rotoiti
Well Known Member
What should be ideally a maximum slack on the elevator trim tabs? When I am moving mine during a preflight, I can probably move them about 1/4 to 1/2 inch up and down (right one moves more than the left one).
I am trying to debug a problem where the autopilot would not hold altitude nor VSI of 0 but would repeatedly hunt up and down, with up to 500 fpm rates at some oscillations. Pushing the elevator slightly seems to make the oscillations less pronounced. There is no play on the elevator itself (from the stick to the surface), the play is present only on the trim tabs.
Could this play be the cause of the erratic autopilot behavior?
I am trying to debug a problem where the autopilot would not hold altitude nor VSI of 0 but would repeatedly hunt up and down, with up to 500 fpm rates at some oscillations. Pushing the elevator slightly seems to make the oscillations less pronounced. There is no play on the elevator itself (from the stick to the surface), the play is present only on the trim tabs.
Could this play be the cause of the erratic autopilot behavior?