HW Trimming Issues

[wazooda]

For the life of me, I can’t find a trimming setting that works well.

I generally fly the A2A C172 with hardware trim selected and trim assigned to the left rocker switch.

The problem I’m having is if I try to trim, for example, to level flight.

I apply back pressure to the yoke until I get zero VS, and then I quickly press and release the rocker switch. Usually, I don’t feel and relief of pressure on the first press or two. However, when I do, it usually feels like a “jump” and thus, if I’m applying back pressure on the yoke and press down trim, it over compensate and the plan starts a descent.

Any tips or suggestions for getting this to work better? I’m a real world pilot, and trimming my 172 is *infinitely* easier.

Thanks,

Paul

[sbrunner]

Hi Paul

Which Profil you are using, can you upload your profile to the new Profil Cloud so we can have a look

Regards

Stefan Brunner

[wazooda]

Hey Stefan,

Actually, I’m using your C-172 SP profile. 🙂

I messed with the Velocity setting under the trim and brought the speed down from 50 (default) to under 10.

This enables better fine tuning…. but I’m still only getting marginal tactile feedback…. and it takes much longer to trim.

Which, I guess, begs a question about what *should* I be feeling in the best case scenario?

One of the challenges, of course, is only having ever felt *my* yolk so I have nothing to compare it to.

Thus, assuming velocity is set at 50, flying an A2A C172 in P3D and having to apply back pressure to the yoke to remain in level flight… should I feel *some* relief in the back pressure when I push the trim rocker…. or does it have to hit some value before the yoke takes over some of the load?

My experience has been that when it eventually *does* relieve pressure, it usually over-compensates and I find myself pushing instead of pulling on the yoke to maintain level flight. I should also note that for testing purposes, I use one finger to hold level flight so I can immediately feel when the pressure is relieved.

In addition, I find that when I near the trimmed position (i.e. any pressing of the trim button will send it immediately out-of-trim with a +- 300-500 VS), I need to either push or pull the yoke VERY slightly hoping to find that “magic” spot of zero VS.

I know that trimming is very hard to do correctly in a sim, but I want to get as close as possible and hope for some guidance on this.

Thanks,

Paul

[skiff]

I’d like to bring this one back up to the top, as I’ve been having this same issue. The yoke doesn’t seem to respond to the first couple of presses of the trim button, and then will abruptly “jump.”

Is this expected? If not, any recommendations of changes to make?

[jovabra]

I’m using a registered version of FSUIPC.
My Trim up/down buttons are disabled in the CLS2sim software (4.24.9) but I use the “Not bound/USB button”. In the FSUIPC software and in the Button/Switch tab I select these “Elev Trim Up/Trim Down” functions and also the “enable control to repeat while held.
Note: I don’t have the A2A172 but the A2A182.
For me, the trim works the way I think it’s good. No heavy up/dwn reaction.
Ps I am not a real world pilot

[mrscott]

CLS-E vs CLS-E NG YOKE BUTTON / HAT SWITCH CONFIGURATION…?

I’d like to know how you all are configuring your Setups. It appears the CLS-E has the following arrangement of button/switches.

CLS-E
LEFT
1) Two Red momentary buttons. Located on TOP
2) One Black momentary toggle (fore/aft toggle for I assume Pitch Trim) Located on TOP
3) One Red momentary button (Located on backside of yoke)

RIGHT
1) Two Red momentary buttons. Located on TOP
2) One Black momentary toggle (fore/aft toggle for I assume Pitch Trim) Located on TOP
3) One Red momentary button (Located on backside of yoke)

CLS-E NG
LEFT
1) Two Red momentary buttons. Located on TOP
2) One Black momentary toggle (fore/aft toggle for I assume Pitch Trim) Located on TOP
3) One Red momentary button (Located on backside of yoke)

RIGHT
1) One Eight Way Hat Switch. Located on TOP

Assuming I have this identified correctly, How do you guys have these mapped? Are they the ideal arrangement or would you prefer a different setup?

Some folks have asked about different configurations and Brunner is listening. As a RWP, and soon to be Brunner FFB client, the original configuration appears ideal. Below is how I would set it up.

CLS-E
LEFT
1) Two Red momentary buttons. Located on TOP (Yaw Trim)
2) One Black momentary toggle (fore/aft toggle for I assume Pitch Trim) Located on TOP (Pitch Trim)
3) One Red momentary button (Located on backside of yoke) (PTT)

RIGHT
1) Two Red momentary buttons. Located on TOP (Roll Trim)
2) One Black momentary toggle (Would prefer the toggle rotated 90 degrees and not fore/aft toggle for use as Roll Trim) Located on TOP
3) One Red momentary button (Located on backside of yoke) (CWS)

All comments, suggestions and personal preference welcome.

Thanks,

Scott

[jovabra]

Hi all,
For me it is very simple. All buttons and the two rocker switches are linked with vJoy and FSUIPC for the PMDG737-800 and
for X-PLANE ZIBO to the X-PLANE vJoy button set-up.
I have a CP-Flight 737 MCP wich i can use fore PMDG and X-PLANE.
Only the left hand button (1) is for AP disconnect and the R/H (back side)is for start/stop clock
The L/H rocker switch is only for trim up/dwn.
What else needs to be activated goes to my CFY Throttle Quadrant or directly to my CP-flight Nav/Com panels.
This only for both 737-800
Other aircraft other configuration
Regards
John
Add info: Trim function is performed by the CFY TQ software. Also the throttle/reverser levers, spoiler speedbrake/flaps, parking brake, etc.

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