Originally Posted by
AlexGG
Mechanical trim wheel use is shown on the trace by change of trim position absent any singal on two top lines. The only case of this I can see is at the very end of the trace.
Bear in mind that the scale on that Pitch Trim Position trace, though not labelled, is graduated in degree (unit) and half-degree increments from 0° to 7°.
We're told in a previous post that a single revolution of the trim wheel only moves the stab up or down by one-tenth of a degree (though I've seen another source that suggests it's even less than that).