Originally Posted by
Takwis
The classic stab trim runaway is a stuck, or fused switch, which causes the trim to run "continuously", to the limits of the jackscrew in one motion.
I can't have a conversation with someone who keeps repeating the same nonsense. Yes, they didn't let it get that far. That made manually trimming significantly easier for them.
So when do you think it crosses the line and becomes a Stab Trim Runaway and pilot intervention is required? After 5 secords, a minute or how about in terms of pitch change? 5 degrees, 10 degrees? Or do you let it go to the stops?
I would also say that it need not be a fused switch; it could be an intermittent short circuit somewhere in the wiring that would cause the trim motor to run for a period of time before hitting the stops of the jack screw. Intermittent short circuits are not a new concept.