Stuck Cyclic with New Trim Option

[JHzlwd]

The new Trim option is causing me an odd problem. (I realize I can turn this off in "GAME PLAY"). The way it is supposed to work is very nice but when it is active I frequently obtain the condition where the helicopter is totally unresponsive to Cyclic inputs. It's like you unplugged the flight control system from the USB port. The only way to break out of this is either to reset Trim (major bouncing around) or find some position of the Cyclic stick that works (there is usually one that works - possibly in only one direction) ... exercise that briefly (more instability) and then everything is back to normal. It is a real nuisance. This doesn't happen ever when using the old Trim technology.

 

Any suggestions most welcome.

 

Best wishes,

JH

[159th_Viper]

Re-Center your Controls :)

 

See this Post:

 

http://forums.eagle.ru/showpost.php?p=731504&postcount=8

[JHzlwd]

Re-Center your Controls :)

 

See this Post:

 

http://forums.eagle.ru/showpost.php?p=731504&postcount=8

 

Thanks. I will review this.

 

Best wishes,

JH

[EinsteinEP]

Also remember that "re-centering your controls" means your rudder pedals, too! It's easy to overlook those guys, especially when trimming during a turn.

[My Fing ID]

Personally I still use the old one. Too easy to lose control in a tense situation if you don't recenter it just so.

[Feuerfalke]

Personally I still use the old one. Too easy to lose control in a tense situation if you don't recenter it just so.

 

Both have their pros and cons. You can also adapt both to your needs, e.g. by increasing the value what's considered "centered" for both, cyclic and rudders.

[Frederf]

Yeah, you can resize the "centered" window to be very "loose" even to the point where the centered window is 100% of the axis... thus turning the new trim scheme into the old trim scheme. :p

 

Personally I like the old method better. Can't stand to have locked controls for any length of time.

[BKLronin]

I also tried the new way of trimming but after 2 cyclic lockups i returned to the old method. :) I´m simply better trained with that but if you adjust and learn the new the new one maybe easier at the end.

[Speed]

You should NEVER lose control of your controls while using the new trimmer method. If you ARE getting locked out of your controls, then go into this file:

 

(Program files)/Eagle Dynamics/Ka-50/Scripts/Aircrafts/_Common/FMOptions.lua

 

and change the HelicopterTrimmerZonePitch, Roll, and Rudder to much larger values. The default values of 0.05, 0.05, and 0.10 are WAY too tight of tolerances, I multiplied each of them by four anand now I never get locked out of my controls after trimming, and I also have never crashed due to the larger tolerances.

 

Remember, these tolerances just set exactly HOW close to center your stick needs to be before you regain control of your aircraft after trimming, it does not affect your joystick curves or deadzones are anything like that.

 

With the ability to adjust these tolerances so that you never get locked out of control of the aircraft, I'm not sure what the supposed cons of the "new" trimmer method are. Can anyone fill me in?

[Frederf]

The point of the new trimmer method is to lock the controls. That's entirely the major and only difference between the new trimmer and the old trimmer. With the old trimmer control was continuous across a trim button press, apart from a brief fade period controlled by the tau variable (0.5 sec or so). The new trimmer forces the controls through a "window" near neutral before control is restored to prevent sudden severe control inputs.

 

The con for the new trimmer method is that the "lockout window" exists (which is also its pro). If you edit the window large enough that the lockout never happens then you've basically turned the new trimmer into the old trimmer as the only thing that distinguishes the two is the lockout behavior.

[topdog]

...

If you edit the window large enough that the lockout never happens then you've basically turned the new trimmer into the old trimmer as the only thing that distinguishes the two is the lockout behavior.

 

But with 0 time-to-center (as the old trim method has normally)? So no matter where your controls are, the moment you release trim, they are immediately additive to the set position?

 

If so, that would explain a lot for the behaviour I've been getting. I never played BS before 1.0.1(a?c? I forget the current patch level), and have never modified the values in config files, but I have been getting no noticable time to center.

[Frederf]

Oh the tau-blend... yeah, the new trimmer might forgo the fade transition. I'm not sure; I use the old method :p

[JHzlwd]

Update - Trimmer Solution

 

>>So, IMHO you'd be adviced best, to check this config file:

 

...Scripts\Aircrafts\_Common\FMOoptions.lua

 

and adjust these settings as they are most comfortable to you:

 

HelicopterTrimmerZonePitch = 0.05 (5% in pitch)

HelicopterTrimmerZoneRoll = 0.05 (5% in roll)

HelicopterTrimmerZoneRudder = 0.1 (10% in yaw)<<

 

***************************************************

 

Perhaps the following will prove helpful to someone else suffering with the Trim control:

 

I did not initially have much luck at all with any of the references and found the helicopter still very unstable in response to Trim using either method and with Method 2 still leading to frequent lock-up of the stick although the tolerances were much increased. I did not have any problem at all before the patch. Read on ....

 

After much experimentation, however, I have achieved Nirvana with *both* methods. The solution lay not so much in adjustment of the trimmer script parameters (although this advice was helpful) as in the profiles for the x/y/z axes. In my case, at least, *it proved critical to have the calibration curves perfectly symmetrical in vicinity of the centered position* - for pitch especially. I am not sure why this is so important but it is a fact that when I shaped these properly in the simulation "Axis Tune" all instabilities disappeared as if by magic. This was verified by going back and forth a few times. Both trimmer methods are now a delight to use. My parameters are 0.4 for all of X/Y/Rudder (Method 2) and 4.0 when using Method 1. Just a click of the Trim button and I am trimmed now without any bouncing or drift. Too good.

 

Best wishes,

JH