What happens to the stabilizer during rollout after a normal landing?

During rollout after a normal landing, the stabilizer automatically trims to a neutral position, equivalent to 0. This trimming action ensures that the elevator control surfaces are in a neutral state, preventing any unintentional nose-up or nose-down tendencies during the rollout phase.

This automatic adjustment enhances control and stability as the aircraft decelerates on the runway. By bringing the stabilizer to a neutral position, it allows the pilots to maintain a more manageable flight control response during the crucial phase of landing when both aerodynamic and friction forces are at play.

The other options do not accurately describe the behavior of the stabilizer post-landing. For instance, automatically trimming to full nose down or full nose up would not assist in maintaining control and could lead to unintended aircraft handling characteristics, especially during rollout when the aircraft is on the ground and transitioning to taxi. The option stating that the stabilizer remains positioned where it was during landing could also introduce control issues, as it may not align with the optimal trim for taxiing.