Description

The design of the majority of airliners and transport aircraft incorporates a trimmable horizontal stabilizer. Like a stabilator, the trimmable stabilizer features a fully moving horizontal tail surface. However, unlike the stabilator, the trimmable stabilizer does not move in response to control column or control stick movement. Instead, it is fitted with elevators which respond to pilot or autopilot input to control pitch and adjust the aircraft attitude and the entire horizontal tail assembly moves in response to the trim system to stabilize the aircraft in the pitch axis.