I’ve flown quite a few 4-axis AFCS aircraft over past 20 yrs and they all behave very much the same…

I’ve flown quite a few 4-axis AFCS aircraft over past 20 yrs and they all behave very much the same……..the collective must be able to be moved and used without pressing in the FTR trigger regardless if upper pitch modes engaged or not…….this is a safety requirement for certification. Yes your arm will get tired so of course normally you use the FT system. Also these acft the main rotor (and T/R) are all dual independent hydraulic powered. Has to be…….if you lose all hydraulics to the MR you can kiss your backside goodbye……forever! So if you lose one hyd side you can continue to use the controls as if no hyd was lost……normally so. Now there are some heli that have only one hyd side to TR and so if one hyd system that powers the TR is lost then you can get real heavy pedal control……but these acft are usually 3 axis not 4 axis AFCS.
So would be nice to have this capability to manually move collective with FT engaged……just to make it realistic …..

MMike T I’ve flown quite a few 4-axis AFCS aircraft over past 20 yrs and they all behave...

H145Rotor-Sims•12/27/24, 3:21 PM

Hi Mike, thanks for your insight on this. @Number481 is working on code in telemffb to have this feature and is currently testing it.

H145Rotor-Sims•12/27/24, 5:49 PM

Just got the cyclic up and running but I'm having an issue. I press the force trim reset and then the stick about 5 seconds later starts to fall forward and it's applying force. All I have on in my VP configurator is global master gain set to 90% spring 90%, effects are spring checked, adaptive re-centering both x y at 90%. In telem FFB I have force trim and force trim reset enables and assigned via loop back and it works. I have axis control on as well as axis control trim following. Not sure what's happening

smitty•12/27/24, 5:57 PM

ive never used force trim reset, i dont even have it bound. does a real heli have a reset?

Ssmitty ive never used force trim reset, i dont even have it bound. does a real heli ha...

H145Rotor-Sims•12/27/24, 5:58 PM

Yes the H145 has a force trim reset.

smitty•12/27/24, 6:00 PM

beats me, try these scenarios - 1. bound only in-game with hpg 2. bound only in telemffb. 3. bound both places

H145Rotor-Sims•12/27/24, 6:01 PM

Basically what is is when I'm sitting here in the heli and hit the trim release and put it to a new position it starts to fall forward

smitty•12/27/24, 6:02 PM

do you have some nonzero value for constant/ friction in configurator?

Ssmitty do you have some nonzero value for constant/ friction in configurator?

H145Rotor-Sims•12/27/24, 6:02 PM

Hmm that might be it

smitty•12/27/24, 6:05 PM

shouldnt need much, try starting with this

Ssmitty shouldnt need much, try starting with this

H145Rotor-Sims•12/27/24, 6:05 PM

What do you have in effects?

smitty•12/27/24, 6:06 PM

smitty•12/27/24, 6:07 PM

but those are for when the game isn't doing anything. the spring/displacement mapping applies in game though.

H145Rotor-Sims•12/27/24, 6:16 PM

smitty•12/27/24, 6:17 PM

whoa thats really weird.

smitty•12/27/24, 6:18 PM

there was a debug mode on the mfd for the AFCS but i forget how to show it.

smitty•12/27/24, 6:19 PM

i think number481 and/or exil will need to help on this one

H145Rotor-Sims•12/27/24, 6:20 PM

That's in VMS/Syst/ that shows the whole afcs and if you go to control it shoes the flight controls

H145Rotor-Sims•12/27/24, 6:21 PM

HH145Rotor-Sims Click to see attachment

f14billy•12/27/24, 7:26 PM

Does this only happen in the sim? Or also without the sim on? And also did you do the balance spring setup to compensate for the weight of the grip and extension?

f14billy•12/27/24, 7:29 PM

In your video posted on the diy section I noticed that your balance spring setting is disabled. You want to disable all effects and enable the balance spring effect. Then modify the force values to where you can move the stick in any position and it will stay in that position.

f14billy•12/27/24, 7:29 PM

Once that's done then reenable all your settings.

