Elevator trim question

[Stones]

Hi guys
With combat trim off, does trimming the elevator up/down only alter the neutral resting place when there is no controller input and/or does it allow the elevators to travel further?
I understand what trim does, just not how it is modeled in game.
Sitting on the runway in an La5fn and using external F3 view I can see the elevators move slowly whilst adjusting the mid/neutral point with my trim buttons but when I give them max controller inputs from the stick, they don't seem to move up/down any further than before.  They then just come to rest at the point set by trimming.
My question really is how does trimming the elevators up when trying to pull out of a dive work, if travel is not increased by trimming? 
To pull out of a dive I would have my stick all the way back.  If I pull all the way back and hit the trim up button I can feel more elevator.
If travel is not increased, how does this work.
I don't know if there was/is a trim tab on the La5 which has not been graphically shown/animated in game.
Maybe I am missing something.
Any help, just curious.

Stones

[TequilaChaser]

Good evening Stones,
click the following link, it should help you understand exactly how Trim is affected in game, both with Elv, Rudder, aileron trim and Combat Trim

http://trainers.hitechcreations.com/trim/trim.htm


please post back here, if you have any more questions, or need more help

hope this helps ~S~

[ImADot]

I believe the planes models don't have trim tabs modelled, so your trim adjustments are translated as "move the control surface just a bit this way" (which you physically see as the whole elevator moving up or down) to simulate being trimmed for neutral control input.

[BaldEagl]

To quickly answer your specific question regarding trimming out of a dive:

When you're diving in a plane in which the controls stiffen the game can't actually make it hard for you to pull the stick back, so instead the elevators travel only a limited amount of their maximum deflection.  Like real trim tabs, when you trim up the tabs deflect downward into the airstream assisting the pilot in overcoming the airstream and raising the elevators.  The pilot can do this because the trim tabs are smaller than the elevators and are therefore easier to deflect into a fast airflow.  With this assistance, the elevators are now able to move to maximum deflection (i.e. relaxing the pressure on the stick).

[Stones]

Thanks very much for the help guys.  Was just a little confused in how it was applied in the game <S>