The design of the majority of airliners and transport aircraft incorporates a trimmable horizontal stabilizer which features a fully moving horizontal tail surface. The trimmable stabilizer's primary advantage is that it provides tremendous trimming power over the full speed range of the airplane since the entire stabiliser may be moved to trim the aircraft.
The trimmable horizontal stabiliser is also less sensitive to flutter, compared to an elevator trim tab, due to its larger mass and stability. Flutter is a divergent oscillatory motion of a control surface caused by the interaction of aerodynamic forces, inertia forces and the stiffness of the structure.
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