I appreciate your style note, but I think you should really follow your own advice (look at the style of your own comment). If you don't fly the airplane in question for a living, it's perhaps best not to make categorical statements that turn out to be incorrect. As others have pointed out, stabilizer (not elevator) trim on large aircraft works differently from what you might expect from looking at smaller planes. People don't always realize the whole stabilizer can move, because it moves slowly and never on the ground, and you can't see it from the airplane's windows. The stabilizer has a substantial range of motion because it needs to maintain aerodynamic efficiency while offsetting the range of off-center of mass forces at the edges of the flight envelope. Runaway trim on the stabilizer can result in loss of control authority by the pilot.
