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Trim Problem

Featured Replies

I use a Thrustmaster T.Flight Hotas X controller used in many Flightsims.......FSX....Strike Fighters etc, and it functions 100% on all buttons and axes in every one.........I have found that when flying in MS Flight the up trim(4 button) and down trim (3 button) have hardly any effect and have to be pressed 20 or more times to have any noticeable effect.....anyone else had this problem...if so any ideas as to why....!!!!!

Hmm no that does not make a lot of sense, in fact the default standard.xml file for pitch up and pitch down trim, includes a repeat statement, so each time a button is pressed that is mapped to trim up or down, it uses I assume the default keyboard repeat rate. Many found this to be just the opposite, one button press either up or down, would result in the trim moving app 5 degrees at a time. Some found this too sensitive and removed the repeat line for trim up and trim down, therefore each button press on trim equated to precisely 1 degree of trim movement.Now if you had modified your pitch trim in the standard xml by removing the repeat line, then this might make sense on certain aircraft.Btw, are you noticing this on ALL aircraft or just a specific one??

Don B

I got around the repeat problem by assigning two sets of buttons to the trim function. One set has a repeat, the other does not.Hook

Larry Hookins

 

Oh! I have slipped the surly bonds of Earth
And danced the skies on laughter-silvered wings;

  • Author

It occurs on all aircraft.......!!!!

Have you made any modifications to the standard.xml file at all?

Don B

  • Author

No I havn't carried out any mods.......I dont even know what the xml file is.....not really up on computers.... just like the games ,,,LOL

I am stumped then - certainly you should be seeing somewhat more of a response to the pitchup and pitchdown trims. In the Stearman for example, pitch trim is very sensitive , more so than in say the RV6.Only thing I can think of you might try just to see, is mapping the pitchup and pitchdown trims to different buttons on your stick and see if that makes any difference.

Don B

  • Author

Tried remapping to other stick buttons but same result..........I changed the keyboard mapping to the up and down arrows instead of shift + up arrow and shift +down arrow and it works spot on with those keys ,bit of a mystery though.......I really like to have the trim buttons on the stick.........thanks for your help.......Regards Tarsky

Strange, perhaps you are having shift key issues, who knows...

Don B

  • Moderator

No, when assigning trim to stick or yoke buttons, the <Repeat>32.0000</Repeat> is automatically added to the standard.xml file entry for those buttons, which means that no matter how quickly you press the button, the trim will change from 4 to 6 degrees!The solution is to load standard.xml file into notepad.exe and delete those entries... :Nerd:

Fr. Bill    

AOPA Member: 07141481 AARP Member: 3209010556


     Avsim Board of Directors | Avsim Forums Moderator

Yes Bill but his issue was just the opposite, when he mapped the pitch trim to buttons on his stick, he was having to press several times , like 20, just to get any perceptive movement at all... whereas for many of us, the standard joystick mapping to buttons of the pitch trim statement, was overly sensitive...

Don B

  • Author

Hooked up my old MS joystick just to see what would occur and lo and behold both the stick trim buttons worked perfectly........it must be something to do with the "Thrustmaster T Flight" stick,,,but as I said in my earlier post it works perfectly for trim in all other flight sims...this is now bugging me........!!!!!!!

I wonder if the trim button on that stick is actually an axis, not a button. Anyone know?Hook

Larry Hookins

 

Oh! I have slipped the surly bonds of Earth
And danced the skies on laughter-silvered wings;

  • Author

The trim buttons on the T Flight joystick are button 3 and button 4 by default and definately not an axis.

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