Trim servo position indicator "lag"

[digidocs]

I'm curious if other people have seen a "lag" in the position output of a Ray Allen trim servo when reversing direction.

On the one I was looking at, the position output stays constant for 2-3 seconds after going from forward to reverse or vice versa. The effect is the same as one might expect if there was some internal slack in the indicator mechanism.

Thanks!

[airguy]

Two things likely at play here - one is that the servo position sensor itself has some mechanical lag internal to the device (slop in the mechanism) before it starts reversing; the other would be that the displaying device (you didn't say if it was Ray Allen or EFIS) might have a "smoothing" algorithm that takes a few seconds to bring the display to the new value to avoid jittery data.

[az_gila]

I'm using an old style Ray Allen analog meter indicator and the response is pretty much instantaneous.

As airguy asks - are you using a digital display of some kind to show position?