z extension you might need to use some static force on the Y axis, since it works more like a counter balance

walmis•1/3/25, 9:28 AM

The cogging is only on one axis?

Bob Bushman•1/3/25, 9:39 AM

I have the z-extension and all I've applied is 6% static force.

Some of my planes in IL2 Great Battles the center is forward or the trim is acting very weird if I t

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