Spit sabotaged, Goering releieved

[swiss]

Originally Posted by PE_Tihi

Trim surfaces on the WWII planes looked like small 'rudders on a rudder', small control surfaces that would offset the main control surface slightly from its neutral line. Trim surface had to go down a bit to push the elevator up into a climb position. It ll be clear to you , that the maximum control moment of the elevator would be slightly reduced in it's extreme upward (climb) position, trimming surface deflecting the air-stream in the 'wrong', downward direction slightly.
So , if you trim 'UP', the effect of the elevator in the extreme upwards position would be slightly reduced.

Aha, so it does influence throw.
Funny you wrote:

As for the game-in my experience trimming does reduce the maximum throw of a control, even if that should not be so

Btw: not all planes had trim ruders, the 109/190 had some sheet metal which bent on the ground afaik.

It is more or less opposite in IL2, where trimming the elevator DOWN, for example, reduces the effectiveness of the upwards elevator, unless you pull it to the really extreme position- and nobody ever does that actually.

I'll have to check that, but...
As much as I hate to say it, I think you got a valid(your only one imho) point there.
It would also explain why using trim in IL2 reduces your turn radius.
(hear say - if it really does, that should be on the top of fixes)