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Joystick Sensitivity in general - compared to ka-50 "Realism"


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well, becoming "obsessed" with setting up controls for DCS:BS, a thought crossed my mind, since i'm messing around with configuration of the controls...

 

as we all know, when it comes to joystick-input, the black shark is a very touchy lady.

the GUI-manual says, it's best to leave the axis input curvature at LINEAR because of the advanced flight model implementation. so here comes my question: the real ka-50 cyclic control compared to a joystick, maybe 4-5 times longer in size (i made a little sketch to illustrate the issue). if the input is simulated 1:1 and not scaled down to a joystick input range, this will result in much more sensitivity than "in reality".

 

so is it really the fact that the controls work as intended? somehow i got the feeling that this is not the case. is there any joystick setup that ED used as a reference during development?

 

theory: will a joystick-mod with real life dimension of the ka-50 cyclic result in a more realistic handling simulation of steering sensitivity?

 

i'm very interested in other opinions, esp. g940 users? how do you adapt? what are your configuration settings?

 

ps: i hope that nobody at ED starts to hate me for my little bit picky complaints, but i want to have the max. possible immersion! :smilewink:

StickSketch.jpg.bfcd623732fd65e89cff0851677a069c.jpg


Edited by Alec Delorean

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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I don't think that a helicopter stick will deflect to the same angles as a small joystick does, that would be unpractical in such a small cockpit. Therefore those large sticks most likely have a steeper output curve, than the small ones, to compensate for the smaller angle of travel available. The easiest approach to such a problem is simply to look at full deflection of the stick, deflect the control surfaces fully at this point and proceed linear to center from every direction. I hope it is clear to you what i mean. That way, size and deflection angle of the stick do not matter, every stick will yield the same control input at the same deflection percentage.


Edited by sobek

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I did mod my X45 to approximately the same dimensions of the actual stick, but using linear, the poor precision of the stick kept giving me issues near the center position.

 

I then switched to a curved input and what I got is much better handling at low speeds or hover, but sluggish responsiveness when performing high-speed maneuvers. This takes tweaking...

 

Also, I read somewhere about a study some canadians did, about introducing fluy-by-wire controls in helicopters. They found that using a small stick would indeed require curved input transformation, because even with high-precision sticks, the real pilots were at much discomfort with the small movement range of the sticks near the center position. But then ED claims that actual Ka-50 pilots found the linear setup to be the best...

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"Engineering is the art of modelling materials we do not wholly understand, into shapes we cannot precisely analyse so as to withstand forces we cannot properly assess, in such a way that the public has no reason to suspect the extent of our ignorance." (Dr. A. R. Dykes - British Institution of Structural Engineers, 1976)

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yes, this is what i'm talking about. when i'm trying to alter the curvature in the axis settings, the outcome is always unsatisfying somehow.

 

But then ED claims that actual Ka-50 pilots found the linear setup to be the best...

 

i really would like to know what stick or flightsystem they used.


Edited by Alec Delorean

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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If you're fiddling with the controls, try messing with the saturation. I adjusted it in the relevant plane for each axis and found it made a significant difference as I was reducing the amount of potential throw- particularly with the Ka-50, you can't use maximum throw effectively anyway (instant blade strike/death) so it smoothed things out very well. The point is that you don't need full travel- you'll never use it with helicopter. If you'd like clarification, I'll post the settings.

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Huckle, let me kindly disagree. I like to fly low very fast following roads and rails, and to make hard turns (and recover from them) you need to use full range. You'll need this ability as well when strafing or flying very low to escape a hot area or when being pursued by a SuperCobra tossing hellfires at you like it's the end of the world and you've kidnapped Jesus. And believe me, it will happen...

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"Engineering is the art of modelling materials we do not wholly understand, into shapes we cannot precisely analyse so as to withstand forces we cannot properly assess, in such a way that the public has no reason to suspect the extent of our ignorance." (Dr. A. R. Dykes - British Institution of Structural Engineers, 1976)

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Damn, I've realised that my settings would be saved as an image file, not an archived file. I've imaged BS install, been playing RoF for past month (one-sim man, me). I posted about it after I first tried, this was for FFB stick but I think may help you also-

http://forums.eagle.ru/showthread.php?t=44109

I'm not sure if description there helps? The point was that (ie) instead of pitch joystick line running 45 degrees bottom left to top right, with saturation reduced to 85% in y axis but not x, it flattens the line down to say 30 degree angle, thus producing a more relaxed pitch response. Sorry that I can't post screenshots at the moment- it's not easy to follow if you aren't looking at control config in BS.

 

@sinelnic

You're welcome to disagree- every user is going to have different experience. I choose what works for me and if I think it might be useful for others, I'll post something. In this case, I retained 85-90% control authority, with a vast gain in smoothness and accuracy when gunning.

This isn't directed at you, but I do find that there are a lot of people, including mods and developers, on this forum who are more concerned with telling people how they should fly, rather than helping them to get the most out of the game they purchased.

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I don't think that a helicopter stick will deflect to the same angles as a small joystick does, that would be unpractical in such a small cockpit. Therefore those large sticks most likely have a steeper output curve, than the small ones, to compensate for the smaller angle of travel available. The easiest approach to such a problem is simply to look at full deflection of the stick, deflect the control surfaces fully at this point and proceed linear to center from every direction. I hope it is clear to you what i mean. That way, size and deflection angle of the stick do not matter, every stick will yield the same control input at the same deflection percentage.

 

definitely...

 

the joysticks usually have a 60 degrees of deflection where as the cyclic controller of typical height has around 45 degrees..

 

if you use gears to compensate... then, you can correct that..

 

i used a 4:3 ratio, and my cyclic works as good as a regular gaming joystick...

 

 

simpit005.jpg

 

 

IDEAL you want to use the full deflection of the pot for best resolution...

messing around with the games axis curve is actually cheatting, plus, not all games have advanced controller setup like black shark and lo:fc...

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woooo, hannibal, nice cyclic!

 

ok, i will check out saturation settings.

 

i just made a little track with my usual test course for setting up controls and trying out something.

 

start - aim with unguided rockets - freestyle - catching the train - landing.

 

i'm getting better with pedals now, it's my 2nd day with the g940.

getting warm with the flightdirectormode too, but don't like this damn sensitive cyclic.

 

 

ps: yes, i forgot the brakes...:music_whistling:

FDfunWithPedals.trk

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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Have you tried to turn down the g940's sensitivity in the logitech software?

 

can't find an option for that?

or do you mean the force strength? (i leave these on standard 100%, centerspring deactivated)

 

also played around with saturation settings, but i think this cuts off to much of the possible input.

 

i will go for a complete reinstall of BS today, i think there is something messed up. i hope that will help.

there is no force compensation during trim and other things related to ffb...


Edited by Alec Delorean

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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well, decreased sensitivity in the logi-gameprofiler to -> 0% !!!

FD + aiming with rockets = perfect so far...

 

it's also very cool, that you can program the profiler on the fly with alt+tab switching.

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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well, decreased sensitivity in the logi-gameprofiler to -> 0% !!!

FD + aiming with rockets = perfect so far...

 

it's also very cool, that you can program the profiler on the fly with alt+tab switching.

 

I would also like to know if this sensitivity setting is the same as the overall effect settings (my profile is in swedish so I dont know what the name is for it in the english version but its the first dragbar from the top I'm talking about)

Go Ugly Early

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@kirai

 

made a screenshot, because i have the german version.

 

applied this setting to every axis for blackshark and i'm happy with it somehow for the first time. i even programmed a very dirty version of PeterP's trim&rudder-unchain-fix into it.

after exporting the profile to an xml-file you can easy edit and re-import it to the profiler. unfortunately, i have no experience with xml-programming, so the rudder fix works only very simple. a macro with a quick press and release of trim, followed by a very quick pressing of the Y and X keys for overiding the trimmed rudder position.

LogiProfiler.thumb.jpg.43d7f10bd8afb5bac1a6eb4986462282.jpg


Edited by Alec Delorean

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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Regarding sensitivity.. I seem to feel that response is a little twitchy.. But Im confused by the curves in the games set up process..does negative or positive reduce the sensitivity/response... I seem to be watching boxes fly around on graphs but Im not really understanding whats happening...

 

Saitek x52

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Let me see if I can explain.

 

A 1:1 ratio of input to stick movement would be a straight line as it is as default

 

Take a curve that starts out gradual and gets steeper as it goes left or right. This curve would give reduced input per stick movement near the center of stick movement and become closer to a 1:1 ratio near the corners. I believe this would be a negative curve. This is where the terminology becomes fuzzy to me. But, if this is a negative curve then a positive curve would give more input that stick movement and make it more sensitive.

 

Hope that helps.

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Hannibal, what gimbals are you using at the bottom of that CH flight stick handeled cyclic and is the shaft plastic or steel? I have the same CH stick and want to build a cyclic!

 

awsome job

 

Redeye

 

 

Redeye

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i started a complete new thread about the g940, some kind of a compact summary.

helpful for fresh g940 owners i hope and also regarding the sensitivity problem.

 

http://forums.eagle.ru/showthread.php?t=45695

i9 13900K @5.5GHz, Z790 Gigabyte Aorus Master, RTX4090 Waterforce, 64 GB DDR5 @5600, Pico 4, HOTAS & Rudder: all Virpil with Rhino FFB base made by VPforce, DCS: all modules

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  • 2 weeks later...
well, decreased sensitivity in the logi-gameprofiler to -> 0% !!!

FD + aiming with rockets = perfect so far...

 

it's also very cool, that you can program the profiler on the fly with alt+tab switching.

 

I use a Logitech Force 3D Pro

 

I think the logi-gameprofiler senstivity settings are stacking with game's senstivity settings. What works best for me is having no profile and just using the software to adjust the FF only. Use the senstivity settings in BlackShark.

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I use the Logitech Xtreme 3D Pro and have my x-axis and y-axis at 50% sensitivity with 5% deadzone. Problem is that I don't know if I'm "cheating" because the real BS has or more sensitivity or not... Flying works really well with above settings but not sure if it resembles the real deal...

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I use the Logitech Xtreme 3D Pro and have my x-axis and y-axis at 50% sensitivity with 5% deadzone. Problem is that I don't know if I'm "cheating" because the real BS has or more sensitivity or not... Flying works really well with above settings but not sure if it resembles the real deal...

 

Well, think of it as if Kamov engineers customized the controls under your petition :D

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