Aces High Bulletin Board

Help and Support Forums => Help and Training => Topic started by: WpnX on June 02, 2017, 05:31:36 PM

Title: Combat trim
Post by: WpnX on June 02, 2017, 05:31:36 PM
I've been messing with combat trim lately and can't seem to figure it out. Every time I turn it off my trims center and my plane rolls left (from torque I assume). Also, when I turn it off, my manual trims for aileron and elevator are not adjustable anymore so my plane continues to roll left and pitch up and I can't manually correct trim anymore.
Shouldn't I be able to adjust trims manually with combat trim off?
Title: Re: Combat trim
Post by: RedBeard on June 02, 2017, 06:00:19 PM
If you use manual trim at all, it turns combat trim off for you, so yes, you should be able to trim manually without combat trim.  It's the only possible way to trim.

Something is goofy with your setup.  If you are in auto climb mode, you should be able to do the following:

1. auto climb to 5000 feet
2. turn off your engine
3. let the aircraft stabilize in a glide with a consistent rate of descent
4. turn off combat trim

The airplane should keep the autopilot trim setting and stay in a constant rate of descent in a fairly trim state. 

If you have auto takeoff set, launch, but cancel takeoff by jiggling the stick.  Look at your trim settings and rudder at least should be hard over.  Turn off combat trim and check if they jump.  If they do, your setup isn't right.

Look at your key map to see what's mapped to the autopilot functions.  Perhaps you're using Trim Set instead of combat trim toggle?
Title: Re: Combat trim
Post by: Mongoose on June 02, 2017, 08:39:44 PM
  You might also try re-calibrating your joystick.  Although that shouldn't keep you from trimming your plane, it could through you off.
Title: Re: Combat trim
Post by: FLS on June 03, 2017, 03:28:42 AM
I've been messing with combat trim lately and can't seem to figure it out. Every time I turn it off my trims center and my plane rolls left (from torque I assume). Also, when I turn it off, my manual trims for aileron and elevator are not adjustable anymore so my plane continues to roll left and pitch up and I can't manually correct trim anymore.
Shouldn't I be able to adjust trims manually with combat trim off?

By "manual trim" do you mean the KB keys? It sounds like you have trim mapped to analog controls, that would over ride the KB keys but still allow CT.
Title: Re: Combat trim
Post by: WpnX on June 03, 2017, 08:54:24 AM
You guys were right, there was something goofy on my setup. FLS nailed it, I had an analog axis set up to my trims along with a hat switch. I unassigned the analog axis and now it is working like it should.
Thanks for the help fellas.
Title: Re: Combat trim
Post by: Traveler on June 03, 2017, 05:20:59 PM
May have a sticky pot. 
Title: Re: Combat trim
Post by: Dobs on June 06, 2017, 04:27:37 PM
May have a sticky pot.

Recommend you change dealers if that is the case...
Title: Re: Combat trim
Post by: jimbo71 on June 07, 2017, 12:27:59 PM
Recommend you change dealers if that is the case...


 :old: WRONG!
Title: Re: Combat trim
Post by: popeye on June 08, 2017, 01:32:12 PM
I accidentally moved the mechanical trim control on my CH Combatstick and it induced a roll that AH calibration wouldn't correct.  I don't use combat trim so don't know how that would be affected.  Something to check, though.
Title: Re: Combat trim
Post by: 1stpar3 on June 08, 2017, 04:25:02 PM

 :old: WRONG!
Now JIMBO,he was talking about Sticky POT as in controller. Dobs is correct as far as type of Joystick dealer :uhoh I do love how you think though BROTHER! We sure got into some "sticky" situations back in the day, you were a bad influence :rock