Ff14billy In your video posted on the diy section I noticed that your balance spring setti...

H145Rotor-Sims•12/27/24, 7:33 PM

Hi Billy, so the balance spring isn't supposed to snap it back to center?

H145Rotor-Sims•12/27/24, 7:33 PM

I enabled the balance spring and have it set to 50% and when I push and let go it tries to go back to center

f14billy•12/27/24, 7:34 PM

The balance spring has 4 values. Basically it applies a force opposite to where it's put away from the center. You don't need much force on it. Just little by little adjust until your stick doesn't spring back

f14billy•12/27/24, 7:35 PM

It's a must for extensions and heavy sticks

f14billy•12/27/24, 7:35 PM

Just make sure all other effects are disabled as you tweak it until you find the right settings

f14billy•12/27/24, 7:36 PM

50% is too much for sure specially with the powerful 86 motors.

H145Rotor-Sims•12/27/24, 7:37 PM

I have all effects off

f14billy•12/27/24, 7:38 PM

Start with the Y axis to the front. Then find what setting will allow the stick to stay put when you move it forward.

f14billy•12/27/24, 7:39 PM

Then Y axis to the back. Then X axis left and right. Then tweak when doing diagonals.

H145Rotor-Sims•12/27/24, 7:43 PM

f14billy•12/27/24, 7:45 PM

Yes it won't be perfect but it will be good enough. Then when you add all other effects specially friction. It will be even better.

Ff14billy Yes it won't be perfect but it will be good enough. Then when you add all other ...

H145Rotor-Sims•12/27/24, 7:46 PM

But in telemffb there are model overrides in the settings. Would I check those on or leave off. Seems to have some important values there

f14billy•12/27/24, 7:47 PM

As long as it doesn't override the balance spring

f14billy•12/27/24, 7:47 PM

That needs to be set all the time.

f14billy•12/27/24, 7:48 PM

With the values you have tweaked in the configurator.

H145Rotor-Sims•12/27/24, 7:50 PM

It has a cyclic spring gain which I have checked on at 100%. Currently I'm moving the stick with the spring on and force trim and it appears to stay in place without running the sim

f14billy•12/27/24, 7:51 PM

Perfect. Then you found the right values from your set up.

f14billy•12/27/24, 7:51 PM

Now it's a matter of trying the sim and if it doesn't work... Some telemffb tweaks may be needed.

f14billy•12/27/24, 7:52 PM

Or if you like the way the configurator values feel (spring gain etc) just check the sticky option on the configurator and they won't be overwritten.

H145Rotor-Sims•12/27/24, 7:53 PM

What I notice is when friction is on the stick doesn't come back to center when I press trim reset. I don't have adaptive re-centering on

f14billy•12/27/24, 7:53 PM

Set Adaptive recentering on

f14billy•12/27/24, 7:54 PM

It will definitely help with that

f14billy•12/27/24, 7:55 PM

Otherwise it will try to come to the center but fall short due to the friction.

Ff14billy Otherwise it will try to come to the center but fall short due to the friction.

H145Rotor-Sims•12/27/24, 7:56 PM

I just spoke to the engineer and nope no trim release on this heli

H145Rotor-Sims•12/27/24, 7:56 PM

The reset on the cyclic only clears the acknowledgements on the mfd

f14billy•12/27/24, 7:57 PM

One less thing to worry about haha

H145Rotor-Sims•12/27/24, 7:58 PM

With that being said then adaptive re-entering isn't needed am I correct?

f14billy•12/27/24, 7:58 PM

I don't think so

f14billy•12/27/24, 7:59 PM

Since you aren't changing the center and the sim is never trying to center it there

I’ve flown quite a few 4-axis AFCS aircraft over past 20 yrs and they all behave very much the same…

Similar Threads