Originally Posted by
hans brinker
Thanks for your detailed answer. I see your point about how far from neutral trim being the important number. I can’t remember from my ATPL theory how the pull force in an out of trim situation changes with speed, is it squared?
In general, force is proportional to speed squared, but there are a lot of moving parts, so to speak, that effect the total forces on the jackscrew. And while the forces on the jackscrew are actual, the pull forces that the pilot feels through the control column are artificially generated by the Elevator Feel System which is driven by a separate airspeed sensor on the tail.