It looks like the motor takes 30 seconds to move the jackscrew from one end to the other. Cranking presumably takes much longer. It doesn't seem hard to imagi

It looks like the motor takes 30 seconds to move the jackscrew from one end to the other. Cranking presumably takes much longer. It doesn't seem hard to imagine the ground intervening before you finish cranking back to trimmed level flight. And that's assuming there's no issue with the aerodynamic load preventing the stabilizer from being retrimmed until you unload the elevator (by pushing the yoke forward), as is being theorized to be the case